JP5628737B2 - Air conditioning system activation method and air conditioning system activation apparatus - Google Patents

Description

  The present invention includes a plurality of air conditioners including a prime mover that drives a compressor, and a heat pump circuit including the compressor, the first heat exchanger, the expansion valve, and the second heat exchanger. The present invention relates to an air conditioning system activation method and an air conditioning system activation apparatus.

  The air conditioning system as described above includes, for example, a plurality of air conditioners in a building such as a condominium or a building having a plurality of air conditioning target locations, and each air conditioning device is configured to air-condition each air conditioning target location. Each of the plurality of air conditioners drives the compressor with an engine as a prime mover, and performs air conditioning operations such as cooling operation and heating operation with a heat pump circuit. Each of the plurality of air conditioners is configured to receive power supply from the commercial system, and by supplying power from the commercial system to the starter motor and starting the engine, the air conditioner is started and air conditioning is performed. I try to drive.

As such an air conditioner, not only a compressor but also a generator to which a generator is connected is also known, and in the case with this generator, the compressor and the generator are generated by the engine. The air-conditioning operation is performed while driving both the machine and the power generator (see, for example, Patent Document 1).
The air conditioner described in Patent Document 1 includes a power storage device capable of storing power from a commercial system and power generated by a generator, and can receive power from the commercial system due to a power failure or the like. If it is not possible, the power stored in the power storage device is supplied to the starter motor, the engine is started by the starter motor, and the air conditioner is started.

JP 2009-236417 A

For example, in a building provided with a plurality of air conditioners, when it is not possible to receive power supply from a commercial system due to a power failure or the like, it is required to activate the plurality of air conditioners to perform an air conditioning operation.
Therefore, in the apparatus described in Patent Document 1, by providing a plurality of air conditioners equipped with a generator and a power storage device, a plurality of air conditioners can be supplied even when power cannot be supplied from a commercial system due to a power failure or the like. Each of the devices is activated to perform air conditioning operation.

  However, in the device described in Patent Document 1, each of the plurality of air conditioners must be provided with a generator and a power storage device, which increases costs.

  The present invention has been made paying attention to such a point, and its purpose is to install a plurality of air conditioners without causing an increase in cost even when power cannot be supplied from a commercial system due to a power failure or the like. It is in the point which provides the starting method of the air-conditioning system which can be started and air-conditioned, and the starting device of an air-conditioning system.

In order to achieve this object, a method for starting an air conditioning system according to the present invention includes a prime mover that drives a compressor, the compressor, a first heat exchanger, an expansion valve, and a second heat exchanger. In the method of starting an air conditioning system provided with a plurality of air conditioners having a heat pump circuit and a starting motor for starting the prime mover,
As the air conditioner, a first air conditioner including a power storage device in which the compressor and a generator are connected to the prime mover and capable of storing power from a commercial system and power generated by the generator, and the power storage device There is a second air conditioner that does not have
The power generated by the generator in the first air conditioner can be freely supplied to the starter motor in the second air conditioner,
In the first air conditioner , when the power supply from the commercial system cannot be received, the power stored in the power storage device is supplied to the starter motor and the generator is connected to the starter motor. Performing the first step of starting the prime mover and starting the first air conditioner;
Next, in the second air conditioner, the power generated by the generator in the first air conditioner is supplied to the starter motor, the prime mover is started by the starter motor, and the second air conditioner is started. the second step had a row,
Prior to performing the second step, the prime mover in the second air conditioner to be activated in the second step with the power generation surplus of the generator in the first air conditioner activated in the first step. A determination step is performed to determine whether or not the starting power necessary for starting the engine can be covered, and the determination step determines that the starting power can be covered by the remaining power generation. If the determination step determines that the starting power cannot be covered by the power generation surplus, the power generation surplus increase step for increasing the power generation surplus is performed, and then the determination step is performed again. There is a point.

  According to the start-up method of the present invention, when the power supply from the commercial system cannot be received due to a power failure or the like, the start motor uses the power stored in the power storage device by performing the first step. The prime mover can be started to start the first air conditioner. Thus, by starting the first air conditioner, the first air conditioner can perform the air conditioning operation while generating power. Therefore, by performing the second step, it is possible to start the second air conditioner by starting the prime mover with the starting motor in the second air conditioner using the generated power of the generator in the first air conditioner, Air conditioning operation can be performed by the second air conditioner. Therefore, by performing in the order of the first step and the second step, when it is not possible to receive power supply from the commercial system due to a power failure or the like, the first air conditioner and the second air conditioner are started in order and the first air conditioner is activated. Air conditioning operation can be performed in each of the apparatus and the second air conditioner. And the electrical storage apparatus with which a 1st air conditioner is equipped should just store the electric power required in order to start a motor | power_engine with the starting motor in the 1st air conditioner, and can make the capacity | capacitance as small as possible. In addition, since the second air conditioner does not include the power storage device, it is possible to reduce the cost and simplify the system configuration. Therefore, according to the start-up method according to the present invention, even when power cannot be supplied from the commercial system due to a power failure or the like, a plurality of air conditioners can be started and air-conditioned without causing an increase in cost. it can.

When the second air conditioner is started in the second step, since inrush power of the starter motor is generated, a large amount of power is transiently required. Therefore, the generated power of the generator in the first air conditioner is used. In order to start the second air conditioner, a large amount of generated power is required. Therefore, for example, if the power generated by the generator in the first air conditioner is supplied to the power consuming device in the first air conditioner, the power supplied to the device is reduced, and the operation of the first air conditioner is reduced. May become unstable.
Therefore, according to the activation method according to the present invention, before performing the second step, the power generation surplus of the generator in the first air conditioner activated in the first step, the second activation target 2 When a determination step is performed to determine whether or not the starting power necessary to start the motor in the air conditioner can be covered, and the determination step determines that the starting power can be covered by the power generation surplus The second step is performed. Here, for example, the value obtained by subtracting the current generated power from the rated generated power of the generator when the prime mover in the first air conditioner is operated at the rating multiplied by the number of the first air conditioners is generated. It can be made available. As a result, when starting the second air conditioner, even if more power is required due to the inrush power of the starter motor, etc., the power can be supplied by the power generation surplus of the generator in the first air conditioner. Since the second air conditioner is activated after confirmation, the second air conditioner can be activated while appropriately preventing the operation of the first air conditioner from becoming unstable. Further, according to the start-up method according to the present invention, when it is determined that the starting power cannot be covered by the power generation surplus by the determination step, the power generation surplus increasing step for increasing the power generation surplus is performed, and then the determination is performed again. Doing the steps. Accordingly, it is confirmed that the power generation surplus can be increased in order to start the second air conditioner without increasing the power generation surplus, and the starting power can be covered by the increased power generation surplus. 2 The air conditioner can be activated.

