JP2016119737A - Electric power control unit and electric power system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric power control unit capable of easily and suitably supplying electric power from a plurality of storage batteries.SOLUTION: There is provided an electric power control unit which controls electric power supplied from at least one power conditioner which controls a plurality of storage batteries to a plurality of apartments of an apartment house. The plurality of apartments are each related to at least one of the plurality of storage batteries. The electric power control unit includes a request input part which receives an output request associated with output current or output electric power related to each of the apartments from the apartment, and an instruction part which instructs the at least one power conditioner to output currents or electric power corresponding to output requests received from a plurality of apartments from the plurality of storage batteries respectively.SELECTED DRAWING: Figure 4

Description

  The present disclosure relates to a technique for controlling power supplied to a plurality of dwelling units of an apartment house.

  Conventionally, storage batteries that store power from a system power supply are used not only in detached houses but also in apartment houses such as apartments and apartments.

  For example, Japanese Patent Laying-Open No. 2014-82877 (Patent Document 1) discloses a power supply / reception system for an apartment house. The system includes an independent first power line that transmits power received from an electric vehicle by a power receiving unit, an independent second power line that transmits power supplied to a plurality of rooms, and a first power line on an input side. And a power supply control unit including a switch matrix to which a main power line for commercial AC power transmission is connected and a second power line is connected to the output side. In the system, a switch is made so that a resident in each room performs an authentication process using an ID (Identification) card, and connects one of the first power supply lines to the second power line toward the room specified by the authentication process. The matrix is controlled, and electric power of the electric vehicle connected to the power receiving unit is supplied to the living room.

JP 2014-82877 A

  The power supply / reception system of Patent Document 1 is configured to supply power from a specific electric vehicle to a load in a specific room using a switch matrix. Therefore, it is not possible to perform power interchange such as supplying power from an electric vehicle other than the specific electric vehicle to a load in the specific living room. In addition, the use of a switch matrix complicates the system configuration, such as the necessity of preparing various power supply lines, and increases the cost and reduces the reliability.

  The present disclosure has been made to solve the above-described problems, and an object in one aspect is to easily and appropriately supply power from a plurality of storage batteries to a plurality of dwelling units in an apartment house. It is an object of the present invention to provide a power control device and a power system that can be used.

  According to an embodiment, there is provided a power control device that controls power supplied to a plurality of dwelling units of an apartment house from at least one power conditioner that controls a plurality of storage batteries. Each of the plurality of dwelling units is associated with at least one of the plurality of storage batteries. The power control device includes: a request input unit that receives an output request related to an output current or output power of a storage battery associated with the dwelling unit from each of the dwelling units; and at least one power conditioner, each of the dwelling units And an instruction unit that instructs to output current or power corresponding to the output request received from each of the plurality of storage batteries.

  According to this indication, it becomes possible to supply electric power from a plurality of storage batteries simply and appropriately to a plurality of dwelling units of an apartment house.

It is a schematic diagram which shows the whole structure of the electric power system according to Embodiment 1. It is a figure for demonstrating the structure of the power conditioner according to Embodiment 1. FIG. It is a figure for demonstrating the ratio of the output current of a storage battery with respect to the consumption current of a dwelling unit. FIG. 3 is a schematic diagram showing a functional configuration of a power control device according to the first embodiment. 5 is a flowchart showing a processing procedure (part 1) of the power control apparatus according to the first embodiment. 6 is a flowchart showing a processing procedure (part 2) of the power control apparatus according to the first embodiment. It is a schematic diagram which shows the function structure of the electric power control apparatus according to Embodiment 2. It is a figure for demonstrating the relationship between a battery remaining charge and the reference value of consumption current. It is a figure which shows the information table according to Embodiment 2. It is a flowchart which shows the process sequence (the 1) of the power control apparatus according to Embodiment 2. It is a flowchart which shows the process sequence (the 2) of the power control apparatus according to Embodiment 2. It is a figure for demonstrating the relationship between a battery remaining charge and the reference value of current consumption. FIG. 11 is a schematic diagram showing a functional configuration of a power control device according to a third embodiment. It is a figure which shows the time until the battery remaining amount, time change amount, and battery remaining amount of a some storage battery reach | attain a reference | standard remaining amount value. 12 is a flowchart showing a processing procedure of the power control apparatus according to the third embodiment. It is a schematic diagram which shows the function structure of the electric power control apparatus according to Embodiment 4. It is a figure which shows the information table according to Embodiment 4. It is a figure which shows the information table according to Embodiment 4. 6 is a flowchart showing a processing procedure of a power control device according to a fourth embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[Embodiment 1]
<Overall system configuration>
First, the overall configuration of the power system according to the first embodiment will be described.

  FIG. 1 is a schematic diagram showing an overall configuration of the power system according to the first embodiment. FIG. 1 shows an electric power system used for a condominium 11, which is an example of an apartment house composed of a plurality of dwelling units 9 (for example, dwelling units 9A to 9C are shown in FIG. 1).

  Referring to FIG. 1, the power system includes power conditioners 2A to 2C (hereinafter also collectively referred to as “power conditioner 2”), distribution board 3, and current sensors 4A to 4C (hereinafter referred to as “current sensors”). 4 ”, storage batteries 5A to 5C (hereinafter also referred to as“ storage battery 5 ”), system power supply 6, and current sensors 8A to 8C (hereinafter also referred to as“ current sensor 8 ”). And the power control device 10.

  The power conditioner 2 can take in AC power from the AC power line 7 and charge the storage battery 5, while supplying (discharging) DC power from the storage battery 5 to the AC power line 7. The specific configuration of the power conditioner 2 will be described later.

  The distribution board 3 distributes the electric power supplied from the system power supply 6 and the power conditioner 2 to each dwelling unit 9 in the apartment 11. The distribution board 3 is connected to the system power supply 6, each power conditioner 2, and each dwelling unit 9. For example, according to the instruction | indication of the electric power control apparatus 10, the distribution board 3 is controlled so that the electric power from the power conditioner 2 is given priority to the electric power from the system power supply 6, and it supplies to each dwelling unit 9. FIG. The distribution board 3 is configured to shut off when the power consumption of each dwelling unit 9 exceeds a specified value.

  The current sensor 4 is provided between the power conditioner 2 and the storage battery 5. The current sensor 4 detects the current flowing through the storage battery 5 and transmits the detection result to the power control device 10. The detection result of the current sensor 4 includes the charge / discharge current value of the storage battery 5. The current sensor 4 may be configured to be included in the power conditioner 2.

  The storage battery 5 is a rechargeable power storage element, and typically includes a secondary battery such as a lithium ion battery or a nickel metal hydride battery. The storage battery 5 is configured by connecting a plurality of battery cells in series. In addition, the storage battery 5 may be comprised as a storage battery mounted in moving means, such as an electric vehicle and a hybrid vehicle.

  The system power supply 6 is, for example, a commercial power system, and supplies single-phase, three-wire AC power to each dwelling unit 9 of the apartment 11 via the AC power line 7 and the distribution board 3. The AC power line 7 is a single-phase three-wire power line and includes two voltage lines and a neutral line.

  The current sensor 8 is provided between the distribution board 3 and the dwelling unit 9. The current sensor 8 detects the current flowing through the dwelling unit 9 (that is, current consumption), and transmits the detection result to the power control apparatus 10. The detection result of the current sensor 8 includes a current consumption value.

  A plurality of electric devices are provided in the dwelling unit 9. The electric device is, for example, an AC 100 V fan, a vacuum cleaner, a refrigerator, or an AC 200 V air conditioner. Note that the electrical device is not limited to this, and may be a television, a personal computer, a microwave oven, or the like.

  The power control device 10 controls the power supplied from each storage battery 5 to the plurality of dwelling units 9 in the apartment 11 via the power conditioner 2. Specifically, the power control device 10 outputs (supplied) from each storage battery 5 by giving an instruction to the power conditioner 2 based on a request from each dwelling unit 9, detection results of the current sensor 4 and the current sensor 8, and the like. ) Control the current or power.

  In the present embodiment, dwelling units 9A to 9C are associated with storage batteries 5A to 5C, respectively. For example, it is assumed that the user of the dwelling unit 9A owns the storage battery 5A, the user of the dwelling unit 9B owns the storage battery 5B, and the user of the dwelling unit 9C owns the storage battery 5C. Therefore, for example, the power control device 10 controls the current or power output from the storage battery 5A in response to a request from the dwelling unit 9A. A specific control method of the power control apparatus 10 will be described later. The power control apparatus 10 may be realized by hardware such as a circuit, or may be realized by executing data and programs stored in a memory (not shown) including a CPU (Central Processing Unit) (not shown). It may be configured.

  Next, the configuration of the power conditioner 2 will be specifically described with reference to FIG. FIG. 2 is a diagram for illustrating a configuration of power conditioner 2 according to the first embodiment. In the following, description will be given focusing on one power conditioner 2A among the plurality of power conditioners 2. However, the configuration of the power conditioners 2B and 2C (and other power conditioners 2 not shown) other than the power conditioner 2A is the same as the configuration of the power conditioner 2A.

  Referring to FIG. 2, a power conditioner 2A includes a control device 20 for controlling the operation of the power conditioner 2A, and a bidirectional DC / AC converter 22 that bidirectionally converts DC power and AC power. A bidirectional DC / DC converter 24 capable of bidirectionally converting DC power voltage, an interconnection relay RL1, and a self-supporting relay RL2.

  The interconnection relay RL <b> 1 is closed (ON) when the power conditioner 2 </ b> A is connected to the system power supply 6 and supplies AC power to each dwelling unit 9 in the apartment 11 (operates in an interconnection). The independent relay RL2 is closed (ON) when the power conditioner 2A is independent from the system power supply 6 and supplies AC power to each dwelling unit 9 (independent operation). Typically, control device 20 controls the opening / closing operation of interconnection relay RL1 and self-supporting relay RL2.

