WO2016063362A1

WO2016063362A1 - Control system for air-conditioning device and control method for air-conditioning device

Info

Publication number: WO2016063362A1
Application number: PCT/JP2014/078000
Authority: WO
Inventors: 大村　浩史; ▲高▼田　茂生
Original assignee: 三菱電機株式会社
Priority date: 2014-10-21
Filing date: 2014-10-21
Publication date: 2016-04-28
Also published as: JP6223592B2; GB2545872B; GB2545872C; GB2545872A; GB201706480D0; JPWO2016063362A1

Abstract

A control system for an air-conditioning device controls an air-conditioning device provided with a plurality of heat source machines and a plurality of use-side units. The control system is provided with: a plurality of use-side control devices for controlling the plurality of use-side units, respectively; and a plurality of heat source-side control devices for controlling the plurality of heat source machines, respectively, wherein the use-side control devices respectively communicate with the plurality of heat source-side control devices, and the heat source-side control devices are configured to control the operation of the heat source machines according to the operating state of one or more of the plurality of use-side units that operate in conjunction with the heat source-side control device.

Description

Control system for air conditioner and control method for air conditioner

The present invention relates to an air conditioner control system and an air conditioner control method for controlling an air conditioner including a plurality of heat source units and a plurality of use side units.

2. Description of the Related Art Conventionally, in an air conditioner including a plurality of heat source units and a plurality of use side units, a heat exchange between a primary side heat medium such as a refrigerant and a secondary side heat medium such as water is performed on the secondary side. Some circulate the heat medium to the use side heat exchanger of the use side unit. Such an air conditioner may be referred to as a fan coil air conditioner.
The conventional fan coil type air conditioner consolidates the operation signal of the use side unit (also referred to as fan coil unit), the status signal of the motor operated valve, the status signal of the secondary side pump, and the status signal of the heat source unit into a computer, The number control of the heat source machines is realized (for example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 5-196277 (summary, FIG. 1)

In a conventional fan coil type air conditioner, the use side unit (fan coil unit) and the heat source equipment manufacturer may be different. In this case, depending on the system configuration such as the number of use side units and heat source units, installation conditions, etc., which are different for each property where the air conditioner is installed, the control operation of the control unit that controls the use side unit and the heat source unit There is a problem that it is necessary to set the control operation of the control device to be controlled separately. For example, it is necessary to set each program of a computer that controls the use-side unit and a computer program that controls the heat source unit.

In some cases, a centralized management device that centrally manages a plurality of heat source units and a plurality of usage-side units may be provided. In this case as well, there is a problem that it is necessary to set a program for the centralized management device according to a different system configuration for each property where the air conditioner is installed.

Also, in an air conditioner equipped with a plurality of heat source units and a plurality of use side units, the operating capacity required for the heat source unit may change depending on the operating state of the plurality of use side units. In such a case, there has been a problem that the operation efficiency of the plurality of heat source units is unbalanced, and the system efficiency of the entire system is lowered.

The present invention has been made to solve the above-described problems, and a first object is to integrate the control of the use side unit and the control of the heat source unit so as to be adapted to the system configuration of the air conditioner. It is possible to obtain an air conditioner control system and an air conditioner control method that can eliminate the need for adjustment of contents and can be constructed at low cost.

Moreover, the 2nd objective is the control system of the air conditioning apparatus which can suppress the influence on the utilization side unit of the driving | running | working in which air-conditioning capability fluctuates, such as defrosting control, by carrying out cooperative control of the several heat source machine And the control method of an air conditioning apparatus is obtained.

The control system of the air conditioner according to the present invention includes a plurality of heat source units each having an intermediate heat exchanger for exchanging heat between a primary side heat medium and a secondary side heat medium, and pipe connection to the heat source unit, A plurality of usage-side units each having a usage-side heat exchanger for exchanging heat between the secondary-side heat medium and air, and a control system for the air-conditioning apparatus that controls the air-conditioning apparatus. A plurality of use side control devices that are provided in each of the use side units and respectively control the plurality of use side units, and a plurality of heat sources that are provided in each of the plurality of heat source units and respectively control the plurality of heat source units. A side control device, wherein the use side control device communicates with each of the plurality of heat source side control devices, and the heat source side control device is the heat source side control device of the plurality of use side units. Depending on the operating state of one or more of the use-side unit that work, in which is configured to control the operation of the heat source apparatus.

