Air conditioning unit control method and device, computer equipment and storage medium

Abstract

The invention relates to an air conditioning unit control method and device, computer equipment and a storage medium. The method comprises the steps that according to operation parameters of different air conditioning units in the air conditioner room, the calculation opening degree corresponding to the resource demand quantity of each air conditioning unit is determined, the final target opening degree of the air conditioning units is determined by combining the comparison relation between the calculation opening degree and the actual opening degree, and a resource control switch is controlled according to the target opening degree. Therefore, refrigeration resources meeting the resource demand are provided for the air conditioning unit, and the problem that an existing air conditioning unit control system cannot dynamically adjust the usage amount of the refrigeration resources based on the operation load, and resource excess or resource insufficiency is easily caused is solved.

Description

Technical Field

[0001] The present application relates to the technical field of air-conditioning room control, and in particular to an air-conditioning unit control method, device, computer equipment and storage medium. Background Art

[0002] Screw units are widely used in various harsh working conditions such as high-temperature heat pumps, low-temperature refrigeration and refrigeration, and special occasions with large operating pressure ratios because of their high pressure ratio, high reliability and wide load adjustment range. For computer room control, especially high-efficiency computer room systems, a strategy of using several units for use and several units for backup is generally adopted, and different units have different operating loads, and the required amount of refrigeration resources is also different. However, the current air conditioning unit control system cannot dynamically adjust the use of refrigeration resources based on the operating load, which can easily lead to excess or insufficient resources. Summary of the invention

[0003] The present application provides an air conditioning unit control method, device, computer equipment and storage medium to solve the problem that the existing air conditioning unit control system cannot dynamically adjust the usage of refrigeration resources based on the operating load, which easily causes excess or insufficient resources.

[0004] In a first aspect, the present application provides an air conditioning unit control method, the method comprising:

[0005] Obtain the operating parameters of different air-conditioning units in the air-conditioning room;

[0006] Determining a calculated opening corresponding to the air-conditioning unit according to an operating parameter of the air-conditioning unit, wherein the calculated opening is used to indicate a resource demand corresponding to the air-conditioning unit;

[0007] Determining a target opening corresponding to the air conditioning unit according to a comparison relationship between a current opening of a resource control switch in an operating parameter of the air conditioning unit and the calculated opening;

[0008] The resource control switch corresponding to the air-conditioning unit is controlled according to the target opening degree to provide the air-conditioning unit with refrigeration resources corresponding to the resource demand.

[0009] Optionally, determining the calculated opening degree corresponding to the air-conditioning unit according to the operating parameters of the air-conditioning unit includes:

[0010] The calculated opening degree corresponding to the air-conditioning unit is determined according to the unit operating load, the current suction superheat and the current opening degree in the corresponding operating parameters of the air-conditioning unit.

[0011] Optionally, determining the calculated opening corresponding to the air-conditioning unit according to the unit operating load, current suction superheat and current opening in the corresponding operating parameters of the air-conditioning unit includes:

[0012] Determine a load ratio value according to a first ratio between the unit operating load and the unit full load, multiplied by a first adjustment coefficient and the current opening;

[0013] Determine the suction ratio value according to the product of the second ratio between the current suction superheat and the full-load suction superheat, the second adjustment coefficient and the current opening;

[0014] The calculated opening corresponding to the air conditioning unit is determined according to the sum of the load ratio value, the air intake ratio value and the current opening.

[0015] Optionally, determining the target opening corresponding to the air-conditioning unit according to a comparison relationship between the current opening of the resource control switch in the operating parameters of the air-conditioning unit and the calculated opening includes:

[0016] When the calculated opening is less than or equal to the current opening, determining the terminal temperature difference according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit;

[0017] When the terminal temperature difference is greater than or equal to a first preset temperature difference, and the evaporating temperature is greater than or equal to a first preset temperature, the calculated opening is used as a target opening corresponding to the air-conditioning unit.

[0018] Optionally, when the calculated opening is less than or equal to the current opening, after determining the terminal temperature difference according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit, the method further includes:

[0019] When the terminal temperature difference is less than a first preset temperature difference, and / or the evaporating temperature is less than a first preset temperature, the current opening degree is used as a target opening degree corresponding to the air-conditioning unit.

