Air conditioner-based temperature control method and device, and electronic device

Abstract

Embodiments of the present application provide a temperature control method and device based on an air conditioner and an electronic device. The method comprises: obtaining energy consumption information of a cabinet and control information of an air conditioner; the air conditioner is configured to control the temperature of the cabinet, the air conditioner is configured with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working conditions of the fan, the working conditions of the refrigeration pump and the working conditions of the heat exchanger; determining a chilled water valve control temperature according to the energy consumption information, the control information, a preset first temperature threshold and a preset second temperature threshold; the chilled water valve control temperature is used to control the opening degree of a chilled water valve in the heat exchanger; and controlling the fan and the refrigeration pump of the air conditioner based on a real-time current temperature according to the chilled water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold. The method is used to dynamically adjust the refrigeration of the air conditioner and reduce energy consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to temperature control technology, in particular to a temperature control method and device based on an air conditioner and an electronic device. BACKGROUND

[0002] With the continuous development of information technologies such as artificial intelligence, big data and cloud computing, the demand for data center computing power is increasing sharply, and the number and scale of data centers are also expanding rapidly, resulting in a serious increase in energy consumption. During use, data centers will generate a large amount of heat, and in order to maintain the normal operation of the equipment room, the data center needs to be refrigerated.

[0003] At present, precision air conditioners are usually used for refrigeration in large and medium-sized data centers, and the mainstream control scheme is to control the opening degree of the water valve of the precision air conditioner based on the return air temperature or the supply air temperature. The temperature control precision of the air conditioner is low, which affects the energy saving effect and adjustment performance of the air conditioner.

[0004] Therefore, how to scientifically and effectively control the temperature of the air conditioner has become a problem to be solved at present. SUMMARY

[0005] The embodiments of the present application provide a temperature control method and device based on an air conditioner and an electronic device, so as to achieve the technical effects of optimizing the refrigeration effect and reducing the energy consumption of the air conditioner, and improve the control precision of the air conditioner.

[0006] In a first aspect, the embodiments of the present application provide a temperature control method based on an air conditioner, comprising:

[0007] obtaining energy consumption information of a cabinet and control information of an air conditioner; wherein the air conditioner is used for temperature control of the cabinet, the air conditioner is configured with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working conditions of the fan, the working conditions of the refrigeration pump and the working conditions of the heat exchanger;

[0008] determining a refrigeration water valve control temperature according to the energy consumption information, the control information, a preset first temperature threshold and a preset second temperature threshold; wherein the refrigeration water valve control temperature is used to control the opening degree of the refrigeration water valve in the heat exchanger;

[0009] controlling the fan and the refrigeration pump of the air conditioner based on the real-time current temperature according to the refrigeration water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold; wherein the preset first temperature threshold is less than the preset second temperature threshold.

[0010] In a second aspect, the embodiments of the present application provide a temperature control device based on an air conditioner, comprising:

[0011] The acquisition unit is configured to acquire energy consumption information of the cabinet and control information of the air conditioner, wherein the air conditioner is configured to control the temperature of the cabinet, the air conditioner is provided with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working conditions of the fan, the working conditions of the refrigeration pump and the working conditions of the heat exchanger.

[0012] The determination unit is configured to determine a chilled water valve control temperature according to the energy consumption information, the control information, a preset first temperature threshold and a preset second temperature threshold, wherein the chilled water valve control temperature is used to control the opening degree of a chilled water valve in the heat exchanger.

[0013] The control unit is configured to control the fan and the refrigeration pump of the air conditioner based on a real-time current temperature according to the chilled water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold, wherein the preset first temperature threshold is smaller than the preset second temperature threshold.

[0014] In a third aspect, an embodiment of the present application provides an air conditioner-based temperature control device, comprising a memory and a processor.

[0015] The memory stores computer execution instructions.

[0016] The processor executes the computer execution instructions stored in the memory, so that the processor executes the first aspect and / or various possible implementation manners of the first aspect.

[0017] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores computer execution instructions, and the computer execution instructions are executed by a processor to implement the first aspect and / or various possible implementation manners of the first aspect.

[0018] In a fifth aspect, an embodiment of the present application provides a computer program product, comprising a computer program, wherein the computer program is executed by a processor to implement the first aspect and / or various possible implementation manners of the first aspect.

[0019] The air conditioner-based temperature control method and device and the electronic device provided by the present application can acquire the energy consumption information of the cabinet and the control information of the air conditioner, and preset a first temperature threshold and a second temperature threshold, determine a chilled water valve control temperature according to the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold, and control the fan and the refrigeration pump of the air conditioner based on a real-time current temperature according to the chilled water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold. The effect of scientifically and dynamically controlling the fan and the refrigeration pump of the air conditioner is achieved, the energy consumption efficiency of the air conditioner refrigeration process is improved, the energy saving effect and the adjustment performance of the air conditioner are improved, and the temperature control is more accurate. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0021] Figure 1 Flowchart of the air conditioning-based temperature control method provided in this application Figure 1 ;

[0022] Figure 2 Flowchart of the air conditioning-based temperature control method provided in this application Figure 2 ;

[0023] Figure 3 An exemplary air conditioning control diagram for initial temperature control provided in this embodiment of the disclosure;

[0024] Figure 4 An exemplary air conditioning control diagram for adjusting the temperature is provided in an embodiment of this disclosure;

[0025] Figure 5 A structural block diagram of an air conditioning-based temperature control device provided in an embodiment of this disclosure;

[0026] Figure 6 A structural block diagram of an air conditioning-based temperature control device provided in an embodiment of this disclosure;

[0027] Figure 7 This is a schematic diagram of the structure of the temperature control electronic device based on air conditioning provided in this application.

