JP2015060775A - Maintenance management system for power storage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a maintenance management system of a power storage system capable of validly using a storage battery until a replacement timing by grasping the use state of the storage battery to report a deterioration in the performance of the storage battery, and detecting a deterioration in the performance of the storage battery to accurately grasp the remaining lifetime of the storage battery.SOLUTION: The maintenance management system of a power storage system includes: a storage battery (2); a system control part (3) having a measurement part (31) for measuring the state of the storage battery and a charging/discharging control part (32) for controlling the charging/discharging of the storage battery; a display part (4) for displaying information including the measured data; and restoration means (pulse generation part 5) for restoring storage battery performance, therein the storage battery whose performance has been deteriorated is displayed, and a selection key for setting whether to execute a restoring operation is displayed by the display part (4), and after the execution of the restoring operation is selected, the restoring operation is executed.

Description

  The present invention relates to a maintenance management system for a power storage system, and more particularly to a maintenance management system for a power storage system using a home-use chargeable / dischargeable secondary battery.

  In recent years, it has been proposed to install a storage battery for home use in the event of a power failure of a commercial power source, and a storage system that uses a chargeable / dischargeable secondary battery as a storage battery to store electricity using surplus power at night, etc. It is sought to build.

  Looking at domestic power demand, the amount of power consumption has been increasing year by year due to improvements in convenience of various OA equipment, air conditioning equipment, and other home appliances. Furthermore, the load factor, which is the ratio between the peak power amount and the average power amount, is getting worse year by year.

  Since power companies are required to maintain power generation facilities that can handle peak power, it is effective to effectively use surplus power at night, etc., in order to efficiently operate power generation facilities, and to It is desirable to install a storage battery for each household as equipment corresponding to the above.

  As described above, lead-acid batteries are generally used as secondary batteries that store surplus power and use it as power source power. Lithium ion storage batteries are also used.

  A storage battery represented by a lead battery deteriorates in performance due to long-term use, and the capacity of the battery decreases, and finally it becomes difficult to use. In a lead-acid battery, it is known that lead sulfate is generated on the electrode surface during discharge, and this lead sulfate adheres to the electrode with time and causes performance deterioration.

  When an electricity storage system equipped with lead-acid batteries or lithium-ion batteries is installed at home, these batteries can be used for their full life and maintenance management to maintain appropriate power generation capacity is easy. Is desirable. In addition, since usage conditions and usage environments differ from home to household, it is desirable to perform maintenance management that matches the usage conditions and usage environments.

  The replacement period of storage batteries is generally set for the useful life, although it depends on the operating temperature, and there is a mechanism for suggesting replacement periods to customers through periodic maintenance, or a mechanism for notifying the replacement period .

  For example, a secondary battery that has a measuring unit that measures data of the secondary battery and a memory that stores the measured data, and accurately predicts the remaining life of the secondary battery and grasps the usage state of the secondary battery. Has already been proposed (see, for example, Patent Document 1).

  In addition, a power storage system that includes a storage battery, a measurement unit, and a control unit, and further includes a determination unit that determines advice on energy saving based on a measurement result, and a notification unit that notifies the determined advice has been proposed ( For example, see Patent Document 2).

JP 2007-165040 A JP 2012-115061 A

  By grasping the usage state of a storage battery such as a lead storage battery or a lithium ion storage battery, it becomes possible to detect the performance deterioration of the storage battery and accurately predict the remaining life of the storage battery. Further, it is possible to determine the replacement time of the storage battery based on the expected remaining life, or to arrange a replacement storage battery in advance according to the replacement time.

  However, since it is difficult to manage the storage battery as a replacement part, it is assumed that the storage battery cannot be arranged immediately, and it takes a long time to replace it. Thus, when it takes time to replace the storage battery, it becomes impossible to secure the necessary energy at the required time, which is a problem.

  Therefore, in addition to accurately predicting the life of the storage battery by grasping the usage state of the storage battery, it is desirable that the storage system be able to be used effectively until the replacement work is started. The storage system using a plurality of storage batteries If this is the case, check the usage status of each storage battery, predict the life, notify the storage battery whose performance has deteriorated, determine the replacement period, and keep all secondary batteries effective until the replacement is actually performed. It is desirable to be a storage battery maintenance management system that can be used in the future.