  In the method for starting an air conditioning system according to the present invention, the first air conditioner is configured such that the compressor is connected to the prime mover via a clutch, and the operation of the prime mover is maintained as the power generation surplus increasing step. One of a clutch OFF step of disconnecting the clutch and disconnecting the compressor from the prime mover, and a supply power reduction step of reducing the supply power for supplying the generated power of the generator to the power consuming device in the first air conditioner Alternatively, it is preferable to perform both.

  That is, by performing the clutch OFF step, the clutch is disconnected and the compressor is disconnected from the prime mover, so that the prime mover is operated in a state where only the generator is driven by the prime mover. As a result, the power generated by the generator can be increased without consuming the driving force of the prime mover to drive the compressor, and the power generation surplus can be increased appropriately. Further, by performing the supply power reduction step, the supply power for supplying the generated power of the generator to the power consuming device in the first air conditioner is reduced, so that the power generation surplus can be increased appropriately.

  In the method for starting an air conditioning system according to the present invention, a plurality of the second air conditioners are provided, a priority order for starting the plurality of the second air conditioners is set, and the power generation surplus increasing step is performed. In the second step, when the second air conditioner having a lower priority than the second air conditioner to be activated is already activated, the operation for stopping the operation of the second air conditioner having the lower priority It is preferable to perform a stop step.

  That is, when a plurality of second air conditioners are provided, for example, the priority order for starting the plurality of second air conditioners is set according to the importance of the air-conditioning target location. Therefore, it is desirable that the second air conditioner with higher priority is given priority as the order of activation. Therefore, when the second air conditioner having a lower priority than the second air conditioner to be activated is already activated in the second step, the operation stop step for stopping the operation of the second air conditioner having the lower priority. As a result, the operation of the second air conditioner having a lower priority than the second air conditioner to be activated is stopped and the power generation surplus is increased. Thereby, it is possible to increase the power generation surplus while keeping the set priority.

  In the start-up method of the air conditioning system according to the present invention, the first air conditioner has the compressor connected to the prime mover via a clutch, and heats the refrigerant supplied to the compressor by the heat pump circuit. A compressor heater is provided, and when starting the first air conditioner in the first step, the electric power stored in the power storage device is supplied to the starter motor, the clutch is disconnected, and the motor A starting step of starting the prime mover to which the generator is connected by the starter motor in a state where the compressor is disconnected; and driving the generator by the prime mover to generate electric power generated by the generator in the compressor heater Or the electric power stored in the power storage device is supplied to the compressor heater, and the refrigerant is supplied to the compressor by the heat pump circuit. It is preferable to perform a heating step of heating, and then perform an operation step of putting the clutch into place and connecting the compressor to the prime mover, and driving the compressor by the prime mover to activate the heat pump circuit. .

  By performing the starting step, the prime mover can be started by the starting motor using the electric power stored in the power storage device. When starting the prime mover, the clutch is disconnected to disconnect the compressor from the prime mover, and the prime mover is started with only the generator driven by the prime mover. Thereby, while the compressor is stopped, the prime mover can be started to generate power, and the generated power of the generator can be increased without consuming the driving force of the prime mover to drive the compressor. By performing the heating step, the refrigerant supplied to the compressor by the heat pump circuit can be heated by the compressor heater using the power generated by the generator or the power stored in the power storage device. Thereby, even if the temperature of the refrigerant | coolant which remains in the inside of a compressor or the periphery of a compressor falls and the refrigerant | coolant is in a liquid state, the refrigerant | coolant can be heated and can be made into a gaseous state. By performing the operation step, it is possible to perform the air-conditioning operation by putting the clutch and connecting the compressor to the prime mover and driving the compressor with the prime mover to activate the heat pump circuit.

  As described above, when the compressor is driven by the prime mover in the operation step by performing the start step and the heating step, and then performing the operation step, the start step and the heating step are performed before that. Since the refrigerant can be heated by the compressor heater using the generated power or the electric power stored in the power storage device, the refrigerant in the liquid state is supplied to the compressor and the compressor is damaged. It is possible to prevent the occurrence of such problems. Moreover, when the generator is driven by the prime mover in the starting step, the generated power of the generator can be increased because the compressor is disconnected from the prime mover. As a result, when it is not possible to receive power supply from the commercial system due to a power outage, etc., not only the power generated by the generator is supplied to the compressor heater by increasing the power generated by the generator, but also Since it can also be supplied to other devices, it is very useful as a starting method of the first air conditioner.

  In the start-up method of the air conditioning system according to the present invention, the clutch can be set in a plurality of connection patterns for one or both of the capacity and the number of the compressors connected to the prime mover. The clutch is set to one connection pattern selected from the plurality of connection patterns based on the connection, the compressor is connected to the prime mover, and the clutch connection pattern is set as the selection condition during operation of the heat pump circuit. It is preferable to maintain the connection pattern selected based on the connection pattern.

In the first air conditioner, when a compressor is connected to the prime mover, the clutch can be set to a plurality of connection patterns for one or both of the capacity and the number of compressors. By changing and setting the pattern, the air conditioning load can be satisfied while flexibly responding to changes in the air conditioning load.
However, when changing the clutch connection pattern, it is necessary to change the clutch connection pattern in a state where the rotational speed of the prime mover is lowered to a low rotational speed. Therefore, when the clutch connection pattern change setting is performed, the generated power of the generator connected to the prime mover decreases as the rotational speed of the prime mover decreases. When power can be supplied from the commercial system, even if the power generated by the generator decreases, the power received from the commercial system only increases. If this is not possible, there is a possibility that the second air conditioner cannot be activated properly due to a decrease in the power generated by the generator.

  Therefore, in the starting method according to the present invention, in the operation step, the clutch is set to one connection pattern selected from the plurality of connection patterns based on the selection condition, the compressor is connected to the prime mover, and the heat pump circuit is in operation. The clutch connection pattern is maintained at the connection pattern selected based on the selection condition. Thereby, during operation of the heat pump circuit, it is possible to prevent the generated power of the generator from decreasing without changing the clutch connection pattern. As a result, when the supply of power from the commercial system cannot be received due to a power failure or the like, it is possible to prevent the generated power of the generator from decreasing and to appropriately start the second air conditioner.

  In the method for starting an air conditioning system according to the present invention, it is preferable that the second air conditioner does not include the generator and does not have a power generation capability.

  In other words, since the second air conditioner does not have a generator and does not have power generation capability, the second air conditioner is activated when power cannot be supplied from the commercial system due to a power failure or the like. I can't let you. Therefore, even if such a second air conditioner is provided as the air conditioning system, the second air conditioner can be activated by supplying the power generated by the generator in the first air conditioner. Further, by providing the air conditioning system with the second air conditioner that does not include the power generator in addition to the power storage device, it is possible to further reduce the cost and simplify the configuration.