[0028] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0030] First, let me explain the terms used in this application:

[0031] Precision air conditioning: Precision air conditioning for computer rooms is a special type of air conditioning designed for modern electronic equipment rooms.

[0032] Chiller pump: Chilled water pump, a chilled water circulation system, is commonly used in large refrigeration equipment such as central air conditioning.

[0033] Heat exchanger: is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger.

[0034] Surface cooler: full name surface cooler. Its principle is to let the heat medium or coolant or refrigeration working fluid flow through the inner cavity of the metal pipe, and the air to be treated flows through the outer wall of the metal pipe to exchange heat to achieve the purpose of heating or cooling air.

[0035] EC fan: EC (Electrical Commutation) fan, also known as electronic commutation motor, refers to a centrifugal fan using digital brushless DC outer rotor motor or a centrifugal fan using EC motor.

[0036] Cabinet: Data center cabinet is a cabinet for storing computers and related control equipment, with high rigidity and strength, suitable for storing various equipment.

[0037] Cold aisle: Cold aisle generally refers to a cold / heat aisle closed system. The cold / heat aisle closed system is a technology applied to reduce the temperature of equipment heated by work. It is mainly applied to data center rooms.

[0038] Water valve opening: Water valve opening refers to the position of the valve core (or valve plate) when the valve core (or valve plate) changes the flow area during adjustment. The valve opening is usually expressed in percentage, 0% means completely closed, and 100% means completely open.

[0039] Supply air volume: Supply air volume refers to the air volume passed by the fan or air conditioning equipment per unit time. It is one of the important indicators to measure the working effect of air conditioning system. Supply air volume is usually expressed in cubic meters per hour (m 3 / h), cubic feet per minute (CFM) or liters per second (L / s).

[0040] In recent years, with the continuous development of artificial intelligence, big data, cloud computing and other technologies, the demand for computing power has also increased, and the number and scale of data centers have also been accelerating expansion. As the carrier of computing power infrastructure, data centers usually contain servers, cabinets and other equipment, which will generate a large amount of heat during operation, so it is necessary to cool the data center, and the refrigeration system has become an important guarantee for the stable operation of data center equipment.

[0041] At present, precision air conditioners are usually used to provide refrigeration for large and medium-sized data centers, and the precision air conditioner usually consists of an EC fan, a refrigeration pump, a control system, a refrigeration water heat exchange coil and the like. The current mainstream control scheme is to control the water valve opening degree of the air conditioner heat exchanger based on the return air temperature or and / or the supply air temperature of the air conditioner, so as to control the refrigeration of the air conditioner.

[0042] During the operation of the air conditioner, minimum threshold values need to be set for the air supply amount of the fan of the air conditioner and the opening degree of the water valve, so that the operation of the air conditioner can ensure the refrigeration effect while reducing energy consumption. However, the setting of the threshold values of the opening degree of the water valve and the air supply amount of the fan currently lacks certain scientific basis and industry specifications, and in a data center with low load, the refrigeration effect and energy consumption are greatly affected. For the control of the air conditioner fan and the refrigeration pump, fixed temperature control is usually used, which makes the energy saving effect and the adjustment performance of the air conditioner poor.

[0043] The temperature control method based on an air conditioner provided in the present application aims to solve the above technical problems of the prior art.

[0044] The specific application scenario of the present application is a precision air conditioner for refrigeration in a data center, which is used to control the refrigeration of the precision air conditioner. By obtaining the energy consumption information of the cabinet and the control information representing the working conditions of the fan and the working conditions of the refrigeration pump in the air conditioner, the refrigeration water valve control temperature of the air conditioner is determined according to the energy consumption information, the control information, the preset first temperature threshold value and the preset second temperature threshold value. Based on the real-time current temperature, the fan and the refrigeration pump of the air conditioner are controlled according to the refrigeration water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold value and the preset second temperature threshold value, and the refrigeration operation of the air conditioner is performed. By dynamically determining the refrigeration water valve control temperature and controlling the refrigeration of the air conditioner in real time according to the refrigeration water valve control temperature, the problem of poor energy saving effect and adjustment performance of the data center air conditioner refrigeration is solved.

[0045] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail in the following specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in detail in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0046] Figure 1 Flowchart of the temperature control method based on an air conditioner provided in the present application Figure 1 The method can be performed by a temperature control device based on an air conditioner.

[0047] As shown in Figure 1 , the method comprises the following steps:

[0048] S101, obtain energy consumption information of the cabinet and control information of the air conditioner; wherein the air conditioner is configured to control the temperature of the cabinet, and the air conditioner is configured with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working conditions of the fan, the working conditions of the refrigeration pump and the working conditions of the heat exchanger.