The control method of the air conditioner according to the present invention includes a plurality of heat source units each having an intermediate heat exchanger for exchanging heat between the primary side heat medium and the secondary side heat medium, and pipe connection to the heat source unit, A plurality of usage-side units each having a usage-side heat exchanger that exchanges heat between the secondary-side heat medium and air, and a plurality of usage-side units that are provided in each of the plurality of usage-side units and control the plurality of usage-side units A control method for an air conditioner, comprising: the use side control device; and a plurality of heat source side control devices that are provided in each of the plurality of heat source units and control the plurality of heat source units, respectively. A use-side control device communicating with each of the plurality of heat-source-side control devices to transmit information on an operating state of the use-side unit; and the heat-source-side control device is connected to the plurality of use-side units. Depending on the operating state of one or more of the use-side unit that work, those having, and controlling the operation of the heat source apparatus.

Since the present invention controls the operation of the heat source unit according to the operating state of one or a plurality of usage-side units that operate in cooperation among the plurality of usage-side units, the control content adapted to the system configuration of the air conditioner Therefore, the system can be constructed at low cost.

1 is a diagram illustrating a configuration of a control system for an air-conditioning apparatus according to Embodiment 1. FIG. It is a figure which shows the structure of the heat source machine in Embodiment 1. FIG. FIG. 3 is a diagram showing a configuration of a fan coil unit in the first embodiment. 3 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. 3 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. 3 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. 3 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. 3 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. 6 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 2. 6 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 2. 6 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 2. 6 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 2.

Embodiment 1 FIG.
(Constitution)
1 is a diagram illustrating a configuration of a control system for an air-conditioning apparatus according to Embodiment 1. FIG.
FIG. 2 is a diagram showing a configuration of the heat source device in the first embodiment.
FIG. 3 is a diagram illustrating a configuration of the fan coil unit according to the first embodiment.
1 to 3, the air conditioner 100 includes a plurality of heat source units 1 and a plurality of indoor units 3.
Each of the plurality of heat source units 1 includes an intermediate heat exchanger 11 that exchanges heat between a primary side heat medium (for example, a refrigerant) and a secondary side heat medium (for example, water). Each of the plurality of indoor units 3 includes a use side heat exchanger 30 that exchanges heat between the secondary heat medium and the air. A plurality of heat source units 1 are connected in parallel to a secondary refrigerant pipe 5 via a pump 2 for circulating a secondary refrigerant. The plurality of indoor units 3 are connected in parallel to the secondary refrigerant pipe 5 via the electric valve 4. The indoor unit 3 corresponds to a “use unit” in the present invention. The indoor unit 3 is also referred to as a fan coil unit (FCU).

Each of the plurality of heat source units 1 includes a compressor 10, a four-way valve 15 that is a flow path switching device, a heat source side heat exchanger 13, a pressure reducing device 12 such as a throttle valve, and an intermediate heat exchanger 11 that are sequentially connected by piping. A refrigerant circuit in which a refrigerant as a primary heat medium circulates is provided. Further, a blower 14 that blows air to the heat source side heat exchanger 13 is provided. In the refrigerant circuit, when the four-way valve 15 is switched, the intermediate heat exchanger 11 acts as a condenser and the heat source side heat exchanger 13 acts as an evaporator, and the intermediate heat exchanger 11 serves as an evaporator. And the heat source side heat exchanger 13 is configured to be switched to any one of operation modes of defrosting operation in which the heat source side heat exchanger 13 acts as a condenser.
Each of the plurality of indoor units 3 includes a use side heat exchanger 30 and a blower 31. The secondary side heat medium (for example, water) flowing through the use side heat exchanger 30 and the indoor air blown by the blower 31 exchange heat.

The control system of the air conditioning apparatus 100 according to Embodiment 1 includes a plurality of heat source side control devices 50 provided in each of the plurality of heat source units 1 and a plurality of usage sides provided in each of the plurality of indoor units 3. And a control device 60. In addition, remote controllers 7 are connected to the plurality of indoor units 3, respectively, and can be operated individually.
The plurality of heat source side control devices 50 and the plurality of use side control devices 60 are connected by a communication transmission line 6.
Note that the integrated controller 8 that is a centralized management device that controls the entire air conditioning apparatus 100 may be connected to the communication transmission line 6.