The characteristic configuration of the starter of the air conditioning system according to the present invention includes a prime mover that drives a compressor, a heat pump circuit that includes the compressor, the first heat exchanger, an expansion valve, and a second heat exchanger, In the starter of the air conditioning system provided with a plurality of air conditioners having a starting motor for starting the prime mover,
As the air conditioner, a first air conditioner including a power storage device in which the compressor and a generator are connected to the prime mover and capable of storing power from a commercial system and power generated by the generator, and the power storage device There is a second air conditioner that does not have
The power generated by the generator in the first air conditioner can be freely supplied to the starter motor in the second air conditioner,
In the first air conditioner , when the power supply from the commercial system cannot be received, the power stored in the power storage device is supplied to the starter motor and the generator is connected to the starter motor. Performing the first step of starting the prime mover and starting the first air conditioner;
Next, in the second air conditioner, the power generated by the generator in the first air conditioner is supplied to the starter motor, the prime mover is started by the starter motor, and the second air conditioner is started. A system activation control unit for performing the second step is provided ;
Before the system activation control unit performs the second step, the power generation surplus of the generator in the first air conditioner activated in the first step, the activation target in the second step A determination step is performed to determine whether or not the starting power necessary for starting the prime mover in the second air conditioner can be covered, and the starting power can be covered by the generated power by the determination step. If it is determined, the second step is performed, and if it is determined that the starting power cannot be covered by the generated power by the determining step, the generated power capacity increasing step for increasing the generated power capacity is performed. Again, the determination step is performed .

  According to this characteristic configuration, as described in the method for starting the power generation system according to the present invention, power is supplied from the commercial system due to a power failure or the like by performing the first step and the second step in this order. When it cannot do, it can start in order of a 1st air conditioner and a 2nd air conditioner, and can perform an air conditioning operation in each of a 1st air conditioner and a 2nd air conditioner. And since the 2nd air conditioner is not provided with the electrical storage apparatus, cost reduction and simplification of a system configuration can be achieved. Therefore, according to the starter according to the present invention, even when power cannot be supplied from the commercial system due to a power failure or the like, a plurality of air conditioners can be started and air-conditioned without causing an increase in cost. it can.

Furthermore , according to this characteristic configuration, as described in the method for starting the power generation system according to the present invention, it is determined whether it is necessary to increase the power generation surplus in order to start the second air conditioner. The second air conditioner can be appropriately activated while confirming that the power generation surplus can cover the starting power by increasing the power generation surplus without increasing the power generation surplus.

Diagram showing schematic configuration of air conditioning system The figure which shows schematic structure of a 1st air conditioner. Flow chart showing operation of system controller The figure which shows the state of the 1st air conditioner in a starting step The figure which shows the state of the 1st air conditioner in a heating step The figure which shows the state of the 1st air conditioner in an action | operation step Flow chart showing operation of power outage control unit Flow chart showing operation for setting connection pattern

Embodiments of an air conditioning system activation method according to the present invention and an air conditioning system activation apparatus according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the air conditioning system 200 includes a plurality of air conditioners 100, and the air conditioner 100 includes two types of air conditioners 100, a first air conditioner 101 and a second air conditioner 102. It has been. In this embodiment, two first air conditioners 101 and two second air conditioners 102 are provided. In FIG. 1, only one schematic configuration of the first air conditioner 101 is shown, and the schematic configuration of the other first air conditioner 101 is omitted. Moreover, in FIG. 1, although 2 units | sets have shown schematic structure about the 2nd air conditioner 102, about the 2nd air conditioner 102b without a generator, the structure of a part (indoor unit S2, heat pump circuit 9). Is omitted.

  Both the first air conditioner 101 and the second air conditioner 102 include an outdoor unit S1 and an indoor unit S2. The engine 1 (corresponding to the prime mover) that drives the compressor 5 and the compressor 5 , A heat pump circuit 9 including a first heat exchanger 6, an expansion valve 7, and a second heat exchanger 8. The first air conditioner 101 includes a battery 17 (corresponding to a power storage device) in which the compressor 5 and the power generator 3 are connected to the engine 1 and can store power from the commercial system 15 and power generated by the power generator 3. In contrast, the second air conditioner 102 is not equipped with such a battery 17. Thereby, as the air conditioning system 200, the system is configured while reducing the cost and simplifying the configuration without including the battery 17 in all of the plurality of air conditioners 100. Further, a part of the plurality of second air conditioners 102 is not provided with the generator 3 in addition to the battery 17, which further contributes to cost reduction and simplification of the configuration.

  And about the electric power system of the air conditioning system 200, the 1st air conditioner 101 and the 2nd air conditioner 102 are connected with the commercial system 15 in parallel. Thereby, the 1st air conditioner 101 and the 2nd air conditioner 102 are comprised so that supply of electric power may be received from the commercial system 15. FIG. Between the first air conditioner 101 and the second air conditioner 102, the power generated by the generator 3 in the first air conditioner 101 is configured to be freely supplied to the second air conditioner 102. The electric power generated by the generator 3 is configured to be freely supplied to each device included in the second air conditioner 102.

  As described above, since the second air conditioner 102 does not include some of the equipment (battery 17 and generator 3) included in the first air conditioner 101, the configuration of the first air conditioner 101 will be described first. Next, the configuration of the second air conditioner 102 will be briefly described.

(Configuration of the first air conditioner)
Based on FIG.1 and FIG.2, the structure of the 1st air conditioner 101 is demonstrated. FIG. 2 is an enlarged view of the configuration of the first air conditioner 101 in FIG.
The first air conditioner 101 includes an outdoor unit S1 and an indoor unit S2. The outdoor unit S1 includes an engine 1 (corresponding to a prime mover), and the engine 1 is configured by a gas engine that uses gaseous fuel such as city gas (13A) as fuel. A generator 3 is linked to the output shaft on one side of the engine 1 via a generator-side clutch 2, and a compressor-side clutch 4 (clutch) is connected to the output shaft on the other side of the engine 1. And the compressor 5 is linked to each other through the engine 1, and both the generator 3 and the compressor 5 are configured to be freely driven by the engine 1.

  Here, as shown in FIG. 2, the compressor 5 linked to the output shaft on the other side of the engine 1 is provided with a compressor 5a having a small capacity and a compressor 5b having a large capacity. In FIG. 1, the compressor 5 a having a small capacity and the compressor 5 b having a large capacity are omitted and shown as the compressor 5. The compressor side clutch 4 is configured to be freely set to a plurality of connection patterns with respect to the capacity and the number of the compressors 5 that are interlocked and connected to the engine 1. That is, there are three connection patterns of the first to third connection patterns as the plurality of connection patterns. The first connection pattern is a connection pattern for connecting only the compressor 5a having a small capacity, the second connection pattern is a connection pattern for connecting only the compressor 5b having a large capacity, and the third connection pattern has a capacity of This is a connection pattern for connecting two compressors 5 of a small compressor 5a and a compressor 5b having a large capacity. Thus, the compressor side clutch 4 is set to one connection pattern of the first to third connection patterns, and the compressor 5 is configured to be interlocked and connected to the output shaft on the other side of the engine 1. ing.