[0049] Exemplarily, at least one air conditioner is configured in the refrigeration system, and the air conditioner is configured with a fan, a refrigeration pump and a heat exchanger. For any air conditioner, there is a cold aisle served by the air conditioner, and the energy consumption information of the cabinet in the cold aisle corresponding to the air conditioner and the control information of the air conditioner are obtained. The energy consumption information of the cabinet represents the power consumption of the IT cabinet in the cold aisle corresponding to the air conditioner, that is, energy consumption will be generated in the working process of the cabinet. The control information of the air conditioner represents the working conditions of the fan and the working conditions of the refrigeration pump. The working conditions of the fan can be, for example, the air supply amount of the fan, the temperature of the fan, etc. The working conditions of the refrigeration pump can be, for example, the power consumption information of the refrigeration pump, the temperature of the liquid in the refrigeration pump, etc. The working conditions of the heat exchanger can be, for example, the opening of the water valve in the heat exchanger, the temperature of the liquid in the heat exchanger, etc. The IT cabinet can be a computer or other electronic equipment. The air conditioner can be a precision air conditioner. The fan can be an EC fan. The heat exchanger can be a cooling radiator.

[0050] S102, determine the chilled water valve control temperature according to the energy consumption information, the control information, a preset first temperature threshold and a preset second temperature threshold; wherein the chilled water valve control temperature is used to control the opening degree of the chilled water valve in the heat exchanger.

[0051] Exemplarily, for any air conditioner, a first temperature threshold is set in advance, and the preset first temperature threshold is the temperature corresponding to the minimum running state of the air conditioner. When the temperature is the preset first temperature threshold, the air conditioner cools according to the minimum running state. The minimum running state is the running state of the air conditioner when the air supply amount of the fan of the air conditioner is the minimum air supply amount and the water valve opening degree of the heat exchanger is the minimum opening degree.

[0052] A second temperature threshold is set in advance, and the preset second temperature threshold is the temperature corresponding to the maximum running state of the air conditioner. When the temperature is the preset second temperature threshold, the air conditioner cools according to the maximum running state. The maximum running state is the running state of the air conditioner when the air supply amount of the fan of the air conditioner is the maximum air supply amount and the water valve opening degree of the heat exchanger is the maximum opening degree.

[0053] The chilled water valve control temperature is used to control the opening degree of the water valve in the heat exchanger, that is, when the temperature is the preset first temperature threshold, the air volume of the air blower of the air conditioner is the minimum air volume, and the opening degree of the water valve of the heat exchanger is the minimum opening degree. Between the first temperature threshold and the chilled water valve control temperature, the opening degree of the water valve of the heat exchanger remains unchanged, and as the temperature rises, only the air volume of the air blower is continuously increased. When the temperature is the chilled water valve control temperature, the air volume of the air blower reaches the maximum air volume. When the temperature is greater than the chilled water valve control temperature, between the chilled water valve control temperature and the second temperature threshold, the air volume of the air blower is the maximum air volume, and as the temperature rises, the opening degree of the water valve of the heat exchanger is continuously increased. When the temperature is greater than or equal to the second temperature threshold, the air volume of the air blower is the maximum air volume, and the opening degree of the water valve of the heat exchanger is the maximum opening degree.

[0054] The chilled water valve control temperature is used to control the opening degree of the water valve in the heat exchanger, that is, when the temperature is the preset first temperature threshold, the air volume of the air blower of the air conditioner is the minimum air volume, and the opening degree of the water valve of the heat exchanger is the minimum opening degree. Between the first temperature threshold and the chilled water valve control temperature, the opening degree of the water valve of the heat exchanger remains unchanged, and as the temperature rises, only the air volume of the air blower is continuously increased. When the temperature is the chilled water valve control temperature, the air volume of the air blower reaches the maximum air volume. When the temperature is greater than the chilled water valve control temperature, between the chilled water valve control temperature and the second temperature threshold, the air volume of the air blower is the maximum air volume, and as the temperature rises, the opening degree of the water valve of the heat exchanger is continuously increased. When the temperature is greater than or equal to the second temperature threshold, the air volume of the air blower is the maximum air volume, and the opening degree of the water valve of the heat exchanger is the maximum opening degree.

[0055] In one example, the chilled water valve control temperature can also be determined, for example, according to the energy consumption information of the cabinet and the control information of the air conditioner, the relationship between the water valve opening degree and the interval temperature is determined, that is, the temperature in the interval temperature and the size of the water valve opening degree are one-to-one corresponding, for example, the temperature of the first temperature threshold can correspond to the minimum water valve opening degree, and any temperature in the interval temperature can correspond to the maximum water valve opening degree. According to the relationship between the water valve opening degree and the interval temperature, the temperature corresponding to the maximum water valve opening degree is determined as the chilled water valve control temperature.

[0056] S103, according to the chilled water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold, and the preset second temperature threshold, the air blower and the chilled pump of the air conditioner are controlled based on the real-time current temperature; wherein the preset first temperature threshold is less than the preset second temperature threshold.

[0057] Exemplarily, according to the chilled water valve control temperature, energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold, the fan and the water valve of the air conditioner are controlled based on the real-time current temperature. For example, the preset first temperature threshold, the preset second temperature threshold, and the temperature between the preset first temperature threshold and the preset second temperature threshold can be determined as an interval temperature, the chilled water valve control temperature, the energy consumption information, and the control information are determined, the association relationship between the air supply amount of the fan and the interval temperature is determined, for example, the first temperature threshold corresponds to the minimum air supply amount of the fan, the temperature between the chilled water valve control temperature and the second temperature threshold corresponds to the maximum air supply amount of the fan, and the rest of the air supply amounts correspond to the interval temperature from small to large one by one; the association relationship between the heat exchanger water valve opening size and the interval temperature is determined, for example, the temperature between the first temperature threshold and the chilled water valve control temperature corresponds to the minimum water valve opening, the second temperature threshold corresponds to the maximum water valve opening, and the rest of the water valve openings correspond to the interval temperature from small to large one by one.