The heat source side control device 50, the use side control device 60, and the integrated controller 8 can be realized by hardware such as a circuit device that realizes these functions, or are executed on an arithmetic device such as a microcomputer or a CPU. It can also be realized as software.

(Cooperation setting operation)
In the control system of the air conditioner 100 according to the first embodiment, the use side control device 60 communicates with each of the plurality of heat source side control devices 50, and the heat source side control device 50 includes the plurality of indoor units 3. The operation of the heat source unit 1 is controlled in accordance with the operation state of the one or more indoor units 3 that operate in cooperation. The details of such operation will be described below.

The control system of the air conditioning apparatus 100 according to Embodiment 1 determines the correspondence relationship between the heat source unit 1 that operates in cooperation with one or a plurality of indoor units 3, and communicates between the heat source side control device 50 and the use side control device 60. It is set (linked) from the relationship of the business address.
In addition, in the operation | movement which specifies the cooperation relationship of the heat-source equipment 1 and the indoor unit 3 demonstrated below, the integrated controller 8 is not an essential structure and may be abbreviate | omitted.

The communication addresses of the heat source side control device 50 and the use side control device 60 are assigned according to preset assignment conditions.
For example, an address number belonging to a preset first range is set as the communication address of the use-side control device 60, and the assignment condition is a second different from the first range as the communication address of the heat source-side control device 50. An address number belonging to the range is set. And the cooperation relationship between the heat source unit 1 and the indoor unit 3 is determined based on a preset search condition. As this search condition, for example, a preset value is added to or subtracted from the communication address of the heat source side control device 50.
Specifically, an address in the range of “1” to “50” is assigned as the communication address of the use side control device 60 of the indoor unit 3. Further, an address in the range of “51” to “100” is given as a communication address of the heat source side control device 50 of the heat source device 1.
Further, as a search condition, the minimum address of the indoor unit 3 linked to the heat source unit 1 = the communication address−50 of the heat source side control device 50 is set.
Further, an address larger than the maximum address +50 of the indoor unit 3 linked to the heat source unit 1 is given as a communication address of the heat source side control device 50 of another heat source unit 1 (for example, the heat source unit 1 whose address range is adjacent).

Next, the operation in which the heat source side control device 50 of the heat source unit 1 specifies the indoor unit 3 to be linked will be described with reference to FIG.
FIG. 4 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. Hereinafter, a description will be given based on each step of FIG.

Steps S1 to S7 are steps for searching for another heat source unit 1.
In step S1, the heat source side control device 50 confirms the communication address set to itself (hereinafter, self-address), and proceeds to step S2.
In step S2, the heat source side control device 50 sets the search address to self address +1, and proceeds to step S3.
In step S <b> 3, the heat source side control device 50 acquires the communication address of the device connected to the transmission line 6, and determines whether there is a heat source side control device 50 to which a communication address that matches the search address exists. To do. If the condition of step S3 is satisfied, the process proceeds to step S7. If not satisfied, the process proceeds to step S4.

In step S4, the heat source side control device 50 determines whether or not the search address is the maximum value of the range of communication addresses given to the heat source side control device 50. For example, when an address in the range of “51” to “100” is assigned as the communication address of the heat source side control device 50, it is determined whether or not the search address is “100”. If the condition of step S4 is satisfied, the process proceeds to step S6. Otherwise, the process proceeds to step S5.

In step S5, the heat source side control device 50 adds “1” to the search address and returns to step S3.
In step S6, the heat source side control device 50 adds “1” to the search address, and proceeds to step S7.

In step S7, the heat source side control device 50 specifies the number of searches by the calculation formula of the number of searches = search address−self address−1, and proceeds to step S8. For example, when the search address is “61” and the self address is “51”, the number of searches is “9”.

Steps S8 to S12 are steps for searching for the indoor unit 3 to be linked.
In step S8, the heat source side control device 50 sets the search address to self address -50, and proceeds to step S9. For example, when the self address is “51”, the search address is “1”.