[0020] Optionally, determining the target opening corresponding to the air-conditioning unit according to a comparison relationship between the current opening of the resource control switch in the operating parameters of the air-conditioning unit and the calculated opening includes:

[0021] When the calculated opening is greater than the current opening, the terminal temperature difference is determined according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit;

[0022] When the terminal temperature difference is less than or equal to the second preset temperature difference, and the evaporating temperature is less than or equal to the second preset temperature, the calculated opening degree is used as the target opening degree corresponding to the air-conditioning unit.

[0023] Optionally, when the calculated opening is greater than the current opening, after determining the terminal temperature difference according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit, the method further comprises:

[0024] When the terminal temperature difference is greater than a second preset temperature difference, and / or the evaporating temperature is greater than a second preset temperature, the current opening degree is used as a target opening degree corresponding to the air-conditioning unit.

[0025] In a second aspect, the present application provides an air conditioning unit control device, the device comprising:

[0026] An acquisition module is used to obtain the operating parameters of different air-conditioning units in the air-conditioning room;

[0027] A calculation module, used to determine a calculated opening corresponding to the air-conditioning unit according to the operating parameters of the air-conditioning unit, wherein the calculated opening is used to indicate a resource demand corresponding to the air-conditioning unit;

[0028] A determination module, configured to determine a target opening corresponding to the air-conditioning unit according to a comparison relationship between a current opening of a resource control switch in an operating parameter of the air-conditioning unit and the calculated opening;

[0029] The control module is used to control the resource control switch corresponding to the air-conditioning unit according to the target opening degree, so as to provide the air-conditioning unit with refrigeration resources corresponding to the resource demand.

[0030] In a third aspect, the present application provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned air conditioning unit control method when executing the computer program.

[0031] In a fourth aspect, the present application further provides a computer storage medium storing computer executable instructions, wherein the computer executable instructions are used to execute the above-mentioned air conditioning unit control method.

[0032] The above-mentioned technical scheme provided by the embodiment of the present application has the following advantages over the prior art: the method provided by the embodiment of the present application obtains the operating parameters of different air-conditioning units in the air-conditioning room; determines the calculated opening corresponding to the air-conditioning unit according to the operating parameters of the air-conditioning unit, wherein the calculated opening is used to indicate the resource demand corresponding to the air-conditioning unit; determines the target opening corresponding to the air-conditioning unit according to the comparison relationship between the current opening of the resource control switch in the operating parameters of the air-conditioning unit and the calculated opening; controls the resource control switch corresponding to the air-conditioning unit according to the target opening, and provides the air-conditioning unit with refrigeration resources corresponding to the resource demand.

[0033] Based on the above method, the calculated opening corresponding to the resource demand of each air-conditioning unit is determined for the operating parameters of different air-conditioning units in the air-conditioning room, and the final target opening of the air-conditioning unit is determined by combining the comparison relationship between the calculated opening and the actual opening. The resource control switch is controlled according to the target opening, so as to provide the air-conditioning unit with refrigeration resources that meet the resource demand, thereby solving the problem that the existing air-conditioning unit control system cannot dynamically adjust the usage of refrigeration resources based on the operating load, which easily causes excess or insufficient resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0036] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0037] Figure 1 An application environment diagram of an air conditioning unit control method provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the connection structure between each air-conditioning unit and the refrigeration resource storage device provided in the embodiment of the present application;

[0039] Figure 3 A flow chart of an air conditioning unit control method provided in an embodiment of the present application;

[0040] Figure 4 A structural block diagram of an air conditioning unit control device provided in an embodiment of the present application;

[0041] Figure 5 A schematic diagram of the internal structure of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0043] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0044] Figure 1 FIG. 1 is an application environment diagram of an air conditioning unit control method in an embodiment. Figure 1 The air conditioning unit control method is applied to an air conditioning unit control system. The air conditioning unit control system includes a plurality of different air conditioning units 110, an air conditioning unit control device 120 and a refrigeration resource storage device 130 in an air conditioning room. The air conditioning unit 110 is connected to the refrigeration resource storage device 130 through a connecting pipe. The air conditioning unit 110 and the refrigeration resource storage device 130 are respectively connected to the air conditioning unit control device 120 through a network. Figure 2 The input end and the output end of each air-conditioning unit 110 are respectively connected to the refrigeration resource storage device 130 through connecting pipelines, and each connecting pipeline is provided with a solenoid valve F and / or a refrigerant pump B.