The first air conditioner 101 includes a starting motor 13 that starts the engine 1 and a cooling water pump 14 that circulates cooling water that cools the engine 1 in order to operate the engine 1. A water pump 14 is provided in the outdoor unit S1.
In addition, the first air conditioner 101 includes a compressor 5, a four-way valve (not shown) that can switch the refrigerant flow state, a first heat exchanger 6, an expansion, in order to perform air conditioning operations such as cooling operation and heating operation. A heat pump circuit 9 (see a solid line arrow in FIG. 2) composed of a valve 7 and a second heat exchanger 8, an outdoor fan 10 for passing outdoor air through the first heat exchanger 6, and a second heat exchanger 8 includes an indoor fan 11 that allows indoor air to pass through, and a compressor heater 12 that heats the refrigerant supplied to the compressor 5 by the heat pump circuit 9.

The 1st air conditioner 101 is comprised so that supply of electric power may be received from the commercial system 15, and the electric power system in the 1st air conditioner 101 is demonstrated with reference to the dotted-line arrow of FIG.
An inverter 16 is provided between the generator 3 and the commercial system 15. The inverter 16 includes an outdoor fan 10, an indoor fan 11, a compressor heater 12, a starter motor 13, a cooling water pump 14, and the like. A power consuming device is connected. Thereby, the inverter 16 supplies the electric power from the commercial system 15 and the electric power generated by the generator 3 to power consuming devices such as the outdoor fan 10, the indoor fan 11, the compressor heater 12, the starter motor 13, and the cooling water pump 14. It is configured freely. Also connected to the inverter 16 is a remote control R provided with an operation command switch for instructing start and stop of air conditioning operation such as cooling operation and heating operation, a temperature setting unit for setting a target set temperature in the air conditioning operation, and the like. The electric power from the commercial system 15 and the electric power generated by the generator 3 can also be supplied to the remote controller R.

  Between the inverter 16 and the starter motor 13, a battery 17 (corresponding to a power storage device) capable of storing the electric power from the commercial system 15 and the electric power generated by the generator 3 is provided. The stored electric power is configured to be freely supplied to the starter motor 13. A circuit breaker 18 is provided between the commercial system 15 and the inverter 16 for intermittently supplying power from the commercial system 15, and when power cannot be received from the commercial system 15 due to a power failure or the like. The circuit breaker 18 is configured to cut off the supply of power from the commercial system 15. In addition, a power load 19 such as lighting equipment other than the power generation / air conditioner 100 is connected between the circuit breaker 18 and the inverter 16, and the power from the commercial system 15 and the power generated by the generator 3 are used as the power load. 19 is configured to be freely supplied.

  The first air conditioner 101 is provided with an operation control unit H that controls the operation thereof, and the operation control unit H controls the operation of the power generation / air conditioner 100 based on a command from the remote controller R or the like. It is configured as follows. Although not shown, the operation control unit H is configured to be able to supply both power from the commercial system 15 and power stored in the battery 17. When the power supply from the commercial system 15 can be supplied to the operation control unit H, the normal operation control unit H1 that controls the operation of the power generation / air conditioner 100 and the power from the commercial system 15 due to a power failure or the like. A power failure operation control unit H <b> 2 that controls the operation of the power generation / air conditioning device 100 when the supply cannot be received is provided.

The operation control of the first air conditioner 101 by the normal operation control unit H1 will be described.
When the supply of power from the commercial system 15 can be received, the circuit breaker 18 is connected, and the power from the commercial system 15 is supplied to the operation control unit H and the remote controller R, and the starter motor 13, The compressor heater 12, the cooling water pump 14, the outdoor fan 10, and the indoor fan 11 can also be supplied to power consuming devices. At this time, when the start of the air conditioning operation is instructed by the remote controller R, the normal operation control unit H1 engages the generator 3 with the generator-side clutch 2 and interlocks the generator 3 with the output shaft on one side of the engine 1, The compressor-side clutch 4 is inserted, the compressor 5 is linked to the other output shaft of the engine 1, and the engine 1 is started by the starter motor 13 to start the first air conditioner 101. The normal operation control unit H1 drives the generator 3 with the engine 1 to generate electric power, and also drives the compressor 5 with the engine 1 to operate the heat pump circuit 9 to perform the air conditioning operation.

  When the flow of the refrigerant in the heat pump circuit 9 in the air conditioning operation is further described, the cases shown in FIGS. 1 and 2 show the case where the heating operation is performed as the air conditioning operation. In the heating operation, the heat pump circuit 9 causes the refrigerant to flow in the order of the compressor 5, the second heat exchanger 8, the expansion valve 7, and the first heat exchanger 6, and returns the refrigerant to the compressor 5. Thus, the first heat exchanger 6 absorbs heat from the outdoor air, the absorbed heat is dissipated to the indoor air by the second heat exchanger 8, the indoor air is ventilated indoors, and the room is heated. Like to do. When performing the cooling operation as the air conditioning operation, the normal operation control unit H1 switches the four-way valve (not shown), and the heat pump circuit 9 causes the compressor 5, the first heat exchanger 6, the expansion valve 7, The refrigerant flows in the order of the two heat exchangers 8, and the refrigerant is returned to the compressor 5. As a result, the second heat exchanger 8 absorbs heat from the room air, and the absorbed heat is radiated to the outdoor air by the first heat exchanger 6 to cool the room.

  Here, although illustration is omitted, the indoor unit S2 and the like are provided with a temperature sensor, and the normal operation control unit H1 obtains the air conditioning load from the detected temperature of the temperature sensor during the air conditioning operation, and the obtained air conditioning. The connection pattern of the compressor side clutch 4 can be changed and set so as to satisfy the load. For example, when the compressor-side clutch 4 is set to the first connection pattern in which only the compressor 5a having a small capacity is connected to the engine 1, the detected temperature of the temperature sensor during the cooling operation is higher than the target set temperature. When the air conditioning load increases, the normal operation control unit H1 changes the connection pattern of the compressor side clutch 4 from the first connection pattern to the second connection pattern that connects only the compressor 5b having a large capacity to the engine 1, or the capacity. The third connection pattern in which both the small compressor 5a and the large capacity compressor 5b are connected to the engine 1 is set. Thus, the normal operation control unit H1 changes the connection pattern of the compressor side clutch 4 according to the size of the air conditioning load, and changes the capacity and the number of the compressors 5 to reduce the air conditioning load. To meet.

  When the normal operation control unit H1 performs the air conditioning operation, the generator 3 is linked to the engine 1 by the generator-side clutch 2, and thus the generator 1 is driven by the engine 1 to generate power. Therefore, the generated power of the generator 3 is supplied to the power consuming devices such as the compressor heater 12, the cooling water pump 14, the outdoor fan 10, and the indoor fan 11 through the inverter 16, and the surplus power is The battery 17 is charged.