In step S9, the heat-source-side control device 50 acquires the communication address of the device connected to the transmission line 6, and determines whether there is a usage-side control device 60 to which a communication address that matches the search address exists. To do. If the condition of step S9 is satisfied, the process proceeds to step S10. If not satisfied, the process proceeds to step S11.

In step S10, the heat-source-side control device 50 communicates with the use-side control device 60 to which the communication address that matches the search address is assigned, and stores the data acquired from the use-side control device 60, for example, in a storage area table. To do. The data acquired from the use side control device 60 includes, for example, a communication address, the driving capability of the indoor unit 3, and the operating mode of the indoor unit 3.

In step S11, the heat source side control device 50 adds “1” to the search address, and proceeds to step S12.
In step S12, the heat source side control device 50 determines whether or not the search address is equal to or less than the self address −50 + the number of searches. If the condition of step S12 is satisfied, the process returns to step S9. If not satisfied, the operation process is terminated. For example, when the self address is “51” and the number of searches is “9”, the operation of searching for the linked indoor unit 3 is repeated until the search address exceeds “10”.
This operation is performed by each of the plurality of heat source side control devices 50.

By such an operation, each of the plurality of heat source side control devices 50 can identify one or a plurality of indoor units 3 that cooperate with the heat source unit 1 that it controls.
Further, in the heat source side control device 50 and the use side control device 60, it is not necessary to set the cooperation relationship between the heat source unit 1 and the indoor unit 3 in advance, and adjustment of the control content adapted to the system configuration of the air conditioner 100 is performed. It can be reduced and the system can be constructed at low cost. For example, even when the manufacturer of the indoor unit 3 (fan coil unit) and the heat source unit 1 are different, adjustment of the control content can be reduced.

(Driving capacity control operation)
Next, the operation for controlling the driving ability of each of the plurality of heat source units 1 will be described separately for the remote controller 7, the indoor unit 3, the heat source unit 1, and the integrated controller 8.

(Remote controller 7)
FIG. 5 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. The operation of the remote controller 7 will be described based on the steps in FIG.
In step S21, the remote controller 7 sets the operation mode setting as the initial state in the stopped state, and proceeds to step S22.
In step S22, the remote controller 7 determines whether or not a driving operation has been performed by the user. If the driving operation has been performed, the process returns to step S23, and if not, the process returns to step S21.

In step S23, the remote controller 7 transmits the instruction information instructing the operating state to the use side control device 60 of the indoor unit 3 that is the operation target of the remote controller 7, and the process proceeds to step S24.
In step S24, it is determined whether or not a stop operation has been performed by the user. If the stop operation has been performed, the process returns to step S25, and if not, the process returns to step S24.
In step S25, the remote controller 7 transmits the instruction information instructing the stop state to the use side control device 60 of the indoor unit 3 that is the operation target of the remote controller 7, and the process returns to step S21.

(Indoor unit 3)
FIG. 6 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. Based on each step of FIG. 6, the operation of the use side control device 60 of the indoor unit 3 will be described.
In step S31, the use-side control device 60 confirms whether or not instruction information has been received from the remote controller 7, and if there is, proceeds to step S32, otherwise returns to step S31.
In step S32, the use side control device 60 transmits state information corresponding to the instruction information to the heat source side control device 50 of the heat source unit 1 that cooperates with the indoor unit 3, and the process proceeds to step S33. That is, if the instruction information is in the operating state, the usage-side control device 60 transmits the operating state information, and if the instruction information is in the stopped state, the usage-side control device 60 transmits the stopped state information.
In step S33, the use side control device 60 performs air volume control of the blower 31 of the indoor unit 3 and open / close control of the motor valve 4 of the secondary refrigerant corresponding to the indoor unit 3 according to the instruction information, and step Return to S31.

(Heat source machine 1)
FIG. 7 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. Based on each step of FIG. 7, operation | movement of the heat-source side control apparatus 50 of the heat-source equipment 1 is demonstrated.
In step S41, the heat source side control device 50 confirms whether or not state information has been received from the use side control device 60 of the cooperating indoor unit 3, and if there is, proceeds to step S42, otherwise proceeds to step S44.