[0045] The air conditioning unit control device 120 is used to intelligently control the circulation amount of the refrigeration resources of the air conditioning unit 110 according to the actual operation status of each air conditioning unit 110. For the group control room, since there are multiple air conditioning units 110 running at the same time in the entire room. Therefore, the operating status of different air conditioning units 110 is different. Assume that there are 5 air conditioning units 110 running at the same time in the air conditioning room, and the five air conditioning units 110 are running under different load conditions. At this time, the demand for refrigeration resources of these five air conditioning units 110 will be different in different states. If all the refrigeration resources are matched according to the full load state, there will be a problem of excessive refrigeration resource infusion of the air conditioning unit 110 under a small load state, which affects the capacity and energy efficiency of the entire air conditioning room.

[0046] However, the air conditioning unit control device 120 will match different refrigeration resource injection amounts according to the different operating states of the air conditioning units 110 in the air conditioning room. For example, among the five air conditioning units 110 operating in the air conditioning room, two air conditioning units 110 are in full load operation. At this time, the refrigeration resource operation amount in the full load state will be supplied. At the same time, the other three units are respectively operating at 75%, 50% and 30% load states, and the refrigeration resource operation amounts in the states of 75%, 50% and 30% will be provided respectively. This ensures that the entire air conditioning room is in a high-efficiency operation state.

[0047] In one embodiment, Figure 2 is a flow chart of a method for controlling an air conditioning unit in an embodiment, referring to Figure 2 , provides an air conditioning unit control method. This embodiment mainly applies this method to the above Figure 1 Taking the air conditioning unit control device 120 in the example as an example, the air conditioning unit control method specifically includes the following steps:

[0048] Step S210, obtaining operating parameters of different air-conditioning units 110 in the air-conditioning room.

[0049] Specifically, each air-conditioning unit 110 corresponds to an operating parameter, and the operating parameters include at least the actual evaporation temperature, suction superheat, operating load, current opening, etc. of the unit, that is, the operating parameters are used to indicate the load state of the air-conditioning unit 110, and the current opening refers to the opening of the resource control switch in the connecting pipeline currently corresponding to the air-conditioning unit 110. The resource control switch is the above-mentioned solenoid valve and / or refrigerant pump. The opening of the resource control switch is used to determine the amount of refrigeration resources provided to the air-conditioning unit 110. The refrigeration resources are at least one of refrigerant, refrigeration oil, and chilled water.

[0050] Step S220 , determining a calculated opening degree corresponding to the air-conditioning unit 110 according to the operating parameters of the air-conditioning unit 110 , wherein the calculated opening degree is used to indicate a resource demand corresponding to the air-conditioning unit 110 .

[0051] Specifically, the calculated opening corresponding to the resource demand of the air-conditioning unit 110 under the current load state is calculated according to the operating parameters of the air-conditioning unit 110, that is, the resource control switch of the air-conditioning unit 110 is at the calculated opening to provide the refrigeration resources of the resource demand for the air-conditioning resources.

[0052] Step S230 , determining a target opening corresponding to the air conditioning unit 110 according to a comparison relationship between the current opening of the resource control switch in the operating parameters of the air conditioning unit 110 and the calculated opening.

[0053] Specifically, it is necessary to determine the final target opening by combining the comparison relationship between the actual current opening of the resource control switch and the calculated opening, that is, to judge whether it is necessary to control the resource control switch according to the calculated opening as the target opening, or to control the resource control switch according to the current opening as the target opening.

[0054] Step S240 , controlling the resource control switch corresponding to the air-conditioning unit 110 according to the target opening degree, and providing the air-conditioning unit 110 with refrigeration resources corresponding to the resource demand.

[0055] Specifically, the resource control switch is controlled according to the target opening, so as to provide the air-conditioning unit 110 with refrigeration resources that meet the resource demand, thereby solving the problem that the existing air-conditioning unit control system cannot dynamically adjust the usage of refrigeration resources based on the operating load, which easily causes excess or insufficient resources.

[0056] In one embodiment, determining the calculated opening degree corresponding to the air-conditioning unit 110 according to the operating parameters of the air-conditioning unit 110 includes:

[0057] The calculated opening degree corresponding to the air-conditioning unit 110 is determined according to the unit operating load, the current suction superheat and the current opening degree in the corresponding operating parameters of the air-conditioning unit 110 .