  The bidirectional DC / DC converter 24 converts the DC power received from the storage battery 5 </ b> A into a voltage and supplies it to the bidirectional DC / AC converter 22. The bidirectional DC / DC converter 24 converts the DC power received from the bidirectional DC / AC converter 22 into a voltage and supplies it to the storage battery 5A.

  The bidirectional DC / AC converter 22 converts the DC power received from the bidirectional DC / DC converter 24 into a single-phase three-wire AC power and converts the AC power into the AC power line 7 (the wiring 72 or the wiring 73). ). The bidirectional DC / AC converter 22 converts AC power received from the AC power line 7 into DC power and supplies the DC power to the bidirectional DC / DC converter 24.

  The control device 20 controls the operation of the power conditioner 2A. The control device 20 may be realized by hardware such as a circuit, or may include a CPU (not shown) and a configuration realized by the CPU executing data and programs stored in a memory (not shown). .

  The control device 20 includes a bidirectional DC / AC converter 22 and a bidirectional DC / DC converter 24 based on current values and voltage values received from current sensors and voltage sensors (not shown) provided on the wirings 72 and 73, respectively. Instruct the operation. Typically, control device 20 has a current value (or power) that is output (discharged) from storage battery 5A to AC power line 7 via power conditioner 2A according to an instruction from power control device 10. Value).

  For example, when the control device 20 receives an instruction from the power control device 10 to output a current of 10 A (ampere) from the storage battery 5 A, the current output from the storage battery 5 A becomes 10 A according to the instruction. Control. Then, a current of 10 A is output to the AC power line 7 from the power conditioners 2A. In the present embodiment, power loss due to power conversion is not taken into consideration for ease of explanation.

  The AC power line 7 is wired to the power conditioner 2 </ b> A and the apartment 11 through the distribution board 3. That is, the AC power line 7 is a power line for connecting the power conditioner 2A, the system power supply 6 and the apartment 11 to each other. More specifically, the AC power line 7 includes a wiring 71 that connects the system power supply 6 and the switch SWa, a wiring 75 that connects the switch SWa and the apartment 11, a wiring 72 that is connected to the wiring 71, and a wiring 75. Wiring 73 connected to the. The wiring 72 is connected to the interconnection relay RL1 of the power conditioner 2A. The wiring 73 is connected to the self-supporting relay RL2 of the power conditioner 2A.

  Distribution board 3 includes switch SWa and switch SWb. The switch SWa is provided between the wiring 71 and the wiring 75, and the switch SWb is provided on the wiring 73.

  Here, when the system power supply 6 is not out of power, the power conditioner 2 </ b> A is interconnected with the system power supply 6. In this case, the switch SWa is in a closed (on) state, and the switch SWb is in an open (off) state. Typically, the opening / closing operation of the switches SWa and SWb is controlled by the control device 20 of the power conditioner 2A.

  The power conditioner 2A is connected to the system power supply 6 by turning on the interconnection relay RL1 (and turning off the self-supporting relay RL2). The power conditioner 2A controls the discharge current from the storage battery 5A and the charging current to the storage battery 5A in synchronization with the AC voltage of the system power supply 6 to discharge from the storage battery 5A or charge the storage battery 5A. Is possible.

  On the other hand, when the power conditioner 2A detects a power failure of the system power supply 6, the power conditioner 2A turns off the switch SWa, turns on the switch SWb, turns off the interconnection relay RL1, and turns on the independent relay RL2. As a result, the power conditioner 2 </ b> A and the apartment 11 are disconnected from the system power supply 6. At this time, the power conditioner 2A switches from the grid operation to the self-sustained operation, and controls charging / discharging of the storage battery 5A.

<Overview of system operation>
Again, an outline of the operation of the power system according to the first embodiment will be described with reference to FIG. As described above, the dwelling units 9A to 9C are associated with the storage batteries 5A to 5C, respectively. The power control device 10 identifies dwelling unit identification information for identifying each dwelling unit 9 (hereinafter referred to as “dwelling unit ID”) and storage battery identification information for identifying each storage battery 5 (hereinafter referred to as “storage battery ID”). Are stored in the internal memory. In the present embodiment, the dwelling unit IDs “1” to “3” of the dwelling units 9A to 9C are stored in association with the storage battery IDs “1” to “3” of the storage batteries 5A to 5C, respectively.

  In Embodiment 1, each user (resident) of the dwelling units 9A to 9C can make an output request for current (or power) only to the storage battery 5 associated with his / her dwelling unit 9. . Here, the power control device 10 receives a request from the user of the dwelling unit 9A to set the output current of the storage battery 5A to 10 A (ampere), and requests the user of the dwelling unit 9B to set the output current of the storage battery 5B to 6A. Assume that a request is received from the user of the dwelling unit 9C to set the output current of the storage battery 5C to 4A. Note that the user of the dwelling unit 9 transmits the request to the power control apparatus 10 using a tablet device or the like that the user owns. Note that the tablet device is a known hardware device having, for example, a CPU, a memory, a touch panel, a wireless communication unit, and the like.

  In this case, the power control apparatus 10 instructs the power conditioner 2A to set the output current of the storage battery 5A to 10A, and instructs the power conditioner 2B to set the output current of the storage battery 5B to 6A. Instruct the power conditioner 2C to set the output current to 4A.

  Each power conditioner 2 controls the output current of the storage battery 5 in accordance with the instruction. Therefore, the current obtained by adding the current supplied from the system power supply 6 to the current of 20 A, which is the total value of the output currents of the storage batteries 5A to 5C, is supplied to the distribution board 3 and distributed to each dwelling unit 9 in the apartment 11. The In this case, of the current consumed by each dwelling unit 9 (current consumption), the current requested by the user of each dwelling unit 9 can be regarded as being supplied from the storage battery 5 associated with the dwelling unit 9. Since the output current of the storage battery 5B requested by the user of the dwelling unit 9B is 6A, for example, when a current of 10A is consumed in the dwelling unit 9B, it is assumed that a current of 6A is supplied from the storage battery 5B, It can be considered that a current of 4 A is supplied from the system power supply 6. However, the upper limit value of the output current of the storage battery 5 is assumed to be the rated current value.

(Modification)
In the above description, the configuration in which the user of each dwelling unit 9 requests the output current of each storage battery 5 with a specific value has been described. Here, the structure which the user of the said dwelling unit 9 requests | requires the ratio R of the output current of the storage battery 5 with respect to the consumption current of the dwelling unit 9 is demonstrated.

  FIG. 3 is a diagram for explaining the ratio R of the output current of the storage battery 5 to the consumption current of the dwelling unit 9. In addition, below, it demonstrates paying attention to one dwelling unit 9A among the some dwelling units 9. FIG. In the example of FIG. 3, the current consumption value of the dwelling unit 9A is 100A. This current consumption value (100A) is detected by the current sensor 8A and transmitted to the power control apparatus 10 as a detection value.

  When the user wants to accommodate all the consumption current of the dwelling unit 9A with the output current of the storage battery 5, as shown in FIG. 3A, the user sets the ratio R to 100% using the tablet device. Then, the ratio R is transmitted from the tablet device to the power control device 10. The power control device 10 calculates the output current value of the storage battery 5 based on the consumption current value (100A) received from the current sensor 8A and the ratio R (100%) received from the dwelling unit 9 (in this case, 100A). . Then, the power control device 10 instructs the power conditioner 2A to set the output current value of the storage battery 5A to 100A.

  On the other hand, when the user wants to accommodate 75% of the consumption current of the dwelling unit 9A with the output current of the storage battery 5, the user uses the tablet device to set the ratio R as shown in FIG. 75% is set and the ratio R is requested to the power control apparatus 10. The power control device 10 calculates the output current value of the storage battery 5A based on the consumption current value (100A) received from the current sensor 8A and the ratio R (75%) received from the dwelling unit 9A (75A in this case). . Then, the power control device 10 instructs the power conditioner 2A to set the output current value of the storage battery 5A to 75A. In this case, of the current consumed by the dwelling unit 9A, it is considered that the current for 75A is supplied from the storage battery 5A, and the current for 25A is considered supplied from the system power supply 6.

  In the above description, the configuration in which the user of the dwelling unit 9 makes a request regarding the output current of the storage battery 5 may be configured to make a request regarding the output power of the storage battery 5. Specifically, the user requests the output power of the storage battery 5 to be a desired power value, or requests the ratio Rx of the output power of the storage battery 5 to the power consumption of the dwelling unit 9. In this case, a power sensor that detects the output power of the storage battery 5 is provided instead of the current sensor 4, and the power detected by the power sensor is transmitted to the power control apparatus 10. Further, instead of the current sensor 8, a power sensor that detects the power consumption of the dwelling unit 9 is provided, and the power detected by the power sensor is transmitted to the power control device 10. The power sensor may be composed of a current sensor and a voltage sensor.

<Functional Configuration of Power Control Device 10A>
FIG. 4 is a schematic diagram showing a functional configuration of power control apparatus 10A according to the first embodiment. Referring to FIG. 4, power control apparatus 10A includes a request input unit 101A, a consumption value input unit 102A, an instruction unit 103A, an output value input unit 104A, and an output determination unit 105A. These are basically realized by the CPU of the power control apparatus 10A executing a program stored in the memory. Note that some or all of these functional configurations may be realized by hardware. The power control apparatus 10A corresponds to the power control apparatus 10 illustrated in FIG. 1, but for the sake of distinction from other embodiments, an additional code such as “A” is attached for convenience. The same applies to the second to fourth embodiments.