In step S42, based on the received state information, the heat source side control device 50 extracts the indoor unit 3 whose operating state is the operating state from the one or more indoor units 3 that operate in cooperation, and The total driving ability which is the total value of the driving ability of the machine 3 is obtained, and the process proceeds to step S43.
In step S43, the heat source side control device 50 transmits information on the total operating capacity to the integrated controller 8, and proceeds to step S44.

In step S44, the heat source side control device 50 confirms whether or not information on the total operation capability for control described later has been received from the integrated controller 8, and if there is, proceeds to step S46, otherwise proceeds to step S45.
In step S45, the heat-source-side control device 50 substitutes and uses the total operating capacity calculated in step S42 as the control total operating capacity, and proceeds to step S46.

In step S46, the heat source side control device 50 controls the number of rotations of the compressor 10 of the heat source unit 1, the amount of blown air from the blower 14, and the rotation of the pump 2 of the secondary refrigerant according to the total operating capacity for control. Control the amount of energy supplied from the heat source unit 1 to the secondary refrigerant, such as the number, and return to step S41.
That is, when the heat source side control device 50 receives information on the total operation capability for control from the integrated controller 8, the operation capability of the heat source apparatus 1 is controlled according to the total operation capability for control. On the other hand, when the information on the total operating capacity for control is not received from the integrated controller 8, the operating capacity of the heat source unit 1 is controlled according to the total operating capacity obtained by itself.

(Integrated controller 8)
FIG. 8 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 1. The operation of the integrated controller 8 will be described based on the steps in FIG.
In step S51, the integrated controller 8 confirms whether information on the total operating capacity has been received from the heat source side control device 50 of each heat source machine 1, and if there is, proceeds to step S53, and if not, proceeds to step S52.
In step S52, the integrated controller 8 determines whether or not a predetermined period preset as a reception waiting period has elapsed. If the predetermined time has not elapsed, the process returns to step S51, and if it has elapsed, the process proceeds to step S53. .

In step S53, the integrated controller 8 calculates the total capacity for control obtained by distributing the total of the total operation capacity acquired from each of the heat source side control devices 50 of each heat source apparatus 1 to each of the plurality of heat source apparatuses 1. Proceed to S54.
The calculation of the total operating capacity for control is, for example, distributed including the provision of the heat source unit 1 forcibly stopped so that the heat source unit 1 can operate as efficiently as possible, or during heating by defrost control. Corresponding to the generation of the heat source unit 1 that operates in the cooling state, the heating capacity + defrosting capacity shared by the heat source unit 1 in the defrosting operation so that the total heating capacity is satisfied, Or distribute to 1.

For example, when the heat source device 1 whose operation mode is the heating operation and the heat source device 1 whose operation mode is the defrosting operation are mixed, the integrated controller 8 calculates the total of the total operation capacity and the operation mode is the heating operation. The total operating capacity for control, which is apportioned to the heat source unit 1, is obtained.
In addition, the calculation method of the total driving capability for control is not limited to this. For example, the total of the total operating capacity may be equally distributed to each of the plurality of heat source devices 1. Moreover, you may apportion the sum total of total operation capability by the ratio according to the heat exchange capacity etc. of each heat source unit 1. Further, the total of the total driving ability may be prorated according to an arbitrarily set weighting coefficient or the like.

In step S54, the integrated controller 8 transmits information on the total operation capability for control to the heat source side control device 50 of each heat source machine 1, and returns to step S51.

As described above, the control system of the air conditioning apparatus 100 according to Embodiment 1 is configured to provide the use-side control device 60 in the indoor unit 3 and perform control in cooperation with the heat source-side control device 50 of the heat source unit 1 through communication. I have to. For this reason, in the fan coil type (water type) air conditioner 100, including the remote controller 7 and the integrated controller 8, the same system design as the conventional direct expansion type air conditioner 100 can be easily made possible. .
Furthermore, not only can the components such as the remote controller 7 and the integrated controller 8 developed for the direct expansion system be shared and effectively used, but it is also easy to construct a mixed system of the fan coil system and the direct expansion system. .
Moreover, a simple system construction can be realized by defining the relationship of cooperation between the indoor unit 3 and the heat source unit 1. Furthermore, since the total operating capacity for control is obtained by the integrated controller 8 and the operating capacity of each heat source apparatus 1 is apportioned, efficient operation of the heat source apparatus 1 can be realized.
In addition, the use-side control device 60 improves the degree of freedom in selecting the main body of the indoor unit 3 and makes it easy to combine those having a special shape and ability according to the property.