[0058] Specifically, the unit operating load is the current actual operating load of the air-conditioning unit 110, and the current suction superheat refers to the current actual suction superheat of the air-conditioning unit 110. The actual operating load, the current suction superheat and the current opening are combined to predict the corresponding calculated opening of the air-conditioning unit 110, that is, to predict the resource demand required by the air-conditioning unit 110 under the current operating load, that is, the calculated opening is used to indicate the current resource demand of the air-conditioning unit 110 for refrigeration resources, so that the subsequent dynamic adjustment of the refrigeration resource injection amount for the air-conditioning unit 110 according to the operating load can be achieved.

[0059] In one embodiment, determining the calculated opening corresponding to the air conditioning unit 110 according to the unit operating load, current suction superheat and current opening in the corresponding operating parameters of the air conditioning unit 110 includes:

[0060] Determine a load ratio value according to a first ratio between the unit operating load and the unit full load, multiplied by a first adjustment coefficient and the current opening;

[0061] Determine the suction ratio value according to the product of the second ratio between the current suction superheat and the full-load suction superheat, the second adjustment coefficient and the current opening;

[0062] The calculated opening corresponding to the air-conditioning unit 110 is determined according to the sum of the load ratio value, the air intake ratio value and the current opening.

[0063] Specifically, the unit operating load is recorded as Q, the unit full load is recorded as Q1, the first adjustment coefficient is recorded as a, the current opening is recorded as D1, the current suction superheat is recorded as T, the full load suction superheat is recorded as T1, the second adjustment coefficient is recorded as b, the load ratio value is a*(Q / Q1)*D1, the suction ratio value is b*(T / T1)*D1, and the calculated opening is D2=a*(Q / Q1)*D1+b*(T / T1)*D1+D1. In this way, the operating load of the air-conditioning unit 110, the suction superheat and the current opening are combined to accurately calculate the calculated opening corresponding to the air-conditioning unit 110 under the current operating conditions, thereby improving the accuracy of the calculated opening, thereby improving the accuracy of the subsequent refrigeration resource input.

[0064] In one embodiment, the determining of the target opening corresponding to the air conditioning unit 110 according to the comparison relationship between the current opening of the resource control switch in the operating parameters of the air conditioning unit 110 and the calculated opening includes:

[0065] When the calculated opening is less than or equal to the current opening, the terminal temperature difference is determined according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit 110;

[0066] When the terminal temperature difference is greater than or equal to the first preset temperature difference, and the evaporation temperature is greater than or equal to the first preset temperature, the calculated opening degree is used as the target opening degree corresponding to the air-conditioning unit 110 .

[0067] Specifically, when D2≤D1, it is necessary to determine whether the air-conditioning unit 110 has excess refrigeration resources in combination with the terminal temperature difference between the unit refrigeration water outlet temperature and the evaporation temperature of the air-conditioning unit 110, and then determine the target opening degree. a , and the evaporation temperature t z Greater than or equal to the first preset temperature t a When △Δt≥Δt a , and t z ≥t a , indicating that there are excess refrigeration resources in the air-conditioning unit 110, and the opening of the resource control switch needs to be reduced. Therefore, the calculated opening with a smaller value is used as the target opening to control the resource control switch of the air-conditioning unit 110. The excess refrigeration resources already in the air-conditioning unit 110 and the predicted resource demand are combined to provide refrigeration resources for the air-conditioning unit 110, thereby reducing the amount of refrigeration resources injected into the air-conditioning unit 110, which can not only save refrigeration resources, but also improve the utilization rate of refrigeration resources, ensuring that the air-conditioning unit 110 is in a high-efficiency operation state.

[0068] In one embodiment, when the calculated opening is less than or equal to the current opening, after determining the terminal temperature difference according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit 110, the method further includes:

[0069] When the terminal temperature difference is less than the first preset temperature difference, and / or the evaporation temperature is less than the first preset temperature, the current opening degree is used as the target opening degree corresponding to the air-conditioning unit 110 .

[0070] Specifically, when D2≤D1, but Δt<Δt a , and / or t z <t a , it means that the air-conditioning unit 110 has no excess refrigeration resources at this time. The air-conditioning unit 110 can achieve the best operating state through self-regulation. There is no need to adjust the refrigeration resources of the air-conditioning unit 110. The current opening is maintained unchanged. Therefore, the current opening is selected as the target opening to control the resource control switch of the air-conditioning unit 110.