  For this purpose, a storage system that can effectively use the storage battery until a predetermined replacement time requested by the user is preferable in addition to grasping the usage state of the storage battery and predicting and notifying the remaining life of the storage battery. It is desirable that the maintenance management system be capable.

  Therefore, in view of the above-mentioned problems, the present invention recognizes the usage state of the storage battery to notify the deterioration of the storage battery performance, detects the deterioration of the storage battery performance, and accurately grasps the remaining life of the storage battery. It aims at providing the maintenance management system of the electrical storage system which can use a storage battery effectively.

  In order to achieve the above object, the present invention includes a storage battery, a system control unit including a measuring side unit that measures the state of the storage battery, and a charge / discharge control unit that controls charge / discharge of the storage battery, and measured data. A storage unit maintenance management system comprising a display unit for displaying information, further comprising a recovery means for recovering the performance of the storage battery, and displaying on the display unit that the storage battery has degraded performance, A recovery operation selection key for setting whether or not to perform a recovery operation is displayed, and a maintenance management system that executes the recovery operation after selecting the recovery operation is provided.

  According to this configuration, it is possible to know a storage battery whose performance has deteriorated, and a recovery operation for recovering the performance of this storage battery can be executed at the timing requested by the user. And can make arrangements. Further, until the replacement time comes, the storage system can be used effectively by using the storage battery whose performance has been recovered. For this purpose, the storage battery can be used effectively until the replacement time by grasping the usage state of the storage battery and informing the storage battery performance deterioration, and by detecting the storage battery performance deterioration and accurately knowing the remaining life of the storage battery. A system maintenance management system can be obtained. The replacement time can be obtained from information on the performance of the storage battery and the state (usage time, temperature) of the storage battery.

  In addition, the system control unit has a communication unit connectable to the Internet network, the display unit displays the recovery operation selection key, and exchange selection as to whether or not replacement is desired as a notification of storage battery replacement It is preferable to notify the management center via the communication unit when the key is displayed and the exchange is selected.

  Moreover, it is preferable that the notification of the replacement of the storage battery is determined by the system control unit in consideration of the use state of the storage battery in addition to the actual performance of the storage battery.

  Further, it is preferable that the recovery means includes a pulse generation unit that generates a predetermined pulse current. In addition, it can carry out by the method more suitable for the kind of storage battery, such as a means to charge / discharge while controlling current.

  The display unit may be configured to display a telephone number of a contact and a communication selection key for selecting either telephone communication or mail communication. The display unit may be configured to display on a device different from the power storage system. Another device is a TV, tablet, portable device, mobile phone, home monitor, or the like having a communication unit connectable to the Internet network, and may be configured to display on each device and report to the management center.

  According to the present invention, the measuring device is provided with a measuring unit for measuring the state of the storage battery, a display unit for displaying that the storage battery has deteriorated performance, and recovery means for recovering the storage battery performance. Since the recovery operation for recovery can be executed, the storage system can be used effectively by using the storage battery whose performance has been recovered until replacement. For this purpose, the storage battery can be used effectively until the replacement time by grasping the usage state of the storage battery and informing the storage battery performance deterioration, and by detecting the storage battery performance deterioration and accurately knowing the remaining life of the storage battery. A system maintenance management system can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic explanatory diagram illustrating a first embodiment of a maintenance management system for a power storage system according to the present invention. It is a schematic explanatory drawing which shows 2nd Embodiment of the maintenance management system of the electrical storage system which concerns on this invention. It is a flowchart which shows the operation procedure of the maintenance management system of the electrical storage system which concerns on this invention. It is a block diagram which shows the outline | summary of the maintenance management system of the electrical storage system which concerns on this invention.

  Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited thereto. Moreover, the same code | symbol is used about the same structural member, and the overlapping description is abbreviate | omitted suitably. First, a first embodiment of a storage system maintenance management system according to this embodiment will be described with reference to FIG.