Embodiment 2. FIG.
In the said Embodiment 1, the correspondence of the heat source machine 1 which operate | moves in cooperation with the indoor unit 3 was set by cooperation setting operation | movement. In this Embodiment 2, the operation | movement which does not implement the operation | movement which specifies the cooperation relationship between the indoor unit 3 and the heat-source unit 1 is demonstrated.
The control system of the air conditioner 100 according to the second embodiment includes, for example, the indoor unit 3 and the heat source based on the address arrangement, such as a large-scale property in which the number of the indoor units 3 and the heat source unit 1 exceeds the communication address setting range. This is effective when the cooperation rule of the machine 1 cannot be set.

The configuration of the control system of the air conditioning apparatus 100 in the second embodiment is the same as that in the first embodiment, and the same reference numerals are given to the same parts.
Note that the communication address assignment condition and the cooperation setting operation described in the first embodiment may be omitted, and an arbitrary communication address may be set. In the second embodiment, the integrated controller 8 is an essential component requirement.

(Driving capacity control operation)
Hereinafter, the operation for controlling the driving ability of each of the plurality of heat source units 1 will be described separately for the remote controller 7, the indoor unit 3, the integrated controller 8, and the heat source unit 1.

(Remote controller 7)
FIG. 9 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 2. Based on each step of FIG. 9, the operation of the remote controller 7 will be described.
In step S61, the remote controller 7 is set to the stop state as the initial state of the operation mode setting, and proceeds to step S62.
In step S62, the remote controller 7 determines whether or not a driving operation has been performed by the user. If the driving operation has been performed, the process returns to step S63, and if not, the process returns to step S61.

In step S63, the remote controller 7 transmits instruction information for instructing an operation state to the use side control device 60 of the indoor unit 3 to be operated by the remote controller 7 and the integrated controller 8, and the process proceeds to step S64. move on.
In step S64, it is determined whether or not a stop operation has been performed by the user. If the stop operation has been performed, the process returns to step S65, and if not, the process returns to step S64.
In step S65, the remote controller 7 transmits the instruction information instructing the stop state to the use side control device 60 of the indoor unit 3 and the integrated controller 8 that are to be operated by the remote controller 7, and the process proceeds to step S61. Return.

(Indoor unit 3)
FIG. 10 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 2. Based on each step of FIG. 10, operation | movement of the utilization side control apparatus 60 of the indoor unit 3 is demonstrated.
In step S71, the use side control device 60 confirms whether or not the instruction information has been received from the remote controller 7, and if there is, proceeds to step S72, otherwise returns to step S71.
In step S72, the use-side control device 60 performs the air volume control of the blower 31 of the indoor unit 3 and the opening / closing control of the motor valve 4 of the secondary refrigerant corresponding to the indoor unit 3 according to the instruction information. Return to S71.

(Integrated controller 8)
FIG. 11 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 2. The operation of the integrated controller 8 will be described based on the steps in FIG.
In step S81, the integrated controller 8 confirms whether instruction information has been received from the remote controller 7, and if there is, proceeds to step S82, otherwise returns to step S81.

In step S82, the integrated controller 8 is a total value of the driving capabilities of the indoor units 3 whose operation state is the operating state among the plurality of indoor units 3 based on the instruction information acquired from each of the plurality of remote controllers 7. Find a certain grand total driving ability. Then, the integrated controller 8 calculates the total capacity for control obtained by apportioning the total meter operating capacity to each of the plurality of heat source units 1, and proceeds to Step S83.
The calculation of the total operating capacity for control is, for example, distributed including the provision of the heat source unit 1 forcibly stopped so that the heat source unit 1 can operate as efficiently as possible, or during heating by defrost control. Corresponding to the generation of the heat source unit 1 that operates in the cooling state, the heating capacity + defrosting capacity shared by the heat source unit 1 in the defrosting operation so that the total heating capacity is satisfied, Or distribute to 1.