  The request input unit 101 </ b> A receives an output request regarding the output current or output power of the storage battery 5 associated with the dwelling unit 9 from each of the plurality of dwelling units 9. Specifically, the request input unit 101 </ b> A receives a request value for the output current of the storage battery 5 or a ratio R of the output current value of the storage battery 5 to the current consumption value of the dwelling unit 9 as an output request related to the output current of the storage battery 5. The request input unit 101 </ b> A receives a request value for the output power of the storage battery 5 or a ratio Rx of the output power value of the storage battery 5 to the power consumption value of the dwelling unit 9 as an output request related to the output power of the storage battery 5. The request input unit 101A sends an output request received from each of the plurality of dwelling units 9 to the instruction unit 103A.

  The consumption value input unit 102 </ b> A receives, for each of the plurality of dwelling units 9, an input of a current consumption or power consumption detection value (consumption detection value) of the dwelling unit 9. Specifically, the consumption value input unit 102A receives (receives) input of consumption current values of the dwelling units 9A to 9C detected by the current sensors 8A to 8C. Alternatively, when a power sensor is provided instead of the current sensor 8, the consumption value input unit 102 </ b> A receives input of each power consumption value of the dwelling units 9 </ b> A to 9 </ b> C detected by each power sensor. The consumption value input unit 102A sends the received consumption detection value to the instruction unit 103A.

  The instruction unit 103 </ b> A instructs the power conditioner 2 such that current or power corresponding to the output request received from each of the plurality of dwelling units 9 is output from each of the plurality of storage batteries 5. The instruction unit 103A instructs each power conditioner 2 so that the current output from each storage battery 5 becomes the output current value of each storage battery 5 received from the request input unit 101A. Alternatively, the instruction unit 103A instructs each power conditioner 2 so that the power output from each storage battery 5 becomes the output power value of each storage battery 5 received from the request input unit 101A.

  In another aspect, for each dwelling unit 103A, the instruction unit 103A determines the output current value of the storage battery 5 associated with the dwelling unit 9 based on the ratio R received from the dwelling unit 9 and the current consumption value of the dwelling unit 9. calculate. The instruction unit 103A instructs the power conditioner 2 so that the current output from the storage battery 5 becomes the calculated output current value.

  In addition, for each dwelling unit 103, the instruction unit 103A calculates the output power value of the storage battery 5 associated with the dwelling unit 9 based on the ratio Rx received from the dwelling unit 9 and the power consumption value of the dwelling unit 9. The instruction unit 103A instructs the power conditioner 2 so that the power output from the storage battery 5 becomes the calculated output power value.

  The output value input unit 104 </ b> A receives an input of a detection value (output detection value) of the output current or output power of the storage battery 5 for each storage battery 5. Specifically, output value input unit 104A accepts input of output current values of storage batteries 5A to 5C detected by current sensors 4A to 4C. When a power sensor is provided instead of the current sensor 4, the output value input unit 104 </ b> A receives input of output power values of the storage batteries 5 </ b> A to 5 </ b> C detected by each power sensor. The output value input unit 104A sends the received output detection value to the output determination unit 105A.

  Based on the output detection value for each storage battery 5, output determination unit 105 </ b> A determines whether or not current or power corresponding to the output request received from each dwelling unit 9 is output from each storage battery 5. Specifically, the output determination unit 105 </ b> A receives the output current value or the output power value (instruction value) of each storage battery 5 that the instruction unit 103 </ b> A instructs the power conditioner 2. The output determination unit 105 </ b> A determines whether or not the output detection value and the instruction value match for each storage battery 5.

  When the output detection value and the instruction value for the storage battery 5 match, the output determination unit 105 </ b> A determines that the current or power corresponding to the output request is output from the storage battery 5. When the output detection value and the instruction value for the storage battery 5 do not match, the output determination unit 105 </ b> A determines that the current or power corresponding to the output request is not output from the storage battery 5. In the present embodiment, the output detection value and the instruction value “match” does not only mean that both match completely, but also the degree of matching between the values is within a certain range (for example, the error is Less than a few percent). The predetermined range can be arbitrarily determined by the user. The output determination unit 105A sends the determination result to the instruction unit 103A.

  When the current or power corresponding to the output request is not output from the storage battery 5, the instruction unit 103A gives an instruction to the power conditioner 2 to stop the output from the storage battery 5. For example, when the current corresponding to the output request is not output from the storage battery 5B, the instruction unit 103A instructs the power conditioner 2B to stop the output of the current from the storage battery 5B.

<Processing procedure>
A processing procedure of power control apparatus 10A according to the first embodiment will be described. Here, for ease of explanation, a case will be described in which power control apparatus 10A receives an output request for storage battery 5A from dwelling unit 9A and gives an instruction to power conditioner 2A. However, when the power control apparatus 10A receives an output request from the dwelling units 9B and 9C, the same process as the process described below is performed.

(Part 1)
FIG. 5 is a flowchart showing a processing procedure (part 1) of power control apparatus 10A according to the first embodiment. Here, a case where the power control apparatus 10A receives an output current value as an output request will be described. However, even when the power control apparatus 10A receives an output power value as an output request, the same processing in which “current” is replaced with “power” is performed in the following processing. The following steps are realized by the CPU of the power control apparatus 10A executing a program stored in the memory.

  Referring to FIG. 5, power control device 10A determines whether or not a request value for the output current of storage battery 5A has been received as an output request from dwelling unit 9A (step S2). Power control apparatus 10A repeats the process of step S2 when the request value has not been received (NO in step S2). On the other hand, when power control apparatus 10A receives the requested value (YES in step S2), has it received the consumption detection value (here, the consumption current value) of dwelling unit 9A by the function of consumption value input unit 102A? It is determined whether or not (step S3). When the current consumption value is not received (NO in step S3), power control apparatus 10A repeats the process of step S3.

  On the other hand, when power consumption device 10A receives the current consumption value (YES in step S3), power control device 10A determines whether the requested value is equal to or greater than the rated current value (step S4). The rated current value is stored in the memory of the power control apparatus 10. If the required value is equal to or greater than the rated current value (YES in step S4), power control device 10A changes the required value to the rated current value (step S6), and proceeds to the process of step S12. If the required value is less than the rated current value (NO in step S4), power control apparatus 10A determines whether the required value is equal to or greater than the current consumption value received in step S3 (step S8).

  If the required value is greater than or equal to the current consumption value (and less than the rated current value) (YES in step S8), power control device 10A changes the required value to the current consumption value (step S10), and step S12. Proceed to the process. When the required value is less than the current consumption value (NO in step S8), power control device 10A proceeds to the process of step S12. That is, when the required value is less than the current consumption value, the power control apparatus 10A does not change the required value.

  Next, the power control apparatus 10A instructs the power conditioner 2A to output a current corresponding to the request value (changed request value or request value not changed) from the storage battery 5A (step S12). ). In other words, the power control apparatus 10A instructs each power conditioner 2A with the current value (indicated value) of the current output from the storage battery 5A based on the required value. As a specific example, for example, when the required value (10A) of the output current of the storage battery 5A is received from the dwelling unit 9A, the power control device 10A instructs the power conditioner 2A to output the current of 10A from the storage battery 5A. To do. In this case, the request value and the instruction value are the same.

  The power control apparatus 10A determines whether or not the current value (output detection value) detected by the current sensor 4A has been received (step S14). When the output control value is not received (NO in step S14), power control device 10A repeats the process of step S14. On the other hand, when power control device 10A receives the output detection value (YES in step S14), power control device 10A determines whether the output detection value for battery 5A matches the instruction value (step S16). If they match (YES in step S16), power control device 10A instructs power conditioner 2A to continue outputting the current from storage battery 5A (step S18). If they do not match (NO in step S16), power control device 10A instructs power conditioner 2A to stop outputting the current from storage battery 5A (step S19).

(Part 2)
FIG. 6 is a flowchart illustrating a processing procedure (part 2) of power control apparatus 10A according to the first embodiment. Here, a case will be described in which the power control apparatus 10A receives a ratio R of the output current value of the storage battery 5A to the consumption current value of the dwelling unit 9A as an output request. However, even when the power control apparatus 10A receives the ratio Rx as an output request, the same processing is performed in which “current” is replaced with “power” in the following processing.

  Referring to FIG. 6, power control device 10A determines whether or not ratio R of the output current value of storage battery 5A to the consumption current value of dwelling unit 9A has been received as an output request from dwelling unit 9A (step S20). When not receiving ratio R (NO in step S20), power control device 10A repeats the process of step S20.

  On the other hand, when the power control apparatus 10A receives the ratio R (YES in step S20), it determines whether or not the current consumption value of the dwelling unit 9A is received from the current sensor 8A (step S22). When not having received the consumption current value (NO in step S22), power control device 10A repeats the process of step S22. On the other hand, when the power control apparatus 10A receives the current consumption value (YES in step S22), the current value (instruction value) of the current output from the storage battery 5A based on the current consumption value and the ratio R. Is calculated (step S24). The power control apparatus 10A instructs the power conditioner 2A so that a current corresponding to the calculated instruction value is output from the storage battery 5A (step S26). As a specific example, for example, when the ratio R (75%) is received from the dwelling unit 9A and the current consumption value (100A) is received from the current sensor 8A, the power control device 10A outputs the current of 75A from the storage batteries 5A. To instruct the power conditioner 2A.

  Since the process of step S28-step S34 is the same as the process of step S14-S19, respectively, the detailed description is not repeated.

<Advantages>
According to the first embodiment, the user of each dwelling unit 9 can make an output request to the storage battery 5 associated with the dwelling unit 9. In addition, when the system power supply 6 is not out of power, the power required for the output among the power consumed by the dwelling unit 9 is considered to be supplied from the storage battery 5, and the remaining power is considered to be supplied from the system power supply 6. By switching the power supply source according to the time zone, it is possible to contribute to peak shift and peak cut. In addition, each dwelling unit 9 can use both the system power and the storage battery power, and therefore can receive a supply that is higher than the rated power of the storage battery 5.