<First Embodiment>
The maintenance management system of the power storage system 1 according to the first embodiment shown in FIG. 1 is a maintenance of a power storage system in which a plurality of chargeable / dischargeable storage batteries 2 (for example, three storage batteries 2A, 2B, and 2C) are connected in parallel. It is configured to perform management.

  The maintenance management system of the power storage system 1 includes an ammeter side unit 21 (21A, 21B, 21C) that measures the current value of each storage battery 2 (2A, 2B, 2C), a voltmeter side unit 22, and the state of the storage battery A system control unit 3 including a meter side unit 31 for measuring the charge and a charge / discharge control unit 32 for controlling charge / discharge of the storage battery, a display unit 4 for displaying information including the measured data, and storage battery performance. It is the structure provided with the recovery means (pulse generation part 5) to recover.

  And normal charging / discharging of the some storage battery 2 (2A, 2B, 2C) is performed via the connection terminals 11 and 12. FIG. That is, this power storage system 1 is connected to each household distribution board or a dedicated AC power source via connection terminals 11 and 12 via a device such as a power conditioner that bi-directionally converts direct current to alternating current power. Is done. When the meter unit 31 detects the storage battery 2 with degraded performance, the display unit 4 displays the storage battery 2 with degraded performance and a recovery operation selection key (not shown) for setting whether or not to perform the recovery operation. ) And the recovery operation is selected using the recovery means (pulse generator 5) after the recovery operation is selected.

  For example, when the meter side unit 31 detects the storage battery 2A whose performance has deteriorated, this is displayed on the display unit 4 and a recovery operation selection key for setting whether or not to execute the recovery operation is displayed. When the recovery operation is selected, the switches 13 and 14 are turned on via the charge / discharge control unit 32 and connected to the pulse generator 5, and the storage battery 2A is connected via the connection lines L1A and L2A. Perform charging operation and perform recovery operation.

  Similarly, when the performance deterioration of the storage battery 2B is detected, that effect is displayed on the display unit, and when the recovery operation is selected, the switches 13 and 14 are turned on via the charge / discharge control unit 32 to generate pulses. While connecting to the unit 5, the storage battery 2B is charged through the connection lines L1B and L2B. The same applies to the storage battery 2C.

  With this configuration, it is possible to know the storage battery 2 (2A, 2B, 2C) whose performance has deteriorated, and to perform a recovery operation (pulse generator 5 for recovering the performance of the storage battery 2 (2A, 2B, 2C)). The pulse charge used) can be executed at the timing requested by the user, so that it is not necessary to immediately replace it, and preparation and arrangement for replacement can be performed in advance. Further, until the replacement time comes, the power storage system 1 can be used effectively by using the storage battery 2 (2A, 2B, 2C) whose performance has been recovered. For this purpose, the usage state of the storage battery 2 (2A, 2B, 2C) is grasped to notify the performance deterioration of the storage battery 2 (2A, 2B, 2C), and the storage battery 2 (2A, 2A, 2B, 2C) can be effectively used, and a maintenance management system for the power storage system 1 can be obtained.

  The charging operation performed using the pulse current generated by the pulse generator 5 is, for example, pulse charging performed using a pulse current for turning on and off a predetermined current, and the terminal voltage and the internal voltage of the storage battery 2 to be charged (for example, the storage battery 2A) It is possible to perform a charging operation for supplying a pulse current while checking the resistance. Therefore, by performing such a charging operation, it is possible to reliably recover the battery capacity of the storage battery 2 (for example, the storage battery 2A) whose performance has deteriorated.

  As described above, the system control unit 3 operates the power storage system 1 integrally using a plurality of storage batteries 2 (2A, 2B, 2C), evaluates the performance of each storage battery 2 (2A, 2B, 2C), The necessary display contents are determined and controlled, the detection and display of the storage battery 2 (2A, 2B, 2C) having deteriorated performance, and the recovery operation using the recovery means (pulse generator 5). That is, the system control unit 3 controls all charging / discharging operations of the plurality of storage batteries 2 (2A, 2B, 2C).