For example, when the heat source device 1 whose operation mode is the heating operation and the heat source device 1 whose operation mode is the defrosting operation coexist, the integrated controller 8 has the total operation capacity and the heat source whose operation mode is the heating operation. The total operating capacity for control, which is apportioned to the machine 1, is obtained.
In addition, the calculation method of the total driving capability for control is not limited to this. For example, the total operation capacity may be equally distributed to each of the plurality of heat source units 1. Further, the total operation capacity may be apportioned at a ratio according to the heat exchange capacity of each heat source unit 1. Further, the total operation capacity may be prorated according to an arbitrarily set weighting coefficient or the like.

In step S83, the integrated controller 8 transmits information on the total operation capability for control to the heat source side control device 50 of each heat source machine 1, and returns to step S81.

(Heat source machine 1)
FIG. 12 is a flowchart for explaining the operation of the control system for the air-conditioning apparatus according to Embodiment 2. Based on each step of FIG. 12, operation | movement of the heat-source side control apparatus 50 of the heat-source equipment 1 is demonstrated.
In step S91, the heat source side control device 50 confirms whether or not the information on the total operating capability for control has been received from the integrated controller 8, and if there is, proceeds to step S92, otherwise returns to step S91.

In step S92, the heat source side control device 50 controls the number of rotations of the compressor 10 of the heat source unit 1, the amount of blown air of the blower 14, and the rotation of the pump 2 of the secondary refrigerant according to the total operating capacity for control. Control the amount of energy supplied from the heat source unit 1 to the secondary refrigerant, such as the number, and return to step S91.

As described above, the control system of the air conditioning apparatus 100 according to the second embodiment has the use-side control device 60 installed in the indoor unit 3 and the integrated controller 8 is appropriate according to the operating state of many indoor units 3. The operation control of the heat source machine 1 is performed. For this reason, the conventional direct expansion including the remote controller 7 and the integrated controller 8 in the fan coil type (water type) air conditioner 100 without any restrictions on the number of connected indoor units 3 and the address setting of each device. The system design similar to that of the air conditioner can be easily made possible.
In addition, the remote controller 7 and the integrated controller 8 developed for direct expansion can be shared and used effectively, and it is easy to build a mixed system of fan coil and direct expansion systems. Become.
In addition, efficient operation of the heat source unit 1 can be realized by the optimal allocation of the capability to each heat source unit 1 by the integrated controller 8.
In addition, the use-side control device 60 improves the degree of freedom in selecting the main body of the indoor unit 3 and makes it easy to combine those having a special shape and ability according to the property.

In the description of the first and second embodiments, the case where the configuration of the heat source unit 1 includes the refrigerant circuit in which the refrigerant circulates has been described. However, the configuration of the heat source unit 1 is not limited to this. Needless to say, it can be used not only for the air-cooled heat pump chiller but also for other heat source devices 1 such as a water-cooled heat pump chiller and an absorption chiller. Further, the secondary heat medium is not limited to water. Needless to say, the indoor unit 3 is applicable not only to a 2-tube type but also to a 4-pipe type.
In addition, although Embodiment 1 and 2 demonstrated heating operation and defrosting operation, it cannot be overemphasized that it can comprise similarly in cooling operation.

1 heat source machine, 2 pump, 3 indoor unit, 4 motorized valve, 5 secondary refrigerant piping, 6 transmission line, 7 remote controller, 8 integrated controller, 10 compressor, 11 intermediate heat exchanger, 12 decompression device, 13 heat source side Heat exchanger, 14 blower, 15 four-way valve, 30 usage side heat exchanger, 31 blower, 50 heat source side control device, 60 usage side control device, 100 air conditioner.