  Then, when the remote control R is instructed to stop the air conditioning operation, the normal operation control unit H1, for example, energizes the cooling water pump 14, the outdoor fan 10 or the like for a certain period of time to continue the operation, and then performs the first operation. The operation of the air conditioner 101 is stopped.

(Configuration of second air conditioner)
Based on FIG. 1, the structure of the 2nd air conditioning apparatus 102 is demonstrated compared with the structure of the above-mentioned 1st air conditioning apparatus 101. FIG.
In this embodiment, as the second air conditioner 102, the second air conditioner 102a with the generator provided with the generator 3 (upper side in FIG. 1) and the generator 3 are provided with the power generation capacity. The second air conditioner 102b (the lower side in FIG. 1) without a generator is provided. Moreover, in FIG. 1, only the outdoor unit S1 is shown about the 2nd air conditioner 102b without a generator, and it has abbreviate | omitted about the indoor unit S2.

  The second air conditioner 102a with the generator is different from the first air conditioner 101 in that the battery 17 is not provided. Therefore, in the second air conditioner 102 a with the generator, the generator 3 is linked to the output shaft on one side of the engine 1 via the generator-side clutch 2, similarly to the first air conditioner 101. At the same time, a compressor 5 is linked to the output shaft on the other side of the engine 1 via a compressor-side clutch 4, and the generator 1 and the compressor 5 are both configured to be driven by the engine 1. Yes. And the 2nd air conditioner 102a with a generator is provided with power consumption apparatuses, such as the outdoor fan 10, the indoor fan 11, the compressor heater 12, the starting motor 13, and the cooling water pump 14, similarly to the 1st air conditioner 101. It has been. The second air conditioner 102a with a generator is provided with an operation control unit that controls the operation of the second air conditioner 102a with a generator, and, like the normal operation control unit H1 of the first air conditioner 101, the commercial system. 15, the engine 1 is started by the starter motor 13 to start the second air conditioner 102 a with a generator, and the generator 1 is driven by the engine 1 to generate power. The compressor 1 is driven by the engine 1 and the heat pump circuit 9 is operated to perform the air conditioning operation. Further, the second air conditioner 102a with the generator is configured to receive the power generated by the generator 3 in the first air conditioner 101.

  The second air conditioner 102b without the generator is different from the first air conditioner 101 in that the battery 3 is not provided and the generator 3 is not provided. And the 2nd air conditioner 102b without a generator is equipped with power consumption apparatuses, such as the outdoor fan 10, the indoor fan 11, the compressor heater 12, the starting motor 13, and the cooling water pump 14, similarly to the 1st air conditioner 101. It has been. The second air conditioner 102b without a generator is provided with an operation control unit that controls the operation of the second air conditioner 102b without a generator. Like the normal operation control unit H1 of the first air conditioner 101, the commercial power system is provided. 15, the engine 1 is started by the starter motor 13 to start the second air conditioner 102 b without a generator, and the compressor 5 is driven by the engine 1 to heat the heat pump circuit 9. Is operated to perform air conditioning operation. Further, the second air conditioner 102b without a generator is configured to receive the power generated by the generator 3 in the first air conditioner 101.

As described above, when the power supply from the commercial system 15 can be received, both the first air conditioner 101 and the second air conditioner 102 supply the power from the commercial system 15 to the starter motor 13. The engine 1 is started by the starter motor 13 and the first air conditioner 101 and the second air conditioner 102 are started to perform the air conditioning operation.
However, when the supply of electric power from the commercial system 15 cannot be received due to a power failure or the like, the air conditioning system 200 cannot be activated by the activation method as described above. Therefore, in the present embodiment, a system control unit C (corresponding to a system activation control unit) that activates the air conditioning system 200 when power supply from the commercial system 15 cannot be received due to a power failure or the like is provided. .

(Starting method of the air conditioning system 200 by the system controller C)
Hereinafter, a method of starting the air conditioning system 200 by the system control unit C when the power supply from the commercial system 15 cannot be received due to a power failure or the like will be described based on the flowcharts of FIGS. 1, 2, and 3.

  As shown in FIG. 2, when power cannot be supplied from the commercial system 15 due to a power failure or the like, the circuit breaker 18 is cut off and the remote controller R is not energized. Can not do. Therefore, as shown in FIG. 1, a manually operated operation button 20 is provided, and the operation start of the air conditioning system 200 is commanded by manually operating the operation button 20. Here, although not shown, the system control unit C is configured to be able to supply power from the battery 17 or the like in the first air conditioner 101, and can receive power from the commercial system 15 due to a power failure or the like. Even if it is not possible, power is supplied to the system control unit C.

  First, when the start of operation of the air conditioning system 200 is commanded by the operation button 20, the system control unit C supplies power stored in the battery 17 to the starter motor 13 in the first air conditioner 101 to start motor. The engine 1 to which the generator 3 is connected is started at 13, and the first step of starting the first air conditioner 101 is performed (in the case of Yes at step # 1, step # 2). In this first step, all of the plurality of first air conditioners 101 (two in this embodiment) are activated. And by performing this 1st step, since it can generate electric power with the generator 3 in the 1st air conditioner 101, the generated electric power of the generator 3 is supplied to the remote control R in the 1st air conditioner 101, the compressor heater 12, While supplying to the cooling water pump 14, the outdoor fan 10, and power consuming equipment such as the indoor fan 11, a remote controller (not shown) in the second air conditioner 102, the compressor heater 12, the cooling water pump 14, and the outdoor fan. 10 and an energization process that supplies power consumption devices such as the indoor fan 11 (step # 3).

  Since the remote controller in the second air conditioner 102 is energized, it is possible to command the start of the air conditioning operation with this remote controller. Therefore, when there is a command for starting the air conditioning operation by the remote controller in any of the plurality of second air conditioners 102, and there is the second air conditioner 102 to be activated, the system control unit C performs the first step. It is determined whether the starting power necessary for starting the engine 1 in the second air conditioner 102 to be activated can be covered by the remaining power generation capacity of the generator 3 in the first air conditioner 101 activated in this manner. A determination step is performed (step # 5). In performing this determination step, the number of the second air conditioners 102 to be activated is one, and if there is a command to start the air conditioning operation with the remote controller in the plurality of second air conditioners 102, priority will be described later. The second air conditioner 102 having the highest rank is selected as the activation target. As for the remaining power generation capacity, the number D of first air conditioners 101 (in this embodiment, the rated generated power P1 [kW] of the generator 3 when the engine 1 in the first air conditioner 101 is operated at the rated value). It is a value (= P1 × D−P2) obtained by subtracting the current generated power P2 [kW] from the product of two. The rated generated power P1 [kW] and the starting power are obtained in advance by experiments or the like, and the current generated power P2 is measured by a power meter or the like not shown.