[Embodiment 2]
A peak shift or a peak cut effect can be obtained by controlling the storage battery 5 such that power is stored at night when the power demand is low and discharged during the day when the power demand is high. In this case, it is necessary to leave the remaining battery capacity of the storage battery 5 as much as possible in order to use it in the daytime when there is a lot of power demand. It is also assumed that the remaining battery capacity of the storage battery 5 is left in preparation for a system power supply 6 power failure.

  Furthermore, when the system power supply 6 has a power failure, the power supply source for the dwelling unit 9 is only the storage battery 5. However, since the battery capacity of the storage battery 5 is limited, a large amount of power cannot be supplied from the storage battery 5 to the dwelling unit 9 for a long time. In general, it is difficult to predict the time for the system power supply 6 to recover from a power failure.

  In consideration of the above cases, the second embodiment describes a configuration that prevents power from being output from each storage battery 5 without limitation by providing a certain restriction on the power supply from each storage battery 5. To do.

  Since <system configuration> in the second embodiment is the same as that in the first embodiment, detailed description thereof will not be repeated. The same applies to the following third or fourth embodiment.

<Functional Configuration of Power Control Device 10B>
FIG. 7 is a schematic diagram showing a functional configuration of power control apparatus 10B according to the second embodiment. Referring to FIG. 7, power control device 10B includes request input unit 101B, consumption value input unit 102B, instruction unit 103B, battery remaining amount input unit 110B, reference value setting unit 111B, and consumption determination unit 112B. A device input unit 113B, a consumption information storage unit 114B, and a total value calculation unit 115B. The request input unit 101B and the consumption value input unit 102B are substantially the same as the request input unit 101A and the consumption value input unit 102B, respectively. However, the consumption value input unit 102B sends the consumption detection value to the consumption determination unit 112B.

  The battery remaining amount input unit 110 </ b> B receives an input of the remaining battery amount of each storage battery 5. Specifically, the battery remaining amount input unit 110 </ b> B receives the battery remaining amount of each storage battery 5 from the power conditioner 2 that controls the storage battery 5. When the storage battery 5 is equipped with a communication function, the remaining battery charge input unit 110 </ b> B may receive the remaining battery charge from the storage battery 5. In addition, a battery remaining amount (SOC: State of Charge) (%) shows the present remaining capacity with respect to a full charge capacity in percentage (0-100%). Further, the remaining battery capacity input unit 110B may receive the remaining battery capacity (Wh) from the storage battery 5, and the remaining battery capacity input section 110B may calculate the SOC from the received remaining storage battery capacity and storage battery capacity. .

  The reference value setting unit 111 </ b> B sets a reference value of current consumption or power consumption of the dwelling unit 9 associated with the storage battery 5 based on the remaining battery level of each storage battery 5. Specifically, as illustrated in FIG. 8, the reference value setting unit 111 </ b> B sets the reference value smaller as the battery remaining amount of the storage battery 5 is smaller.

  FIG. 8 is a diagram for explaining the relationship between the remaining battery level and the reference value of current consumption. Referring to FIG. 8A, it can be seen that the remaining battery capacity of the storage battery 5 decreases as time elapses. Thus, when the battery remaining amount of the storage battery 5 is decreasing as time passes, the reference value setting unit 111B has a reference value of consumption current (consumption current reference value) as shown in FIG. 8B. Set to be smaller.

  For example, the reference value setting unit 111B sets the current consumption reference value to 5A when the remaining battery level is 100%, and sets the current consumption reference value to 4A when the remaining battery level is 80%. When the remaining amount is 50%, the current consumption reference value is set to 2.5A. The relationship between the remaining battery level and the power consumption reference value is the same as in FIG. Specifically, the reference value setting unit 111B sets the reference value for power consumption to be smaller as the remaining battery capacity of the storage battery 5 is smaller. In addition, although FIG. 8 demonstrated the example in which the battery remaining amount of the storage battery 5 and the reference value are proportional, it is not restricted to this, The reference value should just become small, so that the battery remaining amount of the storage battery 5 is small. .

  Referring to FIG. 7 again, reference value setting unit 111B may set the reference value to be a predetermined value. For example, the reference value setting unit 111 </ b> B sets the consumption current reference value to the rated current value of the storage battery 5. Alternatively, the reference value setting unit 111 </ b> B sets the power consumption reference value to the rated power value of the storage battery 5. This is because if the storage battery 5 is operated at a rated current value (rated power value) or more, it causes malfunction and failure.

  For each of the plurality of dwelling units 9, the device input unit 113B receives input of identification information (device information) of one or more home appliances selected from among the plurality of home appliances that the dwelling unit 9 has. Specifically, when one or more home appliances are selected by the user of the dwelling unit 9, identification information of the home appliances is transmitted from the tablet device. Device input unit 113B accepts (receives) input of identification information of the home appliance. Device input unit 113B sends identification information of one or more home appliances to total value calculation unit 115B.

  For each of the plurality of dwelling units 9, the consumption information storage unit 114B stores consumption information regarding the current consumption or power consumption of the home appliance for each of the plurality of home appliances included in the dwelling unit 9. Specifically, the consumption information storage unit 114B stores an information table 500 as shown in FIG.

  FIG. 9 shows information table 500 according to the second embodiment. Referring to FIG. 9, in information table 500, a refrigerator, a vacuum cleaner, a washing machine, and a television are registered as home appliances provided in dwelling unit 9A. Furthermore, in the information table 500, current consumption and power consumption of these home appliances are registered. The consumption information storage unit 114B also stores information tables corresponding to the dwelling units 9B and 9C.

  Again, referring to FIG. 7, total value calculation unit 115 </ b> B receives identification information of one or more home appliances selected in each dwelling unit 9 from device input unit 113 </ b> B. And the total value calculation part 115B calculates the total value of the electric current or electric power consumed by the one or more home appliances for each dwelling unit 9 based on the consumption information of the one or more home appliances selected by the dwelling unit 9. calculate. As a specific example, it is assumed that the total value calculation unit 115B has received the identification information of the television and the refrigerator selected in the dwelling unit 9A. In this case, the total value calculation unit 115B refers to the information table 500, calculates the total value of current consumption of the dwelling unit 9A as 5A, and calculates the total value of power consumption of the dwelling unit 9A as 500W. The total value calculation unit 115B sends the total value for each dwelling unit 9 to the consumption determination unit 112B.

  In a certain situation, consumption determination unit 112B receives the consumption detection value of each dwelling unit 9 from consumption value input unit 102B, and receives the reference value set in each dwelling unit 9 from reference value setting unit 111B. The consumption determination unit 112B determines, for each dwelling unit 9, whether the detected consumption value of the dwelling unit 9 is equal to or greater than a reference value. The consumption determination unit 112B sends the determination result to the instruction unit 103B.

  In another aspect, consumption determination unit 112B receives the total value for each dwelling unit 9 from total value calculation unit 115B. The consumption determination unit 112B determines, for each dwelling unit 9, whether the total value of the dwelling units 9 is equal to or greater than a reference value.

  The instruction | indication part 103B is a power conditioner 2 with the instruction | indication which stops the output from the storage battery 5 linked | related with the said dwelling unit 9, when the consumption detection value of the said dwelling unit 9 is more than a reference value about each dwelling unit 9 in a certain situation. To give. In another aspect, when the total value of the dwelling units 9 is greater than or equal to a reference value, the instruction unit 103B instructs the power conditioner 2 to stop the output from the storage battery 5 associated with the dwelling unit 9. To give.

  In addition, even if the instruction | indication part 103B is a case where the output request | requirement is received from the dwelling unit 9 by the request | requirement input part 101B, the consumption detection value (or total value) of the said dwelling unit 9 is more than a reference value by the consumption judgment part 112B. If it is determined that there is, an instruction to stop the output from the storage battery 5 associated with the dwelling unit 9 is given to the power conditioner 2. That is, the instruction unit 103B prioritizes the determination result of the consumption determination unit 112B over the output request received by the request input unit 101B.

  The power control device 10B may include the same configuration as each of the output value input unit 104A and the output determination unit 105A that are the configuration of the power control device 10A described above.

<Processing procedure>
A processing procedure of power control device 10B according to the second embodiment will be described. Here, for ease of explanation, the case where the power control apparatus 10B accepts input of the current consumption value of the dwelling unit 9A (part 1) and the case where the input of device information selected by the dwelling unit 9A is accepted (part 2) will be described. To do. However, when the power control device 10B receives the input of the consumption current value (or device information) from the dwelling units 9B, 9C, and the power control device 10B receives the input of the power consumption value (or device information) from the dwelling units 9A, 9B, 9C. Also in the case of accepting, the same processing as described below is performed.

(Part 1)
FIG. 10 is a flowchart showing a processing procedure (part 1) of power control apparatus 10B according to the second embodiment. Here, it is assumed that the system power supply 6 has not failed. The following steps are realized by the CPU of the power control apparatus 10B executing a program stored in the memory. The same applies to FIG.

  Referring to FIG. 10, power control device 10B determines whether or not the current consumption value of dwelling unit 9A has been received from current sensor 8A (step S40). When power consumption control device 10B has not received the current consumption value (NO in step S40), power control device 10B repeats the process of step S40.

  On the other hand, when power consumption device 10B receives the current consumption value (YES in step S40), power control device 10B determines whether the current consumption value is equal to or greater than a reference value set for dwelling unit 9A (step S42). If the current consumption value is less than the reference value (NO in step S42), power control device 10B instructs power conditioner 2A to output a current corresponding to the current consumption value from storage battery 5A (step S42). S44). On the other hand, when the current consumption value is equal to or greater than the reference value (YES in step S42), power control device 10B instructs power conditioner 2A to stop the output of current from storage battery 5A (step S46). .