Claims

A plurality of heat source units each having an intermediate heat exchanger for exchanging heat between the primary side heat medium and the secondary side heat medium;
A plurality of usage-side units each having a usage-side heat exchanger that is pipe-connected to the heat source unit and exchanges heat between the secondary-side heat medium and the air. A control system,
A plurality of usage-side control devices that are provided in each of the plurality of usage-side units and control the plurality of usage-side units;
A plurality of heat source side control devices that are provided in each of the plurality of heat source units and control the plurality of heat source units, respectively.
The use side control device communicates with each of the plurality of heat source side control devices,
The heat source side control device controls the operation of the heat source unit according to the operation state of one or a plurality of the use side units operating in cooperation with the heat source side control device among the plurality of use side units. A configured control system for an air conditioner.
In the use side control device, a communication address of the use side control device is preset,
In the heat source side control device, a communication address of the heat source side control device is preset,
Based on the communication address of the heat source side control device and a preset search condition, the communication address of the usage side control device of the usage side unit that operates in conjunction with the heat source unit among the plurality of usage side units is set. Search
The control system of the air conditioning apparatus of Claim 1 comprised so that operation | movement of the said heat-source unit might be controlled according to the driving | running state of the said utilization side unit which carries out the interlock | cooperation operation | movement with the said heat-source unit.
The heat source side control device acquires information on the operating state of the usage side unit from the usage side control device of one or a plurality of usage side units operating in cooperation among the plurality of usage side units,
Among the one or more usage-side units that operate in cooperation, a total driving capability that is a total value of the driving capabilities of the usage-side units whose operation state is the driving state is obtained,
The control system of the air conditioning apparatus of Claim 1 or 2 comprised so that the operation capability of the said heat source machine might be controlled according to the said total operation capability.
A central management device that communicates with each of the plurality of heat source side control devices;
The centralized management device is configured to obtain a total operation capability for control obtained by apportioning a total of the total operation capability acquired from each of the plurality of heat source side control devices to each of the plurality of heat source units,
The heat source side control device is configured to control the operation capability of the heat source unit according to the total operation capability for control when the information of the total operation capability for control is acquired from the centralized management device. Item 4. A control system for an air conditioner according to Item 3.
Each of the plurality of heat source machines is
A compressor, a flow path switching device, a heat source side heat exchanger, a decompression device, and the intermediate heat exchanger are sequentially connected by piping, and a refrigerant circuit in which a refrigerant as the primary heat medium circulates is provided.
The heat source side control device controls the flow path switching device to cause the intermediate heat exchanger to act as a condenser, and to perform a heating operation in which the heat source side heat exchanger acts as an evaporator, and the intermediate heat exchange And a defrosting operation in which the heat source side heat exchanger acts as a condenser, and the operation mode is switched to any one of the operation modes.
The centralized management device, when the heat source machine whose operation mode is the heating operation and the heat source machine whose operation mode is the defrosting operation are mixed,
The control system for an air conditioner according to claim 4, wherein the control total operation capacity for control is obtained by apportioning the total of the total operation capacity to the heat source machine whose operation mode is the heating operation.
A centralized management device that communicates with each of the plurality of heat source side control devices;
A plurality of remote controllers that are provided in each of the plurality of usage-side units and communicate with the usage-side control device and the centralized management device;
The plurality of remote controllers transmit instruction information for instructing an operation state of the usage-side unit to the usage-side control device and the centralized management device,
The usage-side control device controls the usage-side unit according to the instruction information,
The centralized management device, based on the instruction information acquired from each of the plurality of remote controllers, of the plurality of usage-side units, the total value of the driving capacity of the usage-side unit whose operation state is the driving state Seeking total grand total driving ability,
The total operation capacity for control is obtained by distributing the total operation capacity to each of the plurality of heat source units,
The heat source side control device is configured to control the operation capability of the heat source unit according to the total operation capability for control when the information of the total operation capability for control is acquired from the centralized management device. Item 3. A control system for an air conditioner according to Item 1 or 2.
A plurality of heat source units each having an intermediate heat exchanger for exchanging heat between the primary side heat medium and the secondary side heat medium;
A plurality of usage-side units each having a usage-side heat exchanger that is pipe-connected to the heat source unit and exchanges heat between the secondary side heat medium and air;
A plurality of usage-side control devices that are provided in each of the plurality of usage-side units and control the plurality of usage-side units;
A plurality of heat source side control devices that are provided in each of the plurality of heat source units and control the plurality of heat source units, respectively,
The use side control device communicates with each of the plurality of heat source side control devices to transmit information on the operating state of the use side unit;
The heat source side control device includes a step of controlling the operation of the heat source unit in accordance with an operation state of one or a plurality of the usage side units operating in cooperation among the plurality of usage side units. Control method.