JP2006078045A - Air conditioner remote control device - Google Patents

Abstract

[PROBLEMS] To reduce the maximum power demand so that the suction temperature at each air conditioner installation location does not become uneven without requiring an expensive watt-hour meter with a transmitter.
SOLUTION: The total power consumption calculated by the power consumption calculating means 7 according to the rated power consumption of the air conditioner 2 inputted by the power input means 4 and the operation time of each of the compressor and the blower is the target power input means. In accordance with the control priority determined in the order of the suction temperature by the priority determination means 6 so that the power is less than or equal to the target power input by 5, the power adjustment means 8 sequentially turns the plurality of air conditioners 2 on every predetermined time. By starting / stopping or controlling the capacity, it is possible to reduce the maximum power demand so that the suction temperature at each installation location of the air conditioner 2 does not become uneven without requiring the installation of an expensive electricity meter with a transmitter. it can.
[Selection] Figure 1

Description

  The present invention relates to a remote control device for an air conditioner used for air conditioning control of a building or the like.

Conventionally, as a remote control device for this type of air conditioner, for example, there is one described in FIG. 2 (see Patent Document 1). In FIG. 2, a pulse signal input unit 104 that inputs a pulse signal from a watt-hour meter 109 with a transmission device with respect to the electric energy via a signal line 111, power calculation means 105 that calculates power from the pulse signal, and this power calculation A parallel / serial conversion means 106 that converts the signal of the means 105 into a serial signal and converts a serial control signal from the central apparatus 101 into a parallel signal; a signal from the parallel / serial conversion means 106 and a control signal from the central apparatus 101 A plurality of terminals including a serial signal input / output unit 107 that inputs / outputs the control signal and a control signal output unit 108 that controls the air conditioner 110 by inputting a control signal from the central apparatus 101 via the parallel / serial conversion means 106. The terminal 103 is connected to the central apparatus 101 via the transmission line 102, and the central apparatus 1 1 was aggregate power received the serial signal of the power calculating unit 105 from the terminal 103 issues a control command of an air conditioner 110.
JP 62-22950 A

  However, in the conventional configuration, in order to reduce the maximum demand power, the remote control device controls the air conditioner 110 to be equal to or less than the target power based on the power measurement value from the power calculation unit 105. . For this reason, an expensive watt-hour meter 109 with a transmitter is necessary, and the signal line 111 from the watt-hour meter with transmitter 109 to the terminal 103 and the wiring work of the signal line 111 are required. .

  The present invention solves the above-described conventional problems, does not require the installation of an expensive watt-hour meter with a transmitter, and reduces the maximum power demand so that the suction temperature at each air conditioner installation location does not become uneven. An object of the present invention is to provide a remote control device for an air conditioner that can be used.

  In order to solve the above-mentioned conventional problems, the remote control device for an air conditioner according to the present invention calculates the total power consumption based on the rated power consumption of each air conditioner and the operation time of each of the compressor and the blower. Power calculation means, priority determination means for determining control priority based on the suction temperature for each air conditioner, and power adjustment means for adjusting the total power consumption of the air conditioner are provided. The air conditioner start / stop or capacity control is performed at predetermined time intervals according to the control priority so that the power consumption is equal to or less than the total target power.

  This measures the power consumption of the air conditioner without using a watt-hour meter with a transmitter, and keeps the power consumption of the air conditioner below the target power while monitoring the suction temperature at each air conditioner installation location. It is.

  The remote control device for an air conditioner of the present invention does not require an expensive watt-hour meter with a transmission device and a signal line from the watt-hour meter with a transmission device to the remote control device, and its wiring work, The maximum power demand can be reduced so that the suction temperature is not uneven.