  The process as described above may be executed when it is within a predetermined time after the power failure of the system power supply 6 (for example, within 5 minutes after the power failure). In this case, the power control apparatus 10B determines in step S42 whether or not the current consumption value of the dwelling unit 9A immediately before the power failure is equal to or greater than a reference value. Note that the power control apparatus 10 </ b> B can recognize the power failure of the system power supply 6 by receiving a notification from the power conditioner 2 that the system power supply 6 has failed. Alternatively, the power control device 10B may be configured to detect a power failure based on the current consumption received from the current sensor 8.

(Part 2)
FIG. 11 is a flowchart showing a processing procedure (part 2) of power control device 10B according to the second embodiment. Here, a scene is assumed in which a predetermined time has been exceeded after the power failure of the system power supply 6 (for example, it has exceeded 5 minutes after the power failure).

  Referring to FIG. 11, power control device 10B determines whether or not the identification information (device information) of the home appliance selected by dwelling unit 9A has been received from dwelling unit 9A (step S50). If the power control apparatus 10B has not received the device information (NO in step S50), the power control apparatus 10B repeats the process of step S50.

  On the other hand, if power control apparatus 10B receives the device information (YES in step S50), power control device 10B refers to information table 500 to calculate the total value of current consumption of the home appliances corresponding to the device information (step S52). . The power control apparatus 10B determines whether or not the calculated total value is greater than or equal to the reference value (step S54). When the total value is less than the reference value (NO in step S54), power control device 10B instructs power conditioner 2A to output a current corresponding to the total value from storage battery 5A (step S56). . On the other hand, when the total value is equal to or greater than the reference value (YES in step S54), power control device 10B instructs power conditioner 2A to stop the output of current from storage battery 5A (step S58). That is, the power control device 10B instructs the power conditioner 2A not to output current from the storage battery 5A.

In addition, the said process may be performed when the system power supply 6 has not failed.
(Modification)
Although the structure which determines the reference value of consumption current or power consumption with respect to each dwelling unit 9 was demonstrated above, the structure which determines the reference value of consumption current amount (Ah) or power consumption amount (Wh) with respect to each residence 9 It may be.

  Specifically, when the power control device 10 </ b> B (reference value setting unit 111 </ b> B) determines the reference value of the current consumption amount based on the remaining battery level of the storage battery 5, as illustrated in FIG. 12, The reference value is set smaller as the remaining battery level is lower.

  FIG. 12 is a diagram for explaining the relationship between the remaining battery level and the reference value of the current consumption. The relationship between the remaining battery level and the power consumption reference value is also the same as in FIG. When the battery remaining amount of the storage battery 5 is decreasing as time passes (FIG. 12A), as shown in FIG. 12B, the reference value setting unit 111B decreases the reference value of the current consumption amount. Set as follows. For example, the reference value setting unit 111B sets the reference value to 3 Ah when the remaining battery level is 100%, and sets the reference value to 2.4 Ah when the remaining battery level is 80%. Is 50%, the reference value is set to 1.5 Ah. In addition, although FIG. 12 demonstrated the example in which the battery remaining amount of the storage battery 5 and the reference value are proportional, it is not restricted to this, The reference value should just become small, so that the battery remaining amount of the storage battery 5 is small. .

  In addition, the power control device 10 </ b> B accepts an input of a consumption detection value that represents a detection value of the current consumption amount or the power consumption amount of each dwelling unit 9 for each dwelling unit 9. Alternatively, the power control apparatus 10B may calculate the current consumption amount (or power consumption amount) based on the current consumption value received from the current sensor 8 (or the power consumption value received from the power sensor). The power control apparatus 10 </ b> B determines, for each dwelling unit 9, whether the detected consumption value of the dwelling unit 9 is equal to or greater than a reference value for the current consumption amount or the power consumption amount of the dwelling unit 9. When the consumption detection value of the dwelling unit 9 is equal to or higher than the reference value, the power control device 10B gives an instruction to the power conditioner 2 to stop the output from the storage battery 5 associated with the dwelling unit 9.

<Advantages>
According to Embodiment 2, the current (or power) supplied from each storage battery 5 can be limited by providing the reference value according to the current consumption value (or power consumption value) of each dwelling unit 9. Therefore, it becomes possible to use the electric power of the storage battery 5 for a longer time.

[Embodiment 3]
In Embodiment 1, each user of dwelling unit 9A-9C demonstrated the structure which can perform an output request | requirement only with respect to the storage battery 5 linked | related with the own dwelling unit 9. FIG. However, when the storage battery 5A associated with the dwelling unit 9A is in an unusable state, the user of the dwelling unit 9A cannot make an output request to the storage battery 5A.

  For example, if the storage battery 5A becomes unusable when the system power supply 6 is out of power, no power is supplied to the dwelling unit 9A unless power is supplied from another storage battery 5. Therefore, in Embodiment 3, when the storage battery 5 associated with the dwelling unit 9 is in an unusable state, it receives a request from the dwelling unit 9 and receives power from the other storage battery 5 associated with the other dwelling unit 9. A configuration for supplying the power is described.

  Here, the state in which the storage battery 5 cannot be used is a state in which the battery remaining amount of the storage battery 5 is extremely small (for example, the battery remaining amount is several percent or less), a state in which the storage battery 5 is broken, or the like. In addition, when the storage battery 5 is mounted on a moving means such as an electric vehicle, the electric vehicle does not exist at a predetermined place (such as a parking lot for an apartment house or a place reserved exclusively for power supply), and is substantially a storage battery. The state where the power of 5 cannot be used is also included in the state where the storage battery 5 cannot be used.

  In addition, in the following description, although the case where the system power supply 6 has failed is explained, the case where the system power supply 6 has not failed may be used.

<Functional Configuration of Power Control Device 10C>
FIG. 13 is a schematic diagram showing a functional configuration of power control apparatus 10C according to the third embodiment. Referring to FIG. 13, power control device 10 </ b> C includes request input unit 101 </ b> C, consumption value input unit 102 </ b> C, instruction unit 103 </ b> C, output value input unit 104 </ b> C, battery remaining amount input unit 110 </ b> C, and upper limit value setting unit. 120C, arrival time calculation part 121C, and alternative storage battery selection part 122C are included.

  Request input unit 101C, consumption value input unit 102C, and output value input unit 104C are substantially the same as request input unit 101A, consumption value input unit 102A, and output value input unit 104A, respectively. However, the output value input unit 104C sends the output detection value to the instruction unit 103C. Also, the remaining battery level input unit 110C is substantially the same as the remaining battery level input unit 110B. However, the remaining battery charge input unit 110C sends the remaining battery charge of each storage battery 5 to the arrival time calculation unit 121C and the upper limit setting unit 120C.

  The arrival time calculation unit 121C receives the remaining battery level of each storage battery 5 from the remaining battery level input unit 110B. The arrival time calculation unit 121 </ b> C calculates, for each storage battery 5, the time (arrival time) for the battery remaining amount of the storage battery 5 to reach the reference remaining amount value based on the time change amount of the battery remaining amount of the storage battery 5. . With reference to FIG. 14, the calculation method of arrival time calculation part 121C is demonstrated concretely.

  FIG. 14 is a diagram illustrating the time until the battery remaining amount, the time change amount, and the battery remaining amount of the plurality of storage batteries 5 reach the reference remaining amount value. In the example of FIG. 14, it is assumed that the storage battery 5A having the storage battery ID “1” is in an unusable state. Therefore, FIG. 14 shows information related to the remaining battery capacity of the storage batteries 5 with the storage battery IDs “2” to “5”. Note that the remaining battery level of the storage battery 5A in an unusable state is not input to the remaining battery level input unit 110C, or even if it is input, the remaining battery level is the remaining battery level that can use the storage battery (storage battery use (Remaining possible amount)) (for example, less than several percent). Thereby, arrival time calculation part 121C can grasp that storage battery 5A is an unusable state.

  The arrival time calculation unit 121 </ b> C calculates, for each storage battery 5, the time for the remaining battery level to reach the reference remaining level value (here, 0%) based on the remaining battery level and the time change amount of the remaining battery level. . For example, for the storage battery 5B of the storage battery ID “2”, the battery remaining amount is 80%, and the time change amount of the battery remaining amount is 10% / h, so the arrival time is calculated as 8h. Similarly, for the plurality of storage batteries 5 having storage battery IDs “3” to “5”, the arrival times are calculated as 17 h, 16 h, and 8 h, respectively. The arrival time calculation unit 121C sends the arrival time corresponding to each storage battery 5 to the alternative storage battery selection unit 122C.

  Referring again to FIG. 13, alternative storage battery selection unit 122 </ b> C selects storage battery 5 having the longest arrival time among multiple storage batteries 5 as alternative storage battery 5 of storage battery 5 in an unusable state. Considering the example of FIG. 14, the alternative storage battery selecting unit 122 </ b> C uses the storage battery 5 </ b> C having the longest arrival time among the plurality of storage batteries 5 having the storage battery IDs “2” to “5” as the alternative storage battery 5. select. In this case, the alternative storage battery selection unit 122C notifies the instruction unit 103C that the alternative storage battery 5 of the storage battery 5A is the storage battery 5C.

  Based on the output request received from the dwelling unit 9 (specific dwelling unit 9) associated with the storage battery 5 in an unusable state, the instruction unit 103C is configured so that the current or power is output from the alternative storage battery 5. To instruct. Considering the example of FIG. 14, the instruction unit 103 </ b> C is configured to output power or power from the storage battery 5 </ b> C selected as the alternative storage battery 5 based on the output request received from the dwelling unit 9 </ b> A that is the specific dwelling unit 9. Instruct 2C. For example, even if a request is received from the dwelling unit 9A so that the output current of the storage battery 5A is 10A (amperes), the storage battery 5A is in an unusable state, so the instruction unit 103C is an alternative storage battery 5. The power conditioner 2C is instructed to output a current of 10A from a certain storage battery 5C.