[0071] In one embodiment, the determining of the target opening corresponding to the air conditioning unit 110 according to the comparison relationship between the current opening of the resource control switch in the operating parameters of the air conditioning unit 110 and the calculated opening includes:

[0072] When the calculated opening is greater than the current opening, the terminal temperature difference is determined according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit 110;

[0073] When the terminal temperature difference is less than or equal to the second preset temperature difference, and the evaporation temperature is less than or equal to the second preset temperature, the calculated opening degree is used as the target opening degree corresponding to the air-conditioning unit 110 .

[0074] Specifically, when D2>D1, it is also necessary to combine the terminal temperature difference between the chilled water outlet temperature and the evaporation temperature of the air-conditioning unit 110 to determine whether the air-conditioning unit 110 has excess refrigeration resources, and then determine the target opening degree. b , and the evaporation temperature t z Less than or equal to the second preset temperature t b When Δt≤Δt b , and t z ≤t b, indicating that the air-conditioning unit 110 has no excess refrigeration resources and cannot increase the amount of refrigeration resources filled by itself. It is necessary to increase the opening of the resource control switch. Therefore, the calculated opening with a larger value is used as the target opening to control the resource control switch of the air-conditioning unit 110. The existing excess refrigeration resources of the air-conditioning unit 110 and the predicted resource demand are combined to provide refrigeration resources for the air-conditioning unit 110. When the refrigeration resources are insufficient, the amount of refrigeration resources filled to the air-conditioning unit 110 is increased to avoid reducing the operating energy efficiency of the air-conditioning resources due to insufficient refrigeration resources.

[0075] In one embodiment, when the calculated opening is greater than the current opening, after determining the terminal temperature difference according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit 110, the method further includes:

[0076] When the terminal temperature difference is greater than a second preset temperature difference, and / or the evaporating temperature is greater than a second preset temperature, the current opening degree is used as a target opening degree corresponding to the air-conditioning unit 110 .

[0077] Specifically, when D2>D1, but Δt>Δt b , and / or t z >t b , it means that the air-conditioning unit 110 has excess refrigeration resources to supplement the refrigeration resources required by the air-conditioning unit 110 under the current load. The air-conditioning unit 110 can achieve the best operating state through self-regulation, and there is no need to adjust the amount of refrigeration resources of the air-conditioning unit 110. The current opening is maintained unchanged, and the current opening is selected as the target opening to control the resource control switch of the air-conditioning unit 110.

[0078] Through the above control method, it can be ensured that each air-conditioning unit 110 in the air-conditioning room can maintain the best refrigerant operating state under different working conditions, ensuring the continuous safe and efficient operation of the entire air-conditioning room.

[0079] On this basis, compared with the traditional individual control of refrigerant and refrigerating oil in the unit, the invention can realize the coordination and control of the refrigerant and refrigerating oil resources of the entire unit. Generally speaking, the total refrigerant and refrigerating oil filling amount of the air-conditioning unit 110 can be reduced. Especially for the standby unit, refrigerant and refrigerating oil can be allocated from other air-conditioning units 110 for use during operation, which reduces the operating cost of the entire air-conditioning room. In addition, when an abnormality occurs in an air-conditioning unit 110 in the room, the refrigerating oil and refrigerant can be directly recovered into the connecting pipeline to circulate for providing refrigeration resources for other air-conditioning units 110. There is no need to specially recover refrigerant and refrigerating oil as in the traditional method, which facilitates the maintenance and repair of the air-conditioning unit 110, saves maintenance costs, and improves maintenance efficiency.

[0080] Figure 3FIG. 1 is a flow chart of a method for controlling an air conditioning unit in one embodiment. It should be understood that although Figure 3 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 3 At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0081] In one embodiment, Figure 4 As shown, an air conditioning unit control device 120 is provided, comprising:

[0082] An acquisition module 310, for acquiring operating parameters of different air-conditioning units 110 in the air-conditioning room;

[0083] A calculation module 320, configured to determine a calculated opening degree corresponding to the air-conditioning unit 110 according to an operating parameter of the air-conditioning unit 110, wherein the calculated opening degree is used to indicate a resource demand corresponding to the air-conditioning unit 110;

[0084] A determination module 330, configured to determine a target opening corresponding to the air conditioning unit 110 according to a comparison relationship between a current opening of a resource control switch in an operating parameter of the air conditioning unit 110 and the calculated opening;

[0085] The control module 340 is used to control the resource control switch corresponding to the air-conditioning unit 110 according to the target opening degree, so as to provide the air-conditioning unit 110 with refrigeration resources corresponding to the resource demand.