  In addition, the system control unit 3 includes a communication unit 33 that can be connected to the Internet network, as will be described later, and displays various information such as usage status of each storage battery, information on performance deterioration, and notification of replacement of the storage battery. 33 has a function of reporting to the management center via 33. It also has a function of receiving information transmitted from the management center and displaying it on the display unit 4.

  As described above, when the replacement of the storage battery 2 (2A, 2B, 2C) is selected, it is configured to notify the management center via the communication unit 33, so that the user can store the storage battery 2 (2A, If the exchange of 2B, 2C) is desired, it can be immediately notified to the management center, and the maintenance management system for the power storage system is highly convenient.

Second Embodiment
Next, a second embodiment of the storage system maintenance management system will be described with reference to FIG. This maintenance management system is configured to perform maintenance and management of a power storage system 1A in which six storage batteries 2 (2A to 2F) are connected in parallel in three rows.

  Even in the maintenance management system of this three-parallel two-fold power storage system 1A, an ammeter side unit 21 (21A to 21F) that measures the current value of each storage battery 2 (2A to 2F) and a voltmeter side unit 22 , 22, a system control unit 3 including a meter side unit 31 that measures the state of the storage battery, and a charge / discharge control unit 32 that controls charge / discharge of the storage battery, and a display unit 4 that displays information including the measured data. And the structure provided with the recovery means (pulse generation part 5) which recovers storage battery performance is the same.

  This power storage system 1A is also connected to each household distribution board or a dedicated AC power source via a connection terminal 11 or 12 via a device that bidirectionally converts direct current such as a power conditioner into alternating current power. . Further, when the total side unit 31 measures the performance of each of the six storage batteries 2 (2A to 2F) and detects the storage battery 2 (2A to 2F) whose performance has deteriorated, this fact is displayed on the display unit 4. When a recovery operation selection key for setting whether or not to perform the recovery operation is displayed and the recovery operation is selected, the switches 13 and 14 are turned on via the charge / discharge control unit 32 to generate a pulse. It is the same to connect to the unit 5 and perform the charging operation of the storage battery 2 (2A to 2F) via each connection line.

  That is, the system control unit 3 of the present embodiment operates the power storage system 1A integrally using a plurality of storage batteries 2 (2A to 2F), evaluates the performance of each storage battery 2 (2A to 2F), and displays necessary. The content determination and display control, detection and display of the storage battery 2 (2A to 2F) whose performance has deteriorated, and the recovery operation using the recovery means (pulse generation unit 5) are managed. That is, the system control unit 3 controls all the charging / discharging operations of the six storage batteries 2 (2A to 2F) in a total of three in parallel.

  In addition, a communication unit 33 is provided in the system control unit 3 so that various information such as usage status of each storage battery, information on performance deterioration, and notification of replacement of the storage battery are reported to the management center via the Internet network. is there.

  Next, the operation procedure of the maintenance management system of the power storage systems 1 and 1A will be described using the flowchart shown in FIG.

  First, at the start of use of the power storage system, the rated power, voltage setting, expected life and the like are input. That is, the input setting of the power storage system is performed (step S1). This input setting may be performed by each user or a service person. Then, normal use (step S2) of the power storage system is executed. In this normal use, charging, standby, and discharging (use of electrical equipment) are repeatedly performed.

  Next, it is confirmed whether or not the amount of power that can be used is reduced (step S3). When it is confirmed that the amount of power is reduced, the battery voltage is checked in the next step S4 in the Y direction. If it is confirmed in step S3 that the amount of power has not decreased, the process proceeds in the N direction, and normal use of the power storage system in step S2 is continued.

  In the case of a lead-acid battery, the decrease in the usable power amount in step S3 can be calculated from the relationship between the ambient temperature and the expected life based on the rated power input in the initial stage and the results of charge / discharge in the previous process. preferable. In the case of a lithium ion storage battery, a method of performing charge / discharge for confirming the capacity periodically and calculating based on the result is preferable. Thereby, this system can manage the information which shows the change degree of the electric energy which can be used of a storage battery over a use period, and becomes a maintenance management system.