  Note that the instruction unit 103C may grasp that the storage battery 5A is in an unusable state by receiving the remaining battery level of each storage battery 5 from the remaining battery level input unit 110C. In this case, when the instruction unit 103C receives an output request from the dwelling unit 9A that is the specific dwelling unit 9, current or power is output from the storage battery 5C instead of the storage battery 5A to the dwelling unit 9A (and the dwelling unit 9C). May be notified. Further, the instruction unit 103C may instruct the power conditioner 2C to actually output current or power from the storage battery 5C when receiving the consent of the dwelling unit 9A (and the dwelling unit 9C) for the notification.

  The upper limit setting unit 120 </ b> C sets the upper limit value of the current amount or the electric energy output from the alternative storage battery 5 in response to the output request of the specific dwelling unit 9. For example, the upper limit value is the amount of current or the amount of power that can be output with a capacity corresponding to a reference ratio (for example, 50%) of the battery capacity in the alternative storage battery 5. Alternatively, the upper limit value is the amount of electric current or the amount of power that can be output with the remaining battery amount corresponding to the reference ratio (for example, 50%) of the remaining battery level in the alternative storage battery 5 before the start of output. The reference ratio is arbitrarily determined by the user. Further, the upper limit value may be a value arbitrarily set by the user or the like (that is, a specific value not considering the battery capacity and the remaining battery capacity of the storage battery 5). The upper limit setting unit 120C notifies the instruction unit 103C of the upper limit value.

  Instructing unit 103C determines whether the amount of power or the amount of current output from alternative storage battery 5 has reached the upper limit value in response to the output request received from specific dwelling unit 9. And when the instruction | indication part 103C judges that the said output electric energy or electric current amount reached | attained an upper limit, the instruction | indication which stops the output from the alternative storage battery 5 based on the output request received from the specific dwelling unit 9 will be given. Give to inverter 2.

  For example, it is assumed that the instruction unit 103 </ b> C instructs the power conditioner 2 </ b> C to output a current of 10 </ b> A from the storage battery 5 </ b> C that is the alternative storage battery 5 in response to an output request from the residence unit 9 </ b> A that is the specific residence unit 9. The upper limit is 10 Ah. In this case, the amount of current output from the storage battery 5C in 1h is 10Ah. Therefore, the instruction unit 103C instructs the power conditioner 2C to stop the output from the storage battery 5C after 1 hour.

<Processing procedure>
A processing procedure of power control apparatus 10C according to the third embodiment will be described. Here, for ease of explanation, it is assumed that the storage battery 5A associated with the dwelling unit 9A is in an unusable state, and the power control device 10C receives an output request (requested value of output current) from the dwelling unit 9A. Will be described.

  FIG. 15 is a flowchart showing a processing procedure of power control apparatus 10C according to the third embodiment. Note that the following steps are realized by the CPU of the power control apparatus 10C executing a program stored in the memory.

  Referring to FIG. 15, power control device 10C determines whether or not the remaining battery level of each storage battery 5 has been received (step S72). When the remaining battery level of each storage battery 5 is not received (NO in step S72), power control device 10C repeats the process of step S72. On the other hand, when the power control device 10C receives the remaining battery level of each storage battery 5 (YES in step S72), the remaining battery level of each storage battery 5 is the reference remaining value (here, 0). Time (arrival time) is calculated (step S74).

  The power control apparatus 10C selects the storage battery 5 having the longest arrival time among the storage batteries 5 as the alternative storage battery 5 (step S76). Here, it is assumed that the alternative storage battery 5 is the storage battery 5C according to the example of FIG. The power control apparatus 10C instructs the power conditioner 2C so that a current corresponding to the output request received from the dwelling unit 9A is output from the storage battery 5C (step S78).

  The power control apparatus 10C determines whether or not the amount of current output from the storage battery 5C has reached the upper limit value in response to the output request of the dwelling unit 9A (step S80). If the amount of current has not reached the upper limit (NO in step S80), power control device 10C repeats the process of step S80. That is, the output of the current from the storage battery 5C according to the output request of the dwelling unit 9A is continued. On the other hand, when the current amount reaches the upper limit value (YES in step S80), power control device 10C causes the power conditioner to stop outputting the current from storage battery 5C in response to the output request of dwelling unit 9A. 2C is instructed (step S82).

<Advantages>
According to the third embodiment, even when the storage battery 5 associated with the dwelling unit 9 is in an unusable state, the other storage battery 5 associated with another dwelling unit 9 in response to a request from the dwelling unit 9. Can be supplied with power. Thereby, for example, when the system power supply 6 has a power outage, the user of the dwelling unit 9 has the power exchanged from the other storage battery 5 even if the storage battery 5 owned by the user is not usable. Can do. Further, even when the system power supply 6 is not out of power, the power from the other storage battery 5 is used without using the power of the system power supply 6, which can contribute to peak cut.

[Embodiment 4]
Embodiment 3 demonstrated the structure which outputs an electric current or electric power from the alternative storage battery 5 according to the output request | requirement from the specific dwelling unit 9 linked | related with the storage battery 5 of an unusable state. In Embodiment 4, when the storage battery 5 associated with the specific dwelling unit 9 is restored from the unusable state to the usable state, the restoration is performed in response to the output request of the dwelling unit 9 associated with the alternative storage battery 5. A configuration for outputting current or power from the storage battery 5 will be described.

  Moreover, in Embodiment 4, the structure which performs the charge process with respect to the electric current amount or electric energy output from the alternative storage battery 5 according to the output request from the specific dwelling unit 9 linked | related with the storage battery 5 of an unusable state is demonstrated. . In the fourth embodiment, it is assumed that the grid power supply 6 is not out of power and the power conditioner 2 is performing a grid operation.

<Functional Configuration of Power Control Device 10D>
FIG. 16 is a schematic diagram showing a functional configuration of a power control device 10D according to the fourth embodiment. Referring to FIG. 16, power control device 10D includes a request input unit 101D, a consumption value input unit 102D, an instruction unit 103D, an output value input unit 104D, a battery remaining amount input unit 110D, and an upper limit value setting unit. 120D, arrival time calculation part 121D, alternative storage battery selection part 122D, and billing processing part 130D are included.

  The request input unit 101D, the consumption value input unit 102D, the output value input unit 104D, the remaining battery level input unit 110D, the upper limit value setting unit 120D, the arrival time calculation unit 121D, and the alternative storage battery selection unit 122D, respectively, The value input unit 102C, the output value input unit 104C, the remaining battery level input unit 110C, the upper limit value setting unit 120C, the arrival time calculation unit 121C, and the alternative storage battery selection unit 122C are substantially the same.

  Based on the remaining battery level of each storage battery 5 received from the remaining battery level input unit 110D, the instruction unit 103D sets the storage battery 5 (in this case, the storage battery 5A) that has been unusable to a usable state. Know that you are back. For example, the instruction unit 103D determines that the storage battery 5A has returned to a usable state when the remaining battery capacity of the storage battery 5A, which has been unusable, is greater than or equal to the remaining usable battery capacity. Based on the output request received from the dwelling unit 9 associated with the alternative storage battery 5, the instruction unit 103D instructs the power conditioner 2 to output current or power from the restored storage battery 5.

  Specifically, when the storage battery 5A is in an unusable state, the instruction unit 103D has a current amount or an electric energy output from the alternative storage battery 5 in response to an output request from the dwelling unit 9A that is the specific dwelling unit 9. Is stored as an information table 600 as shown in FIG.

  FIG. 17 shows information table 600 according to the fourth embodiment. The information table 600 shows the amount of power output from the alternative storage battery 5 in response to an output request from the dwelling unit 9A when the storage battery 5A is in an unusable state. Specifically, as the alternative storage battery 5 of the storage battery 5A, it is shown that the electric energy of 2 kWh, 3 kWh, 2 kWh, and 1 kWh is output from each of the plurality of storage batteries 5 with the storage battery IDs “2” to ID “5”. .

  In addition, the information table 600 indicates the amount of power that should be output by the restored storage battery 5 </ b> A in response to the output request of the dwelling unit 9 associated with the alternative storage battery 5. Specifically, the storage battery 5B with the storage battery ID “2” outputs a power amount of 2 kWh in response to an output request of the dwelling unit 9A that is the specific dwelling unit 9. Therefore, in response to an output request from the dwelling unit 9B associated with the storage battery 5B, it is necessary to output from the storage battery 5A a power amount of 3 kWh obtained by multiplying 2 kWh by a constant X (for example, 1.5). The constant X is arbitrarily set by the manager of the apartment 11 assuming that X ≧ 1. That is, it is necessary to output the storage battery 5A that has returned the amount of power equal to or greater than the amount of power output by the alternative storage battery 5.

  Similarly, the storage battery 5A needs to output an electric energy of 4.5 kWh in response to an output request from the dwelling unit 9C associated with the storage battery 5C with the storage battery ID “3”. The storage battery 5 </ b> A needs to output a power amount of 3 kWh in response to an output request from the dwelling unit 9 associated with the storage battery 5 with the storage battery ID “4”. The storage battery 5A needs to output an amount of power of 1.5 kWh in response to an output request from the dwelling unit 9 associated with the storage battery 5 with the storage battery ID “5”.

  Therefore, for example, the instruction unit 103D instructs the power conditioner 2A to output the amount of power of 3 kWh from the restored storage battery 5A based on the output request received from the dwelling unit 9B associated with the storage battery 5B.