[0086] In one embodiment, the calculation module 320 is further configured to:

[0087] The calculated opening degree corresponding to the air-conditioning unit 110 is determined according to the unit operating load, the current suction superheat and the current opening degree in the corresponding operating parameters of the air-conditioning unit 110 .

[0088] In one embodiment, the calculation module 320 is further configured to:

[0089] Determine a load ratio value according to a first ratio between the unit operating load and the unit full load, multiplied by a first adjustment coefficient and the current opening;

[0090] Determine the suction ratio value according to the product of the second ratio between the current suction superheat and the full-load suction superheat, the second adjustment coefficient and the current opening;

[0091] The calculated opening corresponding to the air-conditioning unit 110 is determined according to the sum of the load ratio value, the air intake ratio value and the current opening.

[0092] In one embodiment, the determining module 330 is further configured to:

[0093] When the calculated opening is less than or equal to the current opening, the terminal temperature difference is determined according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit 110;

[0094] When the terminal temperature difference is greater than or equal to the first preset temperature difference, and the evaporation temperature is greater than or equal to the first preset temperature, the calculated opening degree is used as the target opening degree corresponding to the air-conditioning unit 110 .

[0095] In one embodiment, the determining module 330 is further configured to:

[0096] When the terminal temperature difference is less than the first preset temperature difference, and / or the evaporation temperature is less than the first preset temperature, the current opening degree is used as the target opening degree corresponding to the air-conditioning unit 110 .

[0097] In one embodiment, the determining module 330 is further configured to:

[0098] When the calculated opening is greater than the current opening, the terminal temperature difference is determined according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit 110;

[0099] When the terminal temperature difference is less than or equal to the second preset temperature difference, and the evaporation temperature is less than or equal to the second preset temperature, the calculated opening degree is used as the target opening degree corresponding to the air-conditioning unit 110 .

[0100] In one embodiment, the determining module 330 is further configured to:

[0101] When the terminal temperature difference is greater than a second preset temperature difference, and / or the evaporating temperature is greater than a second preset temperature, the current opening degree is used as a target opening degree corresponding to the air-conditioning unit 110 .

[0102] like Figure 5 As shown, an embodiment of the present application provides a computer device, including a processor 711, a communication interface 712, a memory 713 and a communication bus 714, wherein the processor 711, the communication interface 712, and the memory 713 communicate with each other through the communication bus 714;

[0103] Memory 713, used for storing computer programs;

[0104] The processor 711 is used to implement the air conditioning unit control method provided by any one of the above method embodiments when executing the program stored in the memory 713.

[0105] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0106] In one embodiment, the air conditioning unit control device 120 provided in the present application can be implemented in the form of a computer program. The computer program can be Figure 5 The computer device shown in the figure is run. The memory of the computer device can store various program modules constituting the air conditioning unit control device 120, for example, Figure 4 The acquisition module 310, the calculation module 320, the determination module 330 and the control module 340 are shown. The computer program composed of various program modules enables the processor to execute the air conditioning unit control method of each embodiment of the present application described in this specification.

[0107] Figure 5 The computer device shown can be Figure 4 The acquisition module 310 in the air conditioning unit control device 120 shown in the figure acquires the operating parameters of different air conditioning units 110 in the air conditioning room. The computer device can determine the calculated opening corresponding to the air conditioning unit 110 according to the operating parameters of the air conditioning unit 110 through the calculation module 320, wherein the calculated opening is used to indicate the resource demand corresponding to the air conditioning unit 110. The computer device can determine the target opening corresponding to the air conditioning unit 110 according to the comparison relationship between the current opening of the resource control switch in the operating parameters of the air conditioning unit 110 and the calculated opening through the determination module 330. The computer device can control the resource control switch corresponding to the air conditioning unit 110 according to the target opening through the control module 340, and provide the air conditioning unit 110 with refrigeration resources corresponding to the resource demand.