  When the system control unit C determines that the starting power can be covered by the power generation surplus in the determination step, the generated power of the generator 3 in the first air conditioner 101 is started in the second air conditioner 102 to be started. The second step of starting the second air conditioner 102 to be started is performed by supplying the motor 13 and starting the engine 1 by the starter motor 13 (in the case of Yes in step # 5, step # 10).

  When it is determined in the determination step that the starting power cannot be covered by the power generation surplus, the system control unit C performs a power generation surplus increasing step for increasing the power generation surplus (in the case of No in step # 5, step # 6). . In this case, as shown in step # 6, the system control unit C, as shown in step # 6, increases the remaining power generation step, and the clutch OFF step of disconnecting the compressor 5 from the engine 1 by disengaging the compressor side clutch 4 while maintaining the operation of the engine 1. In addition, both the supply power reduction step of reducing the supply power for supplying the generated power of the generator 3 to the power consuming device in the first air conditioner 101 is performed. In the supply power reduction step, the supply power for supplying the generated power of the generator 3 to the power consuming device is reduced by stopping the energization of the devices provided in the indoor unit S2, such as the indoor fan 11. I am letting.

  And the system control part C performs a discrimination | determination step again, after performing the power generation surplus increase step (step # 7). When the system control unit C determines that the starting power can be covered by the power generation surplus in the determination step in step # 7, the generator 3 in the first air conditioner 101 is activated in the second air conditioner 102 to be activated. Is supplied to the starter motor 13 to start the engine 1 with the starter motor 13 and perform the second step of starting the second air conditioner 102 to be started (in the case of Yes in step # 7, step #). 10). Conversely, when the system control unit C determines that the starting power cannot be covered by the power generation surplus in the determination step in step # 7, the system control unit C performs a power generation surplus increasing step for increasing the power generation surplus (No in step # 7). In the case of step # 8, step # 9). In this case, the system controller C determines that the second air conditioner 102 has a lower priority than the second air conditioner 102 to be activated as the power generation surplus increasing step, as shown in the case of Yes in step # 8 and step # 9. Is already activated, an operation stop step is performed to stop the operation of the second air conditioner 102 having a lower priority.

In the case of Yes in step # 8 and step 9 will be described.
In the case where a plurality of second air conditioners 102 are provided, the priority order for starting the plurality of second air conditioners 102 is set in advance in accordance with the importance of the air-conditioning target location. Therefore, when starting the 2nd air conditioner 102 of starting object, the other 2nd air conditioner 102 may have already started before that. In such a case, it is determined which of the second air conditioner 102 to be activated and the already activated second air conditioner 102 has the higher priority. When the second air conditioner 102 having a lower priority than the priority order of the second air conditioner 102 to be activated has already been activated, the second air conditioner 102 with the lowest priority is stopped. The remaining power generation capacity is increased while starting the second air conditioner 102 having a higher priority.

  In the case of No in Step # 8, the second air conditioner 102 having a lower priority than the second air conditioner 102 to be activated has not been activated. Thereby, since the priority order of the second air conditioner 102 to be activated becomes the lowest, the second air conditioner 102 to be activated is in the activation waiting state, and the determination step is performed again (step # 7).

  When the second air conditioner 102 to be activated is activated in step # 10, in the first air conditioner 101, when the compressor side clutch 4 is disengaged and the compressor 5 is disconnected from the engine 1, the compressor The power generated by the generator 3 with respect to the power consuming device (equipment provided in the indoor unit S2) that is energized and connected to the engine 1 to the compressor 5 by inserting the side clutch 4 and stopped in step # 6. Is supplied to resume energization (step # 11).

  Then, the system control unit C receives a command for starting the air conditioning operation from the remote controller in any of the other second air conditioners 102, and if there is another second air conditioner 102 to be activated (step # 12). In the case of Yes), the process returns to step # 5, and the engine 1 in the second air conditioner 102 to be activated is started with the remaining power generation capacity of the generator 3 in the first air conditioner 101 activated in the first step. A determination step is performed to determine whether or not the starting power necessary for the operation can be covered.

  Further, when there is no other second air conditioner 102 to be activated (No in step # 12), the system control unit C activates when the operation button 20 is turned off and there is no operation stop command. The first air conditioner 101 and the second air conditioner 102 are stopped and the operation of the air conditioning system 200 is stopped (in the case of No in step # 13).

(Starting method of first air conditioner 101)
Here, in step # 2, the system control unit C supplies the electric power stored in the battery 17 to the starter motor 13, starts the engine 1 to which the generator 3 is connected by the starter motor 13, and starts the first operation. 1 The air conditioner 101 is activated. At this time, as shown in FIG. 2, the power failure operation control unit H <b> 2 activates the first air conditioner 101 according to a command from the system control unit C.

  Hereinafter, based on the flowchart of FIGS. 4-6 and FIG. 7, the starting method of this 1st air conditioner 101 is demonstrated. 4 to 6, the schematic configuration of the first air conditioner 101 is illustrated in FIG. 2, and the devices to be operated and the devices to be energized are indicated by a pattern and a thick line.

  As shown in FIGS. 4 and 7, the power failure operation control unit H2 supplies power stored in the battery 17 to the starter motor 13, disconnects the compressor-side clutch 4, and disconnects the compressor 5 from the engine 1. In this state, the start motor 13 starts the engine 1 to which the generator 3 is interlocked and connected by the generator side clutch 2 (step # 21).

  Next to the start step, the power failure operation control unit H2 drives the generator 3 with the engine 1 to supply the generated power of the generator 3 to the compressor heater 12 as shown in FIGS. A heating step of heating the refrigerant supplied to the compressor 5 in the circuit 9 is performed (steps # 22 to # 24). In this heating step, an energization process for supplying the generated power of the generator 3 not only to the compressor heater 12 but also to the remote control R, the cooling water pump 14, the outdoor fan 10, and the power consuming equipment of the indoor fan 11 is performed. Like to do. In the heating step, the power failure operation control unit H2 detects the temperature inside the compressor 5 by a temperature sensor (not shown), and the detected compressor temperature is equal to or higher than a set temperature (for example, 15 ° C.). If the compressor temperature is lower than a set temperature (for example, 15 ° C.), the compressor heater 12 is turned on to heat the refrigerant supplied to the compressor 5 and the liquid state Thus, the refrigerant is prevented from being supplied to the compressor 5 (in the case of No in Step # 23, Step # 24).

  Next to the heating step, as shown in FIGS. 6 and 7, the power failure operation control unit H <b> 2 inserts the compressor side clutch 4, connects the compressor 5 to the engine 1, and drives the compressor 5 with the engine 1. Then, an operation step for operating the heat pump circuit 9 is performed (steps # 25 and # 26). In this operation step, a process of setting the connection pattern of the compressor side clutch 4 is performed, and the compressor side clutch 4 is inserted with the connection pattern set in the process to connect the compressor 5 to the engine 1 ( Step # 25, Step # 26). FIG. 6 shows a case where the connection pattern of the compressor side clutch 4 is set to the third connection pattern in which the two compressors 5 of the compressor 5a having a small capacity and the compressor 5b having a large capacity are connected.