  Referring again to FIG. 16, in another aspect, instructing unit 103 </ b> D sends the current amount or the electric energy output from alternative storage battery 5 to charging processing unit 130 </ b> D in response to the output request from specific dwelling unit 9. Then, billing processing unit 130D performs billing processing for the amount of power or current. Specifically, charging processing unit 130D performs charging processing according to information table 700 shown in FIG.

  FIG. 18 shows information table 700 according to the fourth embodiment. Similarly to the information table 600, the information table 700 includes 2 kWh, 3 kWh, 2 kWh, and 1 kWh of electric power from each of the plurality of storage batteries 5 having the storage battery IDs “2” to ID “5” as the alternative storage battery 5 of the storage battery 5A. Is output. Then, billing processing unit 130D performs billing processing based on the amount of electric power, unit price information (for example, 20 yen / kWh) and constant Y (for example, 1.5). The constant Y is arbitrarily determined by the manager of the apartment 11 assuming that Y ≧ 1.

  For example, as the alternative storage battery 5 of the storage battery 5A, a power amount of 2 kWh is output from the storage battery 5B. Therefore, the billing processing unit 130D calculates 60 yen as the amount charged for the dwelling unit 9A (the user), and performs a payment settlement process so that the amount is paid from the dwelling unit 9A to the dwelling unit 9B. Similarly, the dwelling unit 9A needs to pay 90 yen, 60 yen, and 30 yen to the dwelling units 9 associated with the storage battery IDs “2” to ID “5”, respectively.

<Processing procedure>
A processing procedure of power control device 10D according to the fourth embodiment will be described. Here, for ease of explanation, it is assumed that the storage battery 5A associated with the dwelling unit 9A has returned from an unusable state to a usable state. In addition, an output request (requested value of output power) is received from the dwelling unit 9C associated with the storage battery 5C functioning as the alternative storage battery 5.

  FIG. 19 is a flowchart showing a processing procedure of power control device 10D according to the fourth embodiment. Note that the following steps are realized by the CPU of the power control apparatus 10D executing a program stored in the memory. Here, it is assumed that the grid power supply 6 is not out of power and the power conditioner 2 is performing the grid operation.

  Referring to FIG. 19, power control device 10D determines whether or not storage battery 5A that is in an unusable state has returned to a usable state (step S100). When storage battery 5A is in an unusable state (NO in step S100), power control device 10D repeats the process of step S100. On the other hand, when storage battery 5A returns to a usable state (YES in step S100), power control device 10D calculates the amount of electric power (required electric energy) that should be output from the restored storage battery 5A (step S102). Specifically, since the alternative storage battery 5 is the storage battery 5C, the power control apparatus 10D calculates the amount of power that the storage battery 5A should output in response to the output request of the dwelling unit 9C.

  The power control apparatus 10D determines whether an output request from the dwelling unit 9C has been received (step S104). When the power request has not been received (NO in step S104), power control device 10D repeats the process in step S104. On the other hand, when the power control apparatus 10D receives the output request (YES in step S104), the power control apparatus 10D instructs the power conditioner 2A to output the power corresponding to the output request from the restored storage battery 5A (step S104). S106).

  The power control apparatus 10D determines whether or not the amount of power output from the storage battery 5A in response to the output request of the dwelling unit 9C has reached the necessary power amount calculated in step S102 (step S108). When the output power amount does not reach the required power amount (NO in step S108), power control device 10D repeats the process of step S108. On the other hand, when the output power amount reaches the necessary power amount (YES in step S108), power control device 10D stops the output of power from storage battery 5A in response to the output request of dwelling unit 9C. To the power conditioner 2A (step S110).

  In the above, the power control apparatus 10D may notify the dwelling unit 9C that the storage battery 5A has been restored, and accept an output request for the storage battery 5A from the dwelling unit 9C that has received the notification. Alternatively, the power control apparatus 10D may instruct the power conditioner 2A to preferentially power from the storage battery 5A even when an output request for the storage battery 5C is received from the dwelling unit 9C.

<Advantages>
In Embodiment 4, the dwelling unit 9 that owns (associated with) the alternative storage battery 5 can make an output request to the storage battery 5 that the specific dwelling unit 9 that uses the power of the alternative storage battery 5 owns. Moreover, the dwelling unit 9 that owns the alternative storage battery 5 can also charge a fee according to the amount of power used for the specific dwelling unit 9. Therefore, the dwelling unit 9 has an advantage that the specific dwelling unit 9 uses the power of the alternative storage battery 5.

[Other embodiments]
In embodiment mentioned above, the structure where the dwelling unit 9 and the storage battery 5 were linked | related by 1 to 1 was demonstrated. However, a plurality of storage batteries 5 may be associated with one dwelling unit 9. In this case, the dwelling unit 9 can make an output request to the plurality of storage batteries 5. For example, when the power control device 10 receives an output request for the two storage batteries 5 from the dwelling unit 9, the total of the output request for one storage battery 5 and the output request for the other storage battery 5 is the total output from the dwelling unit 9. It becomes the demand.

  One storage battery 5 may be associated with the plurality of dwelling units 9. The plurality of dwelling units 9 can make an output request to the storage battery 5. For example, when the power control apparatus 10 receives an output request for one storage battery 5 from two dwelling units 9, the sum of the output request for one dwelling unit 9 and the output request for the other dwelling unit 9 is the total for the storage battery 5. This is the output request. Therefore, the power control apparatus 10 instructs the power conditioner 2 so that the current or power corresponding to the total output request is output from the storage battery 5.

  Therefore, it is only necessary that at least one power conditioner 2 is configured to control a plurality of storage batteries 5.

  In the above-described embodiment, the configuration in which one storage battery 5 is connected to one power conditioner 2 has been described. However, the structure by which the some storage battery 5 is connected to the one power conditioner 2 may be sufficient. In this case, the power conditioner 2 includes a bidirectional DC / AC converter 22 and a bidirectional DC / DC converter 24 corresponding to the number of storage batteries 5. One control device 20 may be provided.

  In the above-described embodiment, the configuration in which the power conditioner 2 includes the bidirectional DC / AC converter 22 has been described. However, the power conditioner 2 may include an AC / DC converter and a DC / AC converter instead of the bidirectional DC / AC converter 22.

[Summary]
Embodiments of the present invention can be summarized as follows.

  (1) A power control device 10 that controls power supplied from at least one power conditioner 2 that controls a plurality of storage batteries 5 to a plurality of dwelling units 9 of an apartment 11, and each of the plurality of dwelling units 9 includes a plurality of units. Is associated with at least one of the storage batteries 5. The power control apparatus 10 receives a request input unit 101A that receives an output request regarding the output current or output power of the storage battery 5 associated with the dwelling unit 9 from each of the plurality of dwelling units 9, and the at least one power conditioner 2 And an instruction unit 103A for instructing that the current or power corresponding to the output request received from each of the plurality of dwelling units 9 is output from each of the plurality of storage batteries 5.

  According to the above configuration, the user of each dwelling unit 9 can make an output request to the storage battery 5 associated with the dwelling unit 9. Then, a current or power corresponding to the output request is output from the storage battery 5. Thereby, it becomes possible to supply the electric power from a some storage battery simply and appropriately with respect to the some dwelling unit of an apartment house.

  (2) The request input unit 101 </ b> A receives a request value for the output current of the storage battery 5 or a ratio R of the output current value of the storage battery 5 to the consumption current value of the dwelling unit 9 as an output request related to the output current of the storage battery 5. The request input unit 101 </ b> A receives a request value for the output power of the storage battery 5 or a ratio Rx of the output power value of the storage battery 5 to the power consumption value of the dwelling unit 9 as an output request related to the output power of the storage battery 5.

  According to the above configuration, the user of the dwelling unit 9 can make an output request to the power control apparatus 10 in various forms.

  (3) For each of the plurality of storage batteries 5, the power control device 10 </ b> A includes an output value input unit 104 </ b> A that receives an input of an output detection value that represents a detection value of the output current or output power of the storage battery 5, and the plurality of storage batteries 5. An output value input unit 105 </ b> A that determines whether current or power corresponding to an output request received from each of the plurality of dwelling units 9 is output from each of the plurality of storage batteries 5 based on the output detection value for each Further included. When current or power corresponding to the output request is not output from the storage battery 5, the instruction unit 103 </ b> A gives an instruction to stop the output from the storage battery 5 to the at least one power conditioner 2.

  According to the said structure, when the electric current or electric power according to the output request | requirement from the dwelling unit 9 is not output from the storage battery 5, the output of the storage battery 5 can be stopped. Thereby, abnormality of the storage battery 5 can be discovered quickly. Moreover, since the electric power for which the dwelling unit 9 requested | required is not output, since it will not be considered that it was output from the storage battery 5, it will not give a disadvantage to the user of the said dwelling unit 9. FIG.

  (4) For each of the plurality of dwelling units 9, the power control device 10 </ b> B includes a consumption value input unit 102 </ b> B that receives an input of a consumption detection value representing a current consumption or power consumption detection value of the dwelling unit 9, Each of them further includes a consumption determination unit 112B that determines whether or not the detected consumption value of the dwelling unit 9 is equal to or higher than the reference value of the current consumption or power consumption of the dwelling unit 9. When the consumption detection value of the dwelling unit 9 is equal to or higher than the reference value, the instruction unit 103B gives an instruction to stop the output from the storage battery 5 associated with the dwelling unit 9 to the at least one power conditioner 2.

  According to the said structure, since the electric current (or electric power) supplied from each storage battery 5 can be restrict | limited, it becomes possible to use the electric power of the storage battery 5 for a long time.