[0108] An embodiment of the present application further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the air conditioning unit control method provided by any of the aforementioned method embodiments is implemented.

[0109] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0110] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a general hardware platform, and of course, by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0111] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative can be used.

[0112] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for controlling an air conditioning unit, characterized in that: The method comprises: Get the operating parameters of different air-conditioning units in the air-conditioning room; Determining a calculated opening corresponding to the air-conditioning unit according to an operating parameter of the air-conditioning unit, wherein the calculated opening is used to indicate a resource demand corresponding to the air-conditioning unit; Determining a target opening corresponding to the air conditioning unit according to a comparison relationship between a current opening of a resource control switch in an operating parameter of the air conditioning unit and the calculated opening; The resource control switch corresponding to the air-conditioning unit is controlled according to the target opening degree to provide the air-conditioning unit with refrigeration resources corresponding to the resource demand.

2. The method according to claim 1, characterized in that The step of determining the calculated opening degree corresponding to the air-conditioning unit according to the operating parameters of the air-conditioning unit comprises: The calculated opening degree corresponding to the air-conditioning unit is determined according to the unit operating load, the current suction superheat and the current opening degree in the corresponding operating parameters of the air-conditioning unit.

3. The method according to claim 2, characterized in that Determining the calculated opening corresponding to the air conditioning unit according to the unit operating load, current suction superheat and current opening in the corresponding operating parameters of the air conditioning unit includes: Determine a load ratio value according to a first ratio between the unit operating load and the unit full load, multiplied by a first adjustment coefficient and the current opening; Determine the suction ratio value according to the product of the second ratio between the current suction superheat and the full-load suction superheat, the second adjustment coefficient and the current opening; The calculated opening corresponding to the air conditioning unit is determined according to the sum of the load ratio value, the air intake ratio value and the current opening.

4. The method according to claim 1, characterized in that The step of determining the target opening corresponding to the air conditioning unit according to the comparison relationship between the current opening of the resource control switch in the operating parameters of the air conditioning unit and the calculated opening comprises: When the calculated opening is less than or equal to the current opening, determining the terminal temperature difference according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit; When the terminal temperature difference is greater than or equal to a first preset temperature difference, and the evaporating temperature is greater than or equal to a first preset temperature, the calculated opening is used as a target opening corresponding to the air-conditioning unit.

5. The method according to claim 4, characterized in that When the calculated opening is less than or equal to the current opening, after determining the terminal temperature difference according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit, the method further includes: When the terminal temperature difference is less than a first preset temperature difference, and / or the evaporating temperature is less than a first preset temperature, the current opening degree is used as a target opening degree corresponding to the air-conditioning unit.

6. The method according to claim 1, characterized in that The step of determining the target opening corresponding to the air conditioning unit according to the comparison relationship between the current opening of the resource control switch in the operating parameters of the air conditioning unit and the calculated opening comprises: When the calculated opening is greater than the current opening, the terminal temperature difference is determined according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit; When the terminal temperature difference is less than or equal to the second preset temperature difference, and the evaporating temperature is less than or equal to the second preset temperature, the calculated opening degree is used as the target opening degree corresponding to the air-conditioning unit.

7. The method according to claim 1, characterized in that When the calculated opening is greater than the current opening, after determining the terminal temperature difference according to the difference between the chilled water outlet temperature and the evaporation temperature of the unit in the corresponding operating parameters of the air-conditioning unit, the method further includes: When the terminal temperature difference is greater than a second preset temperature difference, and / or the evaporating temperature is greater than a second preset temperature, the current opening degree is used as a target opening degree corresponding to the air-conditioning unit.

8. An air conditioning unit control device, characterized in that: The device comprises: An acquisition module is used to obtain the operating parameters of different air-conditioning units in the air-conditioning room; A calculation module, used to determine a calculated opening corresponding to the air-conditioning unit according to the operating parameters of the air-conditioning unit, wherein the calculated opening is used to indicate a resource demand corresponding to the air-conditioning unit; A determination module, configured to determine a target opening corresponding to the air-conditioning unit according to a comparison relationship between a current opening of a resource control switch in an operating parameter of the air-conditioning unit and the calculated opening; The control module is used to control the resource control switch corresponding to the air-conditioning unit according to the target opening degree, so as to provide the air-conditioning unit with refrigeration resources corresponding to the resource demand.

9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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