  In this way, when the system controller C commands the start of the first air conditioner 101, the power failure operation control unit H2 performs the first air conditioning by performing each step in the order of the start step, the heating step, and the operation step. The apparatus 101 is activated to perform air conditioning operation while generating power. Thus, when the compressor 5 is driven by the engine 1 in the operation step, the starting step and the heating step are performed before that, and the generator 3 generates power and uses the generated power to generate the compressor heater 12. Therefore, it is possible to prevent the liquid refrigerant from being supplied to the compressor 5 and causing problems such as breakage of the compressor 5. Moreover, when the generator 1 is driven by the engine 1 in the starting step, the compressor 5 is disconnected from the engine 1, so that the generated power of the generator 3 can be increased, and the power generation of the generator 3 can be increased. The electric power can be supplied not only to the compressor heater 12 but also to a power consuming device such as the remote controller R.

Here, the process of setting the connection pattern of the compressor side clutch 4 in step # 25 will be described based on the flowchart of FIG.
As described above, the compressor side clutch 4 includes the first connection pattern for connecting only the compressor 5a having a small capacity, the second connection pattern for connecting only the compressor 5b having a large capacity, and the compressor 5a having a small capacity. The three connection patterns of the third connection pattern for connecting the two compressors 5 with the compressor 5b having a large capacity can be changed and set.

  Therefore, the power failure operation control unit H2 obtains the air conditioning load from various conditions such as the current outside air temperature and the room temperature, and determines whether or not the obtained air conditioning load is equal to or higher than the set air conditioning load. Is equal to or greater than the set air conditioning load, the connection pattern of the compressor side clutch 4 is set to the third connection pattern (in the case of Yes in step # 41, step # 42).

When the calculated air conditioning load is less than the set air conditioning load, the power failure operation control unit H2 determines whether or not it is automatically set based on the outside air temperature (in the case of No in step # 41, step # 43). Then, if the outside power temperature is automatically set by the outside air temperature, the power failure operation control unit H2 determines whether or not the outside air temperature measured by a temperature sensor or the like outside the figure satisfies the large capacity condition, and the outside air temperature is high. If the capacity condition is satisfied, the connection pattern of the compressor side clutch 4 is set to the second connection pattern (in the case of Yes in step # 44, step # 45), and the outside air temperature does not satisfy the large capacity condition. The connection pattern of the compressor side clutch 4 is set to the first connection pattern (in the case of No in step # 44, step # 46).
Explaining the large capacity condition of the outside air temperature, the outside temperature is higher than the upper limit temperature (for example, 28 ° C.) when performing the cooling operation, or the outside temperature is the lower limit temperature (for example, 2 ° C.) when performing the heating operation. If it is lower than that, the air conditioning load becomes large, and in order to satisfy the air conditioning load, a large capacity of the compressor 5 is required. Therefore, if the outside air temperature is higher than the upper limit temperature (for example, 28 ° C.) or the outside air temperature is lower than the lower limit temperature (for example, 2 ° C.), it is determined that the outside air temperature satisfies the large capacity condition. doing.

  The power failure operation control unit H2 determines whether or not the season satisfies the large capacity condition when the outdoor temperature is not automatically set (in the case of No in step # 43), and the season satisfies the large capacity condition. If the connection pattern of the compressor side clutch 4 is set to the second connection pattern (Yes in step # 47, step # 45) and the season does not satisfy the large capacity condition, the compressor side The connection pattern of the clutch 4 is set to the first connection pattern (in the case of No in step # 47, step # 46).

  In this way, in the operation step, selection conditions (for example, whether the air conditioning load is equal to or higher than the set air conditioning load, whether the outside air temperature satisfies the large capacity condition, and whether the season satisfies the large capacity condition) Based on the above, one connection pattern is selected and set from a plurality of connection patterns. In the operation step, the compressor side clutch 4 is set to one connection pattern selected based on the selection condition, and the compressor 5 is connected to the engine 1.

  When the power failure operation control unit H2 sets the compressor-side clutch 4 in one connection pattern selected based on the selection condition and connects the compressor 5 to the engine 1, the compressor during the subsequent operation of the heat pump circuit 9 The connection pattern of the side clutch 4 is maintained at the connection pattern selected based on the selection condition. That is, unlike the air conditioning operation by the normal operation control unit H1, the air conditioning operation by the power failure operation control unit H2 starts the air conditioning operation without changing the connection pattern of the compressor side clutch 4 during the air conditioning operation. The original connection pattern is maintained as it is.

(Starting method of second air conditioner 102)
In FIG. 3, in step # 10, the system control unit C supplies the generated power of the generator 3 in the first air conditioner 101 to the starter motor 13 in the second air conditioner 102 to be activated, and the starter motor 13. The engine 1 to which the generator 3 is connected is started to start the second air conditioner 102. At this time, the operation control unit of the second air conditioner 102 activates the second air conditioner 102 according to a command from the system control unit C.

  As shown in FIG. 1, the power generated by the generator 3 in the first air conditioner 101 is supplied to a remote controller (not shown), and the starter motor 13, the compressor heater 12, the cooling water pump 14, the outdoor fan 10, and The power can be supplied to power consuming devices such as the indoor fan 11. Therefore, the operation control unit of the second air conditioner 102 puts the compressor-side clutch 4 and interlocks the compressor 5 with the output shaft of the engine 1 and starts the engine 1 with the starter motor 13 to start the second air conditioner. The apparatus 102 is activated. By the way, for the second air conditioner 102 with the generator, the compressor-side clutch 4 is inserted and the compressor 5 is linked to the output shaft of the engine 1, and the generator-side clutch 2 is also inserted to connect the generator 1 to the engine 1. 3 are continuously connected, and the starter motor 13 starts the engine 1 to start the second air conditioner 102.

[Another embodiment]
(1) In the above embodiment, both the clutch OFF step and the supply power reduction step are performed as the power generation surplus increase step. For example, only the clutch OFF step or only the supply power reduction step is performed. You can also

(2) In the above embodiment, when starting the first air conditioner 101, in the heating step, the generated power of the generator 3 is supplied to the compressor heater 12 and supplied to the compressor 5 by the heat pump circuit 9. The refrigerant is heated, and each step is performed in the order of the start step, the heating step, and the operation step. Alternatively, in the heating step, the electric power stored in the battery 17 can be supplied to the compressor heater 12 and the refrigerant supplied to the compressor 5 can be heated by the heat pump circuit 9. In this case, the operation step can be performed after the start step and the heating step are performed simultaneously.