[0058] In one example, the association relationship between the water valve opening and the interval temperature is determined, and the first temperature threshold can correspond to the minimum opening of the water valve, the temperature between the chilled water valve control temperature and the second temperature threshold can correspond to the maximum opening of the water valve, and the rest of the water valve openings can correspond to the interval temperature one by one; the association relationship between the air supply amount of the fan and the interval temperature is determined, and the temperature between the first temperature threshold and the chilled water valve control temperature can correspond to the minimum air supply amount of the fan, the second temperature threshold can correspond to the maximum air supply amount, and the air supply amount from small to large can correspond to the interval temperature one by one.

[0059] The real-time current temperature of the cold channel corresponding to the air conditioner is obtained, the air supply amount of the fan of the air conditioner is adjusted to the corresponding air supply amount according to the association relationship between the air supply amount and the interval temperature based on the real-time current temperature, that is, the air supply amount is adjusted to the air supply amount corresponding to the air supply amount and the interval temperature in the association relationship between the air supply amount and the interval temperature, and the real-time current temperature corresponds to the air supply amount; the water valve opening of the heat exchanger of the air conditioner is adjusted to the corresponding water valve opening according to the association relationship between the water valve opening and the interval temperature based on the real-time current temperature, that is, the water valve opening is adjusted to the water valve opening corresponding to the water valve opening and the interval temperature in the association relationship between the water valve opening and the interval temperature, and the real-time current temperature corresponds to the water valve opening.

[0060] The temperature control method based on an air conditioner provided in the application, device and electronic equipment, by obtaining the energy consumption information of the cabinet and the control information of the air conditioner, and pre-setting the first temperature threshold and the second temperature threshold, determining the chilled water valve control temperature according to the energy consumption information, the control information, the pre-set first temperature threshold and the pre-set second temperature threshold, and controlling the fan and the chilled pump of the air conditioner based on the real-time current temperature according to the chilled water valve control temperature, the energy consumption information, the control information, the pre-set first temperature threshold and the pre-set second temperature threshold. The effect of scientifically and dynamically controlling the fan and the chilled pump of the air conditioner is realized, the energy consumption efficiency of the air conditioner refrigeration process is improved, the energy saving effect and the adjustment performance of the air conditioner are improved, and the temperature control is more accurate.

[0061] Figure 2 The flowchart of the temperature control method based on an air conditioner provided in the embodiments of the present disclosure Figure 2 .

[0062] The embodiments in the present application are based on Figure 1 the embodiments, and the chilled water valve control temperature is determined according to the energy consumption information, the control information, the pre-set first temperature threshold and the pre-set second temperature threshold. The method comprises the following steps:

[0063] determining a supply air volume threshold according to the energy consumption information and the fan information; wherein the supply air volume threshold represents the minimum value of the supply air volume of the air conditioner fan; determining the opening degree threshold of the water valve according to the energy consumption information, the heat exchanger information and the supply air volume threshold; wherein the opening degree threshold represents the minimum opening degree of the water valve; determining the chilled water valve control temperature according to the supply air volume threshold, the opening degree threshold, the pre-set first temperature threshold and the pre-set second temperature threshold.

[0064] As Figure 2 shown, the method comprises the following steps:

[0065] S201, obtaining the energy consumption information of the cabinet and the control information of the air conditioner; wherein the air conditioner is used for temperature control of the cabinet, the air conditioner is configured with a fan and a chilled pump, and the control information represents the working condition of the fan and the working condition of the chilled pump.

[0066] Exemplarily, this step can refer to the above-mentioned step S101, and will not be described here.

[0067] S202, determining a supply air volume threshold according to the energy consumption information and the fan information; wherein the supply air volume threshold represents the minimum value of the supply air volume of the air conditioner fan.

[0068] Exemplarily, for any air conditioner, the fan information is information representing working conditions of the fan in the air conditioner control information, and the fan information can be, for example, air supply amount information representing an air supply amount of the fan, and fan temperature information representing a temperature of the fan. The air supply amount threshold is determined according to the energy consumption information of the cabinet and the fan information. For example, a preset refrigeration temperature can be set, and the preset refrigeration temperature is used to instruct the air conditioner to perform refrigeration on the cabinet equipment in the corresponding cold aisle, so that the temperature in the corresponding cold aisle of the air conditioner is reduced to the preset refrigeration temperature. According to the energy consumption information of the cabinet and the fan information, the preset refrigeration temperature is used to obtain a correlation between the air supply amount information of the fan and the temperature information of the fan under the current energy consumption information, and the air supply amount of the fan corresponding to the preset refrigeration temperature is determined as the air supply amount threshold according to the correlation between the air supply amount information of the fan and the temperature information of the fan. The air supply amount threshold of each air conditioner is sequentially determined. The air supply amount threshold represents the minimum value of the air supply amount of the fan of the air conditioner, that is, the size of the air supply amount when all the air supply amount is used for refrigeration.

[0069] The beneficial effect of such a setting is that the air supply amount threshold is determined according to the energy consumption information and the fan information, so that the air supply amount threshold can be automatically adjusted according to the energy consumption information and the fan information, and all the air supply amount is used for refrigeration without additional power consumption, so that the air supply amount threshold becomes a dynamic parameter, optimizes the energy consumption efficiency of the air conditioner, and reduces the additional energy consumption.