  The first invention is based on the power input means for inputting the rated power consumption of a plurality of air conditioners, the output of the power input means, and the operating time of each compressor and blower for each air conditioner. Power consumption calculating means for calculating the total target power of the air conditioner, priority determining means for determining the control priority based on the suction temperature for each air conditioner, and power consumption Power adjustment means for adjusting the total power consumption of the air conditioner based on the outputs of the calculation means, the target power input means and the priority determination means, and the power adjustment means is configured so that the total power consumption of the air conditioner is the total target The power consumption of the air conditioner is measured without using a watt-hour meter with a transmitter by performing on / off or capacity control of the air conditioner at predetermined intervals according to the control priority so that the power is less than or equal to the power. For each harmonic machine installation location The power consumption of the air conditioner can be kept below the target power while monitoring the penetration temperature. The expensive watt-hour meter with transmitter and the signal line from the watt-hour meter with transmitter to the remote controller and its wiring work Therefore, the maximum power demand can be reduced so that the suction temperature at each air conditioner installation location does not become uneven.

  In the second invention, in particular, by making the target power input means of the first invention capable of inputting the total target power every predetermined period, the target power can be set every predetermined period, and throughout the year. Running costs can be reduced.

  In the third invention, in particular, the target power input means of the first invention can input the total target power and the safety factor for the total target power, so that the safety factor in the target power can be set. Even in the event of sudden power load fluctuations, power can be reduced without exceeding the maximum amount of power.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a block diagram common to the remote control device for an air conditioner according to Embodiments 1 to 3 of the present invention. In FIG. 1, the remote control device 1 includes a power input unit 4, a target power input unit 5, a priority determination unit 6, a power consumption calculation unit 7, and a power adjustment unit 8.

  About the remote control apparatus of the air conditioner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The power input means 4 inputs the rated power consumption (eg, 10 kW, 20 kW,..., 10 kW) of a plurality of air conditioners 2A, 2B,. The target power input means 5 inputs target power (for example, 100 kW) that can be used to reduce the maximum power consumption. The power consumption calculation means 7 detects the suction temperature and the set temperature for each air conditioner 2 via the signal line 3, and calculates the power consumption correction coefficient (for example, 0.9, 1) from the temperature difference between the suction temperature and the set temperature. 0.0, 1.1) is selected, and the total power consumption according to the operation state of the air conditioner 2 and the operation time of the compressor and the blower is calculated (example: 110 kW). The priority determination means 6 detects the suction temperature of each air conditioner 2 via the signal line 3 and automatically adjusts the air conditioning in order from the lowest suction temperature during the cooling operation and from the highest suction temperature during the heating operation. The control priority of the machine 2 is determined (example: 2A = high priority, 2B = low priority,..., 2n = medium priority). A plurality of power adjustment means 8 are provided via the signal line 3 in the order of control priority determined by the priority determination means 6 so that the total power consumption during operation (example: 110 kW) is equal to or less than the target power (example: 100 kW). The start / stop or capacity control signal is sent to the air conditioner 2 and the start / stop or capacity control is performed sequentially every predetermined time. Thereafter, this operation is repeated.

  As described above, in the present embodiment, the total power consumption corresponding to the rated power consumption for each of the plurality of air conditioners 2 input by the power input means 4 and the operation time of the compressor and the blower is consumed. A plurality of power adjustment units 8 calculate power according to the control priority determined by the priority determination unit 6 in order of the suction temperature so as to be equal to or lower than the target power input by the target power input unit 5. The power consumption of the air conditioner 2 is measured without using a watt-hour meter with a transmitter by sequentially starting and stopping the air conditioner 2 at predetermined time intervals or performing capacity control, and for each installation location of the air conditioner 2. The power consumption of the air conditioner 2 can be kept below the target power while monitoring the suction temperature, and the expensive watt-hour meter with a transmitter and the watt-hour meter with a transmitter that measure the power of a plurality of air conditioners 2 Remote control from Without requiring signal line up device 1 and the wiring work can be suction temperature for each location of the air conditioner 2 to reduce the maximum demand power so as not uneven.