  In addition, the battery voltage confirmation in step S4 also confirms that each battery is not short-circuited, overcharged, and not overdischarged. When it is detected in step S4 that the voltage is insufficient, the process proceeds in the Y direction, and the battery internal resistance increase confirmation in step S5 is performed. If the voltage is sufficient, the process proceeds in the N direction and normal use of the power storage system in step S2 is continued.

  When an increase in battery internal resistance is confirmed in step S5, the process proceeds in the Y direction, and a notification of a decrease in capacity of the storage battery in step S6 is given. That is, the fact is displayed on the display unit 4 described above. Moreover, when internal resistance is not increasing, it progresses to N direction and a normal charging / discharging system is continued.

  The increase in internal resistance can be measured from the measured current value and voltage based on the open circuit battery voltage, which is the initial voltage. Moreover, you may measure from the electric current value and voltage measured based on the electric current at the end of charge, or the battery voltage just before the start of discharge. In any case, by measuring the rate of change of the internal resistance of each storage battery at each charge / discharge operation, the degree of change of the internal resistance of the storage battery over the period of use is detected, and this rate of change is set to a predetermined value. If it exceeds, it is judged that the internal resistance has increased. That is, this system is a maintenance management system capable of managing information indicating the tendency of the degree of change in the internal resistance of the storage battery over the period of use.

  Therefore, when it is confirmed that the amount of usable electric power is reduced, the battery voltage is reduced, and the internal resistance is increased, a notification of the capacity reduction of the storage battery in step S6 is notified and whether or not the storage battery is recovered. In other words, the user is prompted to determine whether to regenerate the storage battery (storage battery regeneration determination: step S7).

  If it is determined in step S7 that the storage battery is to be regenerated, the operation proceeds in the Y direction, and the storage battery is regenerated in step S8. This regeneration operation is pulse charging using the pulse generator 5 described above. By performing this pulse charging, the resistance film generated on the electrode surface can be removed and the battery performance can be recovered. That is, the storage battery can be regenerated.

  Further, when it is determined in step S7 that the regeneration of the storage battery is not performed, the process proceeds in the N direction and returns to the normal charge / discharge system. However, in this case, since the internal resistance of the storage battery has already increased, sufficient charging cannot be expected, and it is considered that step S7 is reached in a short time.

  When performing pulse charging, a pulse current is supplied to the storage battery which controls a switching element and performs charging operation. At this time, since it is preferable to perform the charging operation while paying attention to the temperature rise of the storage battery, this power storage system has a thermometer side section for measuring the temperature of each storage battery, and the storage battery is connected via the system control section. Charging control is performed so that the temperature does not exceed a predetermined temperature.

  The pulse charging is, for example, a rectangular wave pulse current, and may be performed using a current having a base current of 2 to 10 times and a duty ratio of 25% to 50%. Further, as described above, the battery capacity can be reliably recovered by performing the charging operation for supplying the pulse current while checking the terminal voltage and the internal resistance of the storage battery to be charged. Even when this regeneration operation is executed, when it is detected that the battery operates only for a short time during charging or discharging, a notification of replacement of the storage battery is made.

  That is, when a decrease in the charging power of the storage battery is detected in step S9, the process proceeds in the Y direction and the storage battery replacement notification in step S10 is executed. If a decrease in the charging power of the storage battery is not detected in step S9, the process proceeds in the N direction and the normal charge / discharge system is continued. In addition to the actual performance of the storage battery, the notification of the replacement of the storage battery is determined by the system control unit 3 in consideration of the use state of the storage battery. With this configuration, the replacement time is determined based on the usage status of the storage battery, so it is possible to predict the exact replacement time of the storage battery according to the predicted battery capacity, and the storage battery is replaced at an ideal timing. can do.

  The user determines whether or not to replace the storage battery (step S11), and the user who determines that the replacement is necessary requests replacement (step S12). For this request, it is possible to employ a telephone request method by displaying a customer dial of a storage battery manufacturer or a network arrangement method using a network (Internet network) or the like.

  When the replacement of the storage battery is requested in step S12, the storage battery is replaced in step S13. This storage battery replacement can be performed by each user, but is more preferably performed by a service person.