[0070] In this embodiment, the fan information includes return air temperature information and supply air temperature information, the return air temperature information represents the temperature of the monitored air in the environment, and the supply air temperature information represents the temperature of the air currently emitted by the air conditioner; the air supply amount threshold is determined according to the energy consumption information and the fan information, including: obtaining the air density and the specific heat capacity of the air in the environment where the air conditioner is located; determining the air supply amount threshold according to the energy consumption information, the return air temperature information, the supply air temperature information, the air density, and the specific heat capacity of the air.

[0071] Specifically, the fan information includes supply air temperature information and return air temperature information. The supply air temperature information represents the temperature of the air currently emitted by the air conditioner, that is, the temperature of the air emitted by the air conditioner to the corresponding refrigeration environment after refrigeration by the fan; the return air temperature information represents the temperature of the air in the refrigeration environment of the air conditioner monitored, that is, the temperature of the air emitted by the fan returning to the air conditioner again after passing through the equipment.

[0072] The air density and the specific heat capacity of the air in the environment where the air conditioner is located are obtained, and the air supply amount threshold of the fan is determined according to the energy consumption information, the return air temperature information, the supply air temperature information, the air density, and the specific heat capacity of the air based on a preset air supply amount threshold determination formula. The preset air supply amount threshold determination formula is used to determine the air supply amount threshold according to the energy consumption information, the return air temperature information, the supply air temperature information, the air density, and the specific heat capacity of the air.

[0073] The preset air supply amount threshold determination formula can be, for example:

[0074] Q′ req = P IT,row,m

[0075]

[0076] wherein, P IT,row,m represents the energy consumption power of the cold aisle IT cabinet served by the mth air conditioner, i.e., the energy consumption information of the cabinet, Q′ req is an intermediate quantity representing the energy consumption information. V min,m represents the minimum air supply amount set value of the air supply fan of the mth air conditioner, i.e., the air supply amount threshold, p a is the air density, C a is the air specific heat capacity, T ret,m represents the return air temperature of the mth air conditioner, i.e., the return air temperature information, T sup,m represents the supply air temperature of the mth air conditioner, i.e., the supply air temperature information. The formula represents that the air supply amount threshold is equal to the energy consumption information divided by the product of the air density, the air specific heat capacity, and the difference between the return air temperature and the supply air temperature.

[0077] The beneficial effect of such setting is that the air supply amount threshold is dynamically determined using multiple indexes such as the energy consumption information, the return air temperature information, the supply air temperature information, the air density, and the air specific heat capacity, so that the determination of the air supply amount threshold is more reasonable and scientific, and more in line with the requirements of cabinet refrigeration, thereby reducing the energy consumption of refrigeration.

[0078] S203, determining the opening threshold of the water valve according to the energy consumption information, the heat exchanger information, and the air supply amount threshold; wherein the opening threshold represents the minimum opening degree of the water valve.

[0079] Exemplarily, for any air conditioner, the heat exchanger information is information representing the working condition of the refrigeration pump in the air conditioner control information, and the heat exchanger information can be, for example, water valve opening degree information representing the opening degree of the water valve, and heat exchanger liquid temperature information representing the temperature of the liquid in the heat exchanger. According to the energy consumption information, the heat exchanger information, and the air supply amount threshold, the opening degree threshold of the water valve is determined. For example, the water valve air supply amount for adjusting the air supply amount can be preset, and the water valve air supply amount for adjusting the air supply amount is used to indicate the determination of the water valve opening degree threshold. If the obtained air supply amount threshold is less than or equal to the water valve air supply amount for adjusting the air supply amount, according to the energy consumption information, the air supply amount threshold, and the heat exchanger information, the preset refrigeration temperature is obtained, and the correlation between the opening degree of the water valve of the heat exchanger and the temperature information of the liquid in the heat exchanger under the current energy consumption information and the air supply amount threshold is obtained, and according to the correlation between the opening degree of the water valve of the heat exchanger and the temperature information of the liquid in the heat exchanger, the opening degree of the water valve corresponding to the preset refrigeration temperature is determined as the opening degree threshold of the water valve. If the air supply amount threshold is greater than the water valve air supply amount for adjusting the air supply amount, the opening degree threshold of the water valve is not adjusted, and the determination of the air supply amount threshold of the next air conditioner is performed. The opening degree threshold of the water valve corresponding to each air conditioner is determined in turn. The opening degree threshold represents the minimum opening degree of the water valve, that is, the opening degree of the water valve when the water cooling capacity provided by the refrigeration pump is all used for refrigeration, and at this time the water cooling capacity corresponding to the opening degree of the water valve is not wasted.

[0080] The beneficial effect of such setting is that whether the opening degree threshold of the water valve needs to be controlled is determined according to the size of the air supply amount threshold, so that the setting of the opening degree threshold of the water valve is more scientific, and the air conditioner can more effectively complete refrigeration, and the energy consumption of the refrigeration pump is reduced.

[0081] In this embodiment, the opening degree threshold of the water valve is determined according to the energy consumption information, the heat exchanger information, and the air supply amount threshold, which includes: obtaining the preset rated air supply amount of the fan and the current air supply amount of the fan, determining the ratio between the preset rated air supply amount and the current air supply amount of the fan as the air supply ratio; if the air supply ratio is less than the preset air supply ratio threshold, the opening degree threshold of the water valve is determined according to the energy consumption information and the heat exchanger information.