  (5) The power control device 10 </ b> B is associated with the storage battery 5 based on the remaining battery level input unit 110 </ b> B that receives input of the remaining battery level of each of the plurality of storage batteries 5 and the remaining battery level of each of the plurality of storage batteries 5. And a reference value setting unit 111B for setting the reference value of the dwelling unit 9 that is provided. The reference value setting unit 111B sets the reference value smaller as the remaining battery capacity of the storage battery 5 is smaller.

  According to the said structure, since the reference value is set in consideration of the battery remaining amount of each storage battery 5, it becomes possible to use the electric power of the storage battery 5 for a longer period.

  (6) For each of the plurality of dwelling units 9, the power control apparatus 10B stores a consumption information storage unit that stores consumption information regarding the current consumption or power consumption of the home appliance for each of the plurality of home appliances that the dwelling unit 9 has. 114B and each of the plurality of dwelling units 9 are consumed by the one or more home appliances based on consumption information of one or more home appliances selected from among the plurality of home appliances that the dwelling unit 9 has. For each of the plurality of dwelling units 9, the total value of the one or more home appliances selected in the dwelling unit 9 is the current consumption or consumption of the dwelling unit 9 It further includes a consumption determination unit 112B that determines whether or not the power is greater than or equal to a reference value. When the total value of the dwelling unit 9 is equal to or greater than the reference value, the instruction unit 103B gives an instruction to stop the output from the storage battery 5 associated with the dwelling unit 9 to the at least one power conditioner 2.

  According to the said structure, the electric current (or electric power) supplied from each storage battery 5 can be restrict | limited in consideration of the electric current consumption (electric power) of the apparatus which the user of the dwelling unit 9 uses. In addition, this makes it possible to use the power of the storage battery 5 for a longer time.

  (7) The power control apparatus 10B includes, for each of the plurality of dwelling units 9, a consumption value input unit 102B that receives an input of a consumption detection value that represents a detected current consumption amount or power consumption amount of the dwelling unit 9, and a plurality of dwelling units 9 further includes a consumption determination unit 112B that determines whether the consumption detection value of the dwelling unit 9 is equal to or greater than a reference value of the current consumption amount or the power consumption amount of the dwelling unit 9. When the consumption detection value of the dwelling unit 9 is equal to or higher than the reference value, the instruction unit 103B gives an instruction to stop the output from the storage battery 5 associated with the dwelling unit 9 to the at least one power conditioner 2.

  According to the said structure, since the electric current (or electric power) supplied from each storage battery 5 can be restrict | limited, it becomes possible to use the electric power of the storage battery 5 for a long time.

  (8) The power control apparatus 10 </ b> C has a remaining battery capacity input unit 110 </ b> C that receives input of the remaining battery capacity of each of the plurality of storage batteries 5, and a time change amount of the remaining battery capacity of the storage battery 5 for each of the plurality of storage batteries 5. The arrival time calculation unit 121C that calculates the arrival time when the remaining battery level of the storage battery 5 is equal to or less than the reference remaining capacity value, and the storage battery 5 having the longest arrival time among the plurality of storage batteries 5 The alternative storage battery selection unit 122C that selects as the alternative storage battery 5 of the unusable storage battery 5 and the instruction unit 103C receive from the specific residence 9 that represents the residence 9 associated with the unavailable storage battery 5 On the basis of the output request, at least one power conditioner 2 is instructed to output current or power from the alternative storage battery 5.

  According to the said structure, the specific dwelling unit 9 can output an electric current (electric power) from the alternative storage battery 5 by making an output request | requirement with respect to the alternative storage battery 5 which is not linked | related with self. In addition, the storage battery 5 that is expected to have the most remaining battery power in the future is selected as the alternative storage battery. Therefore, the remaining battery capacity of the alternative storage battery 5 does not disappear immediately.

  (9) When the amount of power or current output from the alternative storage battery 5 reaches the upper limit in response to the output request received from the specific dwelling unit 9, the instruction unit 103C substitutes based on the output request received from the specific dwelling unit 9 An instruction to stop the output from the storage battery 5 is given to the at least one power conditioner 2.

  According to the said structure, it can prevent that an electric current or electric power is output from the alternative storage battery 5 more than necessary.

  (10) When the unusable storage battery 5 returns to the usable state, the instruction unit 103D returns the current or power based on the output request received from the dwelling unit 9 associated with the alternative storage battery 5. The at least one power conditioner 2 is instructed to output from the storage battery 5.

  According to the said structure, the user of the dwelling unit 9 linked | related with the alternative storage battery 5 can output an electric current or electric power from the restored storage battery 5 by making an output request with respect to the restored storage battery 5.

  (11) The power control device 10D further includes a billing processing unit 130 that performs billing processing on the amount of power or current output from the alternative storage battery 5 in response to the output request received from the specific dwelling unit 9.

  According to the said structure, the user of the dwelling unit 9 linked | related with the alternative storage battery 5 can charge the compensation with respect to the electric current amount (or electric energy) which the alternative storage battery 5 output with respect to the specific dwelling unit 9.

  (12) Power control for controlling a plurality of storage batteries 5, at least one power conditioner 2 that controls the plurality of storage batteries 5, and power supplied from the at least one power conditioner 2 to the plurality of dwelling units 9 of the apartment 11 It is an electric power system provided with the apparatus 10, Comprising: Each of the some dwelling unit 9 is linked | related with at least 1 of the some storage battery 5. FIG. 10 A of electric power control apparatuses with respect to the request input part 101A which receives the output request regarding the output current or output electric power of the storage battery 5 linked | related with the said dwelling unit 9 from each of the some dwelling units 9, and at least 1 power conditioner 2 And an instruction unit 103A for instructing that the current or power corresponding to the output request received from each of the plurality of dwelling units 9 is output from each of the plurality of storage batteries 5.

  According to the above configuration, the user of each dwelling unit 9 can make an output request to the storage battery 5 associated with the dwelling unit 9. Then, a current or power corresponding to the output request is output from the storage battery 5. Thereby, it becomes possible to supply the electric power from a some storage battery simply and appropriately with respect to the some dwelling unit of an apartment house.

  The configuration illustrated as the above-described embodiment is an example of the configuration of the present invention, and can be combined with another known technique, and a part of the configuration is omitted without departing from the gist of the present invention. It is also possible to change the configuration.

  In the above-described embodiment, the processing and configuration described in the other embodiments may be adopted as appropriate.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  2 power conditioner, 3 distribution board, 4,8 current sensor, 5 storage battery, 6 system power supply, 7 AC power line, 9 dwelling unit, 10 power control device, 11 apartment, 20 control device, 22 bidirectional DC / AC converter , 24 Bidirectional DC / DC converter, 71, 72, 73, 75 wiring, 101A to 101D request input unit, 102A to 102D consumption value input unit, 103A to 103D instruction unit, 104A to 104D output value input unit, 105A output Determination unit, 110B, 110C, 110D Battery remaining amount input unit, 111B reference value setting unit, 112B consumption determination unit, 113B device input unit, 114B consumption information storage unit, 115B total value calculation unit, 120C, 120D upper limit value setting unit, 121C, 121D arrival time calculation unit, 122C, 122D alternative storage battery selection unit, 130D Charge processing unit, 500, 600, 700 information table.

Claims (5)

A power control device that controls power supplied to a plurality of dwelling units of an apartment house from at least one power conditioner that controls a plurality of storage batteries,
Each of the plurality of dwelling units is associated with at least one of the plurality of storage batteries,
From each of the plurality of dwelling units, a request input unit that receives an output request related to the output current or output power of the storage battery associated with the dwelling unit,
An instruction unit for instructing the at least one power conditioner to output a current or power corresponding to the output request received from each of the plurality of dwelling units from each of the plurality of storage batteries; Power control device. For each of the plurality of dwelling units, a consumption input unit that receives an input of a consumption detection value representing a detection value of the current consumption or power consumption of the dwelling unit;
For each of the plurality of dwelling units, further includes a consumption determination unit that determines whether the consumption detection value of the dwelling unit is equal to or higher than a reference value of current consumption or power consumption of the dwelling unit,
The said instruction | indication part gives the instruction | indication which stops the output from the said storage battery linked | related with the said dwelling unit to the said at least 1 power conditioner when the said consumption detection value of the said dwelling unit is more than the said reference value. The power control device described in 1. A battery remaining capacity input unit for receiving an input of the remaining battery capacity of each of the plurality of storage batteries;
For each of the plurality of storage batteries, a time calculation unit that calculates a time for the battery remaining amount of the storage battery to reach a reference remaining amount value based on a time change amount of the battery remaining amount of the storage battery;
A selection unit that selects the storage battery having the longest time among the plurality of storage batteries as an alternative storage battery of the storage battery in an unusable state among the plurality of storage batteries;
Based on the output request received from the specific dwelling unit representing the dwelling unit associated with the storage battery in an unusable state, the instruction unit is configured to output the current or power from the alternative storage battery. The power control apparatus according to claim 1, wherein the power control apparatus instructs a power conditioner.   When the storage battery in an unusable state returns to a usable state, the instruction unit returns the current or power based on the output request received from the dwelling unit associated with the alternative storage battery. The power control apparatus according to claim 3, wherein the power control apparatus instructs the at least one power conditioner to output from a storage battery. A plurality of storage batteries;
At least one power conditioner for controlling the plurality of storage batteries;
A power control device for controlling power supplied from the at least one power conditioner to a plurality of dwelling units in an apartment house,
Each of the plurality of dwelling units is associated with at least one of the plurality of storage batteries,
The power control device
From each of the plurality of dwelling units, a request input unit that receives an output request related to the output current or output power of the storage battery associated with the dwelling unit,
An instruction unit for instructing the at least one power conditioner to output a current or power corresponding to the output request received from each of the plurality of dwelling units from each of the plurality of storage batteries; Power system.