  The input to the power input means 4 and the target power input means 5 may be an input means having a screen and any one of a key input means, a mouse input means, and a touch panel input means in addition to a personal computer. Moreover, the power input means 4 shall be capable of inputting a plurality of rated power consumptions according to the operating state of the air conditioner 2 (eg: for cooling operation = 10 kW, for heating operation = 5 kW).

(Embodiment 2)
A remote control device for an air conditioner according to Embodiment 2 of the present invention will be described with reference to FIG. In the present embodiment, the target power input means 5 inputs a plurality of target powers that can be used for reducing the maximum demand power for each period (e.g., January to March = 80 kW, April to May). = 30 kW, June to September = 100 kW, October to December = 40 kW).

  As described above, the power consumption calculation means 7 calculates the sum of the rated power consumption for each of the plurality of air conditioners 2 input by the power input means 4 and the power consumption according to the operation time of each of the compressor and the blower. The plurality of air conditioners 2 are adjusted by the power adjustment means 8 according to the control priority determined in the order of the suction temperature by the priority determination means 6 so as to be equal to or less than the target power for each period input by the target power input means 5. By sequentially starting and stopping or controlling the capacity every predetermined time, the target power can be set for every predetermined period, and the running cost can be reduced throughout the year.

(Embodiment 3)
A remote control device for an air conditioner according to Embodiment 3 of the present invention will be described with reference to FIG. In the present embodiment, the target power input means 5 can input a target power that can be used to reduce the maximum demand power and a safety factor (%) for the target power (eg, safety factor = 20%).

  As described above, the power consumption calculation means 7 calculates the sum of the rated power consumption for each of the plurality of air conditioners 2 input by the power input means 4 and the power consumption according to the operation time of each of the compressor and the blower. Control priority determined in order of the suction temperature by the priority determination means 6 so as to be equal to or less than the target power (80 kW) obtained by multiplying the target power (100 kW) input by the target power input means 5 by the safety factor (20%) In response to this, the power adjustment means 8 sequentially starts / stops or controls the capacity of the plurality of air conditioners 2 every predetermined time, so that the safety factor at the target power can be set and a sudden power load fluctuation occurs. Even in this case, power can be reduced without exceeding the maximum amount of power.

  As described above, the remote control device for an air conditioner according to the present invention does not require an expensive watt-hour meter with a transmitter for measuring the power of a plurality of air conditioners, and sucks in each air conditioner installation location. Since the maximum power demand can be reduced so that the temperature does not become uneven, it can be applied not only to large buildings with many air conditioners but also to small tenant buildings and stores.

The block diagram of the remote control apparatus of the air conditioner in Embodiment 1, 2, and 3 of this invention Block diagram of a conventional air conditioner remote control device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Remote control apparatus 2 Air conditioner 3 Signal line 4 Power input means 5 Target power input means 6 Priority determination means 7 Power consumption calculation means 8 Power adjustment means

Claims (3)

Power input means for inputting the rated power consumption of a plurality of air conditioners, power consumption for calculating the total power consumption based on the output of the power input means and the operating time of each compressor and blower for each air conditioner Calculation means, target power input means for inputting the total target power of the air conditioner, priority determination means for determining control priority based on the suction temperature for each air conditioner, the power consumption calculation means, and the Power adjustment means for adjusting the total power consumption of the air conditioner based on the output of the target power input means and the priority determination means, and the power adjustment means is configured so that the total power consumption of the air conditioner is equal to the total target power. A remote control device for an air conditioner that performs start / stop or capacity control of the air conditioner at predetermined time intervals in accordance with the control priority so as to be as follows. The remote control apparatus for an air conditioner according to claim 1, wherein the target power input means is configured to be able to input total target power every predetermined period. The remote control apparatus for an air conditioner according to claim 1, wherein the target power input means is capable of inputting a total target power and a safety factor for the total target power.

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