[0082] Specifically, the preset rated air supply amount of the fan and the current air supply amount of the fan are obtained, the rated air supply amount is the maximum air supply amount allowed by the fan equipment, and the ratio between the current air supply amount of the fan and the rated air supply amount is determined as the air supply ratio. The air supply ratio threshold is preset, and the air supply ratio threshold can be, for example, the ratio between the air supply amount allowed by the minimum voltage of the fan and the air supply amount allowed by the maximum voltage of the fan, that is, the lower limit of the air supply ratio. If the air supply ratio is less than or equal to the preset air supply ratio threshold, the opening degree threshold of the water valve is determined according to the energy consumption information and the heat exchanger information; if the air supply ratio is greater than the preset air supply ratio threshold, the opening degree threshold of the water valve is not adjusted, and the adjustment of the air supply amount threshold of the next air conditioner is performed.

[0083] The beneficial effect of the arrangement is that, when the air supply ratio is less than a preset air supply ratio threshold, the chilled water pump water valve of the air conditioner is controlled, so that the control of the water valve is more in line with the requirements of the air conditioner use environment, and the setting of the air conditioner air supply threshold and the water valve opening threshold is more flexible.

[0084] In the embodiment, the heat exchanger information includes return water temperature information and water supply temperature information. The return water temperature information represents the temperature of the liquid recovered by the air conditioner during operation, and the water supply temperature information represents the temperature of the liquid emitted by the chilled water pump to the heat exchanger. According to the energy consumption information and the heat exchanger information, the opening threshold of the water valve is determined, including: obtaining the liquid density information in the heat exchanger and the current opening of the water valve; according to a preset correlation, determining the liquid flow corresponding to the current opening; wherein the preset correlation represents the correlation between the opening of the water valve and the liquid flow; according to the liquid density information, the liquid flow corresponding to the current opening, the energy consumption information, the return water temperature information, and the water supply temperature information, the opening threshold of the water valve is determined.

[0085] Specifically, the heat exchanger information includes return water temperature information and water supply temperature information. The water supply temperature information represents the temperature of the liquid emitted by the chilled water pump to the heat exchanger, i.e. the temperature of the liquid sent to the cabinet of the corresponding refrigeration environment of the air conditioner after being refrigerated by the chilled water pump. The return water temperature information represents the temperature of the liquid recovered by the air conditioner heat exchanger during operation, i.e. the temperature of the liquid sent out by the heat exchanger after being refrigerated by the chilled water pump and then returning to the air conditioner heat exchanger.

[0086] The liquid density information in the heat exchanger and the current opening of the water valve are obtained, and the liquid flow corresponding to the current opening is determined according to the preset correlation between the opening of the water valve and the liquid flow. According to the liquid density information, the liquid flow information corresponding to the current opening, the energy consumption information, the return water temperature information, and the water supply temperature information, the opening threshold of the water valve of the heat exchanger is determined based on the preset opening threshold determination formula. The preset opening threshold determination formula is used to determine the opening threshold according to the liquid density information, the liquid flow information corresponding to the current opening, the energy consumption information, the return water temperature information, and the water supply temperature information.

[0087] The preset opening threshold determination formula can be, for example:

[0088] Q′ req =P IT,row,m

[0089]

[0090] wherein β min , m represents the minimum opening setting value of the water valve of the mth air conditioner heat exchanger, i.e. the opening threshold, and ρ wdensity of the liquid, f w an opening flow function, representing the liquid flow information at the current opening, T out,m representing the supply water temperature of the mth air conditioner, i.e., the supply water temperature information, T in,m representing the return water temperature of the mth air conditioner, i.e., the return water temperature information, G[x] represents a minimum water valve opening calculation function. The formula represents that the energy consumption information is divided by the product of the liquid density, the opening flow function, and the difference between the supply water temperature and the return water temperature, input into the minimum water valve opening calculation function, and the obtained value is the water valve opening threshold.

[0091] The beneficial effect of such a setting is that the water valve opening threshold is determined according to the density information of the liquid, the liquid flow information corresponding to the current opening, the energy consumption information, the return water temperature information, and the supply water temperature information, etc., making the determination of the water valve opening threshold more scientific and reliable, and making the refrigeration of the chiller pump at the opening threshold be fully used.

[0092] S204, determining the chilled water valve control temperature according to the supply air volume threshold, the opening threshold, the preset first temperature threshold, and the preset second temperature threshold.

[0093] For example, for any air conditioner, the corresponding supply air volume threshold, opening threshold, and preset first temperature threshold can be associated, i.e., if the return air temperature received by the current air conditioner is less than or equal to the first temperature threshold, the supply air volume of the air conditioner is the supply air volume threshold, and the water valve opening of the heat exchanger of the air conditioner is the water valve opening threshold. The water valve opening is kept unchanged at the opening threshold, and when the return air temperature rises, only the supply air volume of the fan is increased. When it is determined that the supply air volume of the air conditioner changes from the supply air volume threshold to the rated maximum supply air volume, the change of the return air temperature, if the supply air volume reaches the rated maximum supply air volume and the return air temperature does not change or the return air temperature rises, i.e., the cooling effect of the fan is low when the water valve opening is used as the water valve opening, and it is difficult to meet the cooling demand, the return air temperature corresponding to the time when the supply air volume reaches the rated maximum supply air volume is determined as the chilled water valve control temperature. When the return air temperature exceeds the chilled water valve control temperature, the supply air volume of the air conditioner fan is kept at the maximum supply air volume, and the water valve opening is increased until the water valve opening reaches the maximum water valve opening at the preset second temperature threshold.