  This is because it is required to set and input items such as rated power, voltage setting, and expected life at the beginning of storage battery use. This is because the necessary initial setting is preferably performed by a skilled service person.

<Third Embodiment>
Next, the maintenance management system of the power storage systems 1 and 1A according to the present invention will be described as a third embodiment with reference to FIG. 4 as a third embodiment. FIG. 4 is a block diagram showing an overview of the maintenance management system for the power storage system according to the present invention, and shows the procedure from notification of replacement of the storage battery to replacement.

  As shown in FIG. 4, the maintenance management system according to the present embodiment includes a communication unit 33 that can be connected to the Internet network 8, and the management center 9 via the communication unit 33 and the Internet network 8. It is possible to communicate with. Then, when the notification of storage battery replacement is displayed in step S10 described above, information for notifying that this notification has been displayed is communicated to the management center 9 via the Internet network 8 (notification confirmation step S20).

  Then, the user's response to the storage battery replacement notification is confirmed, and the confirmation of the correspondence method of telephone communication or mail transmission is performed (step S21). In other words, the telephone number of the contact and a communication selection key for selecting either telephone communication or mail communication are displayed on the display unit 4, and the user selects them. If nothing is selected here, a safety problem may occur and a legal problem may also occur. Therefore, it is preferable to display this fact on the display unit 4. Moreover, the structure which reports this state to a management center may be sufficient.

  The storage battery in which the performance deterioration is confirmed is selected to be replaced or to be removed. That is, the display unit 4 indicates that the storage battery has deteriorated performance, and a selection key for selecting whether to replace or request removal is displayed, and the user selects one of them. Then, when the replacement request in step S22 is selected, this is communicated to the management center 9 via the Internet network 8, and the management center enters a replacement procedure for preparing and replacing a new storage battery. Then, the replacement work in step S24 is performed and the work is completed (step S26).

  Further, when the removal request in step S23 is selected, this is communicated to the management center 9 via the Internet network 8, and the management center side contacts the collection company and enters the collection procedure. Then, the collection operation in step S25 is performed and the operation is completed (step S26).

  The above-described display unit 4 displays an LED lighting display unit that indicates the operation status of the power storage systems 1 and 1A and the performance of each storage battery 2, and each selection key and work content for determination, and other information. It is preferable to provide a liquid crystal display unit that displays the operating status and necessary items. In addition, an audio signal such as a buzzer sound may be output, and it is possible to perform a combination of display that causes an indoor LED light to flash remotely.

  In addition to displaying on the display unit 4, a display such as a decrease in the amount of usable electric power is displayed on the remote control via the communication unit 33 described above, or on a TV or tablet terminal that can be connected to the Internet network. Or you may.

  The storage battery 2 described above is composed of a chargeable / dischargeable secondary battery such as a lead storage battery or a lithium ion storage battery. Moreover, these lead acid batteries are preferable because the battery capacity can be easily recovered by pulse charging using a pulse current.

  As described above, the means for solving the problem corresponding to the first aspect of the present invention includes the storage battery 2, the meter-side unit 31 that measures the state of the storage battery 2, and the charge / discharge control unit 32 that controls charging / discharging of the storage battery 2. And a display unit 4 for displaying information including measured data, and a storage management system for the power storage system 1, 1 </ b> A, and recovery means for recovering the storage battery performance (Pulse generation unit 5), and the display unit 4 displays that the storage battery 2 has deteriorated performance, and displays a recovery operation selection key for setting whether or not to perform the recovery operation. This is a maintenance management system that performs a recovery operation (pulse charging using the pulse generator 5) after it is selected to be performed. The effect corresponding to this claim 1 is that the storage battery 2 whose performance has deteriorated can be known, and the recovery operation for recovering the performance of the storage battery 2 can be executed at the timing requested by the user. It is possible to make preparations and arrangements for replacement in advance. Further, until the replacement time comes, the power storage systems 1 and 1A can be used effectively by using the storage battery 2 whose performance has been recovered. Therefore, the storage battery 2 is effectively used until the replacement time by grasping the usage state of the storage battery 2 and informing the performance deterioration of the storage battery 2 and detecting the performance deterioration of the storage battery and accurately grasping the remaining life of the storage battery. The maintenance management system of the electrical storage system 1 and 1A which can be used can be obtained.