(3) In the above embodiment, when the first air conditioner 101 is started, the compressor side clutch 4 is changed and set to the first to third connection patterns with respect to the capacity and the number of the compressors 5 that are linked to the engine 1. It is configured freely. Instead, only the capacity of the compressor 5 linked to the engine 1 can be changed and set to the first connection pattern and the second connection pattern so that the connection pattern of the compressor side clutch 4 can be changed and set. You can also. In this case, in FIG. 8, step # 41 and step # 42 are omitted, and processing for setting a connection pattern is performed.
When a plurality of compressors 5 are provided, the connection pattern of the compressor side clutch 4 can be changed and set only for the number of compressors 5 that are linked and linked to the engine 1.

(4) In the above embodiment, the generated power of the generator 3 is configured to be freely supplied to the power load 19, but in addition to or instead of the configuration, the generated power of the generator 3 is sold. It can also be configured to allow electricity.

(5) In the above embodiment, the second air conditioner 102 includes the second air conditioner 102a with the generator and the second air conditioner 102b without the generator. It is also possible to include only the second air conditioner 102a or only the second air conditioner 102b without a generator.

  The present invention includes a prime mover that drives a compressor, a heat pump circuit that includes the compressor, a first heat exchanger, an expansion valve, and a second heat exchanger, and a starter motor that starts the prime mover. Various air conditioners that are equipped with multiple air conditioners and can start up and operate air conditioners without incurring cost increases even when power cannot be supplied from a commercial system due to a power outage The present invention can be applied to a system activation method and various air conditioning system activation devices.

1 engine (motor)
3 Generator 4 Compressor side clutch (clutch)
5 Compressor 6 First Heat Exchanger 7 Expansion Valve 8 Second Heat Exchanger 9 Heat Pump Circuit 15 Commercial System 17 Battery (Power Storage Device)
200 Air Conditioning System 101 First Air Conditioner 102 Second Air Conditioner C System Control Unit (System Activation Control Unit)

Claims (7)

A plurality of air conditioners having a prime mover for driving a compressor, a heat pump circuit composed of the compressor, the first heat exchanger, an expansion valve, and a second heat exchanger, and a starter motor for starting the prime mover A method for starting an air conditioning system equipped with a stand,
As the air conditioner, a first air conditioner including a power storage device in which the compressor and a generator are connected to the prime mover and capable of storing power from a commercial system and power generated by the generator, and the power storage device There is a second air conditioner that does not have
The power generated by the generator in the first air conditioner can be freely supplied to the starter motor in the second air conditioner,
In the first air conditioner , when the power supply from the commercial system cannot be received, the power stored in the power storage device is supplied to the starter motor and the generator is connected to the starter motor. Performing the first step of starting the prime mover and starting the first air conditioner;
Next, in the second air conditioner, the power generated by the generator in the first air conditioner is supplied to the starter motor, the prime mover is started by the starter motor, and the second air conditioner is started. Perform the second step ,
Prior to performing the second step, the prime mover in the second air conditioner to be activated in the second step with the power generation surplus of the generator in the first air conditioner activated in the first step. A determination step is performed to determine whether or not the starting power necessary for starting the engine can be covered, and the determination step determines that the starting power can be covered by the remaining power generation. 2 steps are performed, and when it is determined that the starting power cannot be covered by the power generation surplus in the determination step, the power generation surplus increase step for increasing the power generation surplus is performed, and then the determination step is performed again. How to start the air conditioning system. In the first air conditioner, the compressor is connected to the prime mover via a clutch, and as the power generation surplus increasing step, the clutch is disengaged while the operation of the prime mover is maintained, and the compressor is removed from the prime mover. clutch OFF step of disconnecting, and air conditioning according to claim 1 for one or both of the supply power reduction step of reducing the supply electric power for supplying generated power of the generator to the power consuming device in the first air conditioner How to start the system. A plurality of the second air conditioners are provided, and a priority order to be activated for the plurality of second air conditioners is set. As the power generation surplus increasing step, the activation target in the second step is set. if the priority than the second air conditioner lower second air conditioner is already running, according to claim 1 or 2 stopping the operation steps of the priority to shut down the lower the second air conditioner How to start the air conditioning system. The first air conditioner includes a compressor heater that is connected to the prime mover through a clutch, and that includes a compressor heater that heats the refrigerant supplied to the compressor by the heat pump circuit. In starting the first air conditioner in the step, the power stored in the power storage device is supplied to the starter motor, the clutch is disengaged and the compressor is disconnected from the prime mover. A starting step of starting the prime mover to which the generator is connected, and driving the generator by the prime mover to supply the generated power of the generator to the compressor heater, or to the power storage device Supplying the stored electric power to the compressor heater, and performing a heating step of heating the refrigerant supplied to the compressor in the heat pump circuit, and then Put the serial clutch connecting the compressor to the prime mover, the air conditioning according to any one of claim 1 to 3, wherein by driving the compressor at the prime mover performs operation step of operating the heat pump circuit How to start the system. The clutch can be set to a plurality of connection patterns for one or both of the capacity and the number of the compressors connected to the prime mover, and selected from the plurality of connection patterns based on a selection condition in the operation step. The clutch is set to one connection pattern, the compressor is connected to the prime mover, and the connection pattern of the clutch is maintained at the connection pattern selected based on the selection condition during operation of the heat pump circuit. 4. A method for starting the air conditioning system according to 4 . The said 2nd air conditioner is not provided with the said generator, The starting method of the air conditioning system of any one of Claims 1-5 which does not have a power generation capability. A plurality of air conditioners having a prime mover for driving a compressor, a heat pump circuit composed of the compressor, the first heat exchanger, an expansion valve, and a second heat exchanger, and a starter motor for starting the prime mover A starter for an air conditioning system equipped with a stand,
As the air conditioner, a first air conditioner including a power storage device in which the compressor and a generator are connected to the prime mover and capable of storing power from a commercial system and power generated by the generator, and the power storage device There is a second air conditioner that does not have
The power generated by the generator in the first air conditioner can be freely supplied to the starter motor in the second air conditioner,
When the supply of power from the commercial system cannot be received, in the first air conditioner, the power stored in the power storage device is supplied to the starter motor and the generator is connected to the starter motor Starting the prime mover, and performing a first step of starting the first air conditioner;
Next, in the second air conditioner, the power generated by the generator in the first air conditioner is supplied to the starter motor, the prime mover is started by the starter motor, and the second air conditioner is started. A system activation control unit for performing the second step is provided ;
Before the system activation control unit performs the second step, the power generation surplus of the generator in the first air conditioner activated in the first step, the activation target in the second step A determination step is performed to determine whether or not the starting power necessary for starting the prime mover in the second air conditioner can be covered, and the starting power can be covered by the generated power by the determination step. If it is determined, the second step is performed, and if it is determined that the starting power cannot be covered by the generated power by the determining step, the generated power capacity increasing step for increasing the generated power capacity is performed. An air-conditioning system activation device that performs the determination step again .

Images