[0094] The beneficial effect of such a setting is that the control of the chiller pump is optimized, the water valve opening of the heat exchanger can be automatically adjusted according to the equipment and the temperature, the energy consumption of the air conditioner cooling is optimized, the energy consumption of the air conditioner cooling is reduced, the balance point of the energy consumption and the cooling effect is found, and the cooling effect and the energy consumption efficiency are improved.

[0095] In the embodiment, the chilled water valve control temperature is determined according to the air supply amount threshold, the opening threshold, the preset first temperature threshold, and the preset second temperature threshold, including: determining the chilled water valve initial control temperature according to the preset first temperature threshold and the preset second temperature threshold; determining the current energy consumption of the air conditioner according to the chilled water valve initial control temperature; wherein the current energy consumption of the air conditioner includes the current energy consumption of the fan and the current energy consumption of the chilled pump; determining the chilled water valve control temperature according to the preset first temperature threshold, the preset second temperature threshold, the initial control temperature, the air supply amount threshold, the opening threshold, and the current energy consumption.

[0096] Specifically, the chilled water valve initial control temperature is determined according to the preset first temperature threshold and the preset second temperature threshold. For example, the chilled water valve initial control temperature can be determined according to the first temperature threshold and the second temperature threshold based on a preset temperature optimization formula.

[0097] The preset temperature optimization formula can be, for example,

[0098] T 1,i = T0 + a i ·(T2-T0)

[0099] wherein, T 1,i represents the chilled water valve control temperature obtained by the i-th optimization, i is 0 when the temperature is the chilled water valve initial control temperature, T0 is the preset first temperature threshold, T2 is the preset second temperature threshold, a i is the control coefficient obtained by the i-th optimization, which can be any value between 0.5 and 0.8. The formula represents that the chilled water valve initial control temperature T 1,0 is the first temperature threshold plus the product of the control coefficient and the difference between the second temperature threshold and the first temperature threshold.

[0100] According to the initial control temperature of the chilled water valve, the air supply quantity of the fan of the air conditioner and the opening degree of the water valve of the heat exchanger are controlled to obtain the current energy consumption of the air conditioner, and the current energy consumption of the air conditioner includes the current energy consumption of the fan and the current energy consumption of the chilled pump. According to the first temperature threshold of the device, the initial control temperature, the air supply quantity threshold, the opening degree threshold and the current energy consumption, the chilled water valve control temperature is determined, for example, the preset coefficient optimization direction, the coefficient optimization step, the coefficient optimization times, the preset optimization direction is used to determine the addition and subtraction of the control coefficient, the coefficient optimization step is used to determine the optimization size of the control coefficient each time, and the coefficient optimization times are used to determine the optimization times of the coefficient. According to the preset coefficient optimization direction, the preset coefficient optimization step, the coefficient optimization times and the control coefficient, the control coefficient is optimized based on the preset coefficient optimization formula, and the size of the control coefficient is updated. According to the updated control coefficient, the chilled water valve control temperature is updated based on the preset temperature optimization formula, and the fan and the water valve of the air conditioner are controlled according to the updated control temperature, and the energy consumption information of the updated air conditioner is obtained. If the energy consumption information is less than the current energy consumption of the air conditioner, the temperature is determined as the chilled water valve control temperature; if the energy consumption information is greater than the current energy consumption of the air conditioner, the coefficient optimization direction is adjusted, and the control coefficient is determined again.

[0101] If the coefficient optimization direction is positive, the preset coefficient optimization formula can be, for example:

[0102]

[0103] Wherein, a i+1 Indicates the control coefficient after the i+1th optimization, a i Indicates the control coefficient after the ith optimization, z is a step control quantity, and z indicates the coefficient optimization step. The larger z is, the smaller the optimization step is each time, and the optimization of the coefficient is more accurate. The formula indicates that the control coefficient of the i+1th optimization is the control coefficient of the ith optimization plus 1 minus the ratio of the control coefficient of the ith optimization to the step control quantity.

[0104] If the coefficient optimization direction is negative, the preset coefficient optimization formula can be, for example:

[0105]

[0106] Wherein, the formula indicates that the control coefficient of the i+1th optimization is the control coefficient of the ith optimization minus 1 minus the ratio of the control coefficient of the ith optimization to the step control quantity.

[0107] The beneficial effect of the arrangement is that the chilled water valve control temperature of the air conditioner is accurately and specifically optimized, and the energy consumption of the air conditioner before and after optimization is determined, so that the optimization direction of the chilled water valve control temperature of the air conditioner is more accurate, the chilled water valve control temperature can better control the energy consumption information of the air fan and the chilled pump of the air conditioner, the energy consumption of the air conditioner is effectively reduced, and the refrigeration effect of the air conditioner is improved.

[0108] In the embodiment, the chilled water valve control temperature is determined according to the preset first temperature threshold, the preset second temperature threshold, the initial control temperature, the air supply amount threshold, the opening threshold, and the current energy consumption, including: adjusting the initial control temperature to obtain an adjusted control temperature; determining the correlation between the air supply amount and the temperature according to the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the air supply amount threshold, and the opening threshold, as a first relationship, and determining the correlation between the opening of the water valve and the temperature as a second relationship; obtaining the current temperature, and adjusting the air supply amount of the air conditioner and / or the opening of the water valve according to the current temperature, the first relationship, and the second relationship; obtaining the energy consumption of the adjusted air conditioner, and if the current energy consumption is greater than the energy consumption of the adjusted air conditioner, adjusting the adjusted control temperature of the chilled pump to obtain a new control temperature; determining a new first relationship and a new second relationship according to the preset first temperature threshold, the preset second temperature threshold, the new control temperature, the air supply amount threshold, and the opening threshold; again obtaining the current temperature, and adjusting the air supply amount of the air conditioner and / or the opening of the water valve according to the current temperature, the new first relationship, and the new second relationship; again obtaining the energy consumption of the adjusted air conditioner, until the energy consumption obtained again is greater than the energy consumption obtained last time, and then the new control temperature is determined as the chilled water valve control temperature.