  Means for solving the problem corresponding to claim 2 is that the system control unit 3 has a communication unit 33 connectable to the Internet network 8, and the display unit 4 sets whether or not to execute the recovery operation. In addition to displaying an operation selection key, a replacement selection key indicating whether or not replacement is desired is displayed as a notification of replacement of the storage battery. When the replacement is selected, this is notified to the management center 9 via the communication unit 33. It is to report. The effect corresponding to claim 2 is that it is possible to immediately notify the management center 9 when the user wishes to replace the storage battery 2, so that the maintenance management system of the power storage system is highly convenient.

  A means for solving the problem corresponding to claim 3 is that the notification of replacement of the storage battery is determined by the system control unit 3 in consideration of the usage state of the storage battery 2 in addition to the actual performance of the storage battery 2. The effect corresponding to claim 3 is that the replacement time is determined based on the usage status of the storage battery 2, so that the accurate replacement time can be predicted and the storage battery 2 can be replaced at an ideal timing. .

  A means for solving the problem corresponding to claim 4 is to have a pulse generator 5 for generating a predetermined pulse current as a recovery means. The effect corresponding to the fourth aspect is that pulse charging can be performed using the pulse current generated by the pulse generator 5, so that pulse charging can be performed using a pulse current for turning on and off a predetermined current. Further, the battery capacity can be reliably recovered by performing a charging operation for supplying a pulse current while checking the terminal voltage and internal resistance of the storage battery to be charged.

  Means for solving the problem corresponding to claim 5 is that the display unit 4 displays a telephone number of a contact and a communication selection key for selecting either telephone communication or mail communication. The effect corresponding to claim 5 is that the user can select a desired communication method, so that the user can use the storage system maintenance management system that is easy to use.

  As described above, according to the present invention, the use state of the storage battery is grasped and the performance deterioration of the storage battery is notified to the user. Even when the battery is replaced, it is possible to obtain a maintenance management system for the power storage system that can effectively use the storage battery until the replacement time expected depending on the use situation.

  For this reason, the storage system maintenance management system according to the present invention can easily find a storage battery with deteriorated performance, and even if a storage battery with deteriorated performance appears once, the appropriate power generation capacity until the expected replacement time depending on the use situation It can be suitably used for a maintenance management system of a power storage system that is required to maintain the power.

DESCRIPTION OF SYMBOLS 1, 1A Power storage system 2 (2A-2F) Storage battery 3 System control part 4 Display part 5 Pulse generation part 8 Internet network 9 Management center 21 Ammeter side part 22 Voltmeter side part 31 Meter side part 32 Charging / discharging control part 33 Communication Part

Claims (5)

A storage battery, a system control unit that includes a meter side unit that measures the state of the storage battery, and a charge / discharge control unit that controls charge / discharge of the storage battery, and a display unit that displays information including measured data. A storage system maintenance management system,
Further, a recovery means for recovering the storage battery performance is provided, the recovery unit displays a recovery operation selection key for setting whether or not the recovery operation is executed, and displays the recovery unit on the display unit. A maintenance management system for a power storage system, wherein the maintenance management system executes a recovery operation after an operation is selected. The system control unit has a communication unit connectable to the Internet network, the display unit displays the recovery operation selection key, and an exchange selection key indicating whether or not replacement is desired as a storage battery replacement notification. The maintenance management system for a power storage system according to claim 1, wherein when the display and the replacement are selected, the management center is notified via the communication unit. The storage management system for a power storage system according to claim 2, wherein the notification of the replacement of the storage battery is determined by the system control unit in consideration of the use state of the storage battery in addition to the actual performance of the storage battery. The maintenance management system for a power storage system according to any one of claims 1 to 3, further comprising: a pulse generator that generates a predetermined pulse current as the recovery means. The power storage system maintenance according to any one of claims 1 to 4, wherein the display unit displays a telephone number of a contact and a communication selection key for selecting telephone communication or mail communication. Management system.

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