[0109] Specifically, the initial control temperature is adjusted to obtain an adjusted control temperature. For example, the control coefficient can be adjusted based on a preset coefficient optimization formula, a preset coefficient optimization step, and a control coefficient to obtain an adjusted coefficient. For example, if the control coefficient a0 is 0.5, the preset step control amount z is 10, and the coefficient optimization direction is positive, based on the preset coefficient optimization formula, a1=a0+(1-a0) / z=0.55, the adjusted coefficient a1 is 0.55. The adjusted control temperature is obtained according to the adjusted coefficient, the first temperature threshold, the second temperature threshold, and a preset temperature optimization formula.

[0110] According to the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the air supply amount threshold and the opening threshold, a correlation between the air supply amount and the temperature is determined as a first relationship. For example, the preset first temperature threshold can be associated with the air supply amount threshold, that is, when the return air temperature of the air conditioner is less than or equal to the first temperature threshold, the air supply amount of the air fan of the air conditioner is the air supply amount threshold; the adjusted control temperature can be associated with the rated maximum air supply amount of the air fan, that is, when the return air temperature of the air conditioner is greater than or equal to the adjusted control temperature, the air supply amount of the air fan of the air conditioner is the rated maximum air supply amount; and the change of the air supply amount of the air fan from the air supply amount threshold to the rated maximum air supply amount is determined, and the correlation in the interval between the first temperature threshold and the adjusted control temperature is determined.

[0111] A correlation between the opening of the water valve and the temperature is determined as a second relationship. For example, the preset first temperature threshold can be associated with the opening threshold, and the adjusted control temperature can be associated with the opening threshold, that is, when the return air temperature of the air conditioner is less than or equal to the adjusted control temperature, the opening of the water valve of the air conditioner is the opening threshold; the preset second temperature threshold can be associated with the maximum opening of the water valve of the heat exchanger, that is, when the return air temperature of the air conditioner is greater than or equal to the second temperature threshold, the opening of the water valve is the maximum opening; and the change of the opening of the water valve from the opening threshold to the maximum opening is determined, and the correlation in the interval between the adjusted control temperature and the second temperature threshold is determined.

[0112] The current temperature is obtained, and based on the first relationship and the second relationship, the air supply amount and / or the opening of the water valve of the air conditioner is adjusted according to the current temperature, the energy consumption of the adjusted air conditioner is obtained, if the current energy consumption is greater than the energy consumption of the adjusted air conditioner, that is, the energy consumption of the air conditioner is reduced after adjustment, the coefficient optimization direction is correct, the adjustment coefficient is adjusted according to the coefficient optimization direction, the coefficient optimization step and the adjustment coefficient, and a new coefficient is obtained. And according to the new coefficient, the first temperature threshold, the second temperature threshold, based on the preset temperature optimization formula, a new control temperature is determined. For example, if the adjustment coefficient a1 is 0.55, the preset step control amount z is 10, the coefficient optimization direction is positive, based on the preset coefficient optimization formula, a2=a1+(1-a1) / z=0.55+(1-0.55) / 10=0.595, a new coefficient a2 is obtained as 0.595.

[0113] According to the preset first temperature threshold, the preset second temperature threshold, the new control temperature, the air supply amount threshold and the opening threshold, a new first relationship and a new second relationship are determined, the current temperature is obtained again, and the air supply amount and / or the opening of the water valve of the air conditioner is adjusted according to the current temperature obtained again, the new first relationship and the new second relationship; the energy consumption of the adjusted air conditioner is obtained again, until the energy consumption obtained again is greater than the energy consumption obtained last time, and the new control temperature is determined as the chilled water valve control temperature.

[0114] If the current energy consumption is less than the energy consumption of the adjusted air conditioner, that is, the energy consumption of the air conditioner is increased after adjustment, the coefficient optimization direction is wrong, the coefficient optimization direction is adjusted, and the control coefficient of the air conditioner is adjusted again.

[0115] In one example, the association relationship between the air supply amount and the temperature can also be determined according to the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the air supply amount threshold, and the opening threshold, which is a third relationship. For example, the preset first temperature threshold can be associated with the opening threshold, that is, when the return air temperature of the air conditioner is less than or equal to the first temperature threshold, the water valve opening of the air conditioner is the opening threshold; the adjusted control temperature can be associated with the maximum opening of the water valve, that is, when the return air temperature of the air conditioner is greater than or equal to the adjusted control temperature, the water valve opening of the air conditioner is the maximum water valve opening; and the change of the water valve opening of the air conditioner from the opening threshold to the maximum opening is determined, and the association relationship in the interval between the first temperature threshold and the adjusted control temperature is determined.

[0116] The association relationship between the air supply amount of the fan and the temperature is determined, which is a fourth relationship. For example, the preset first temperature threshold can be associated with the air supply amount threshold, and the adjusted control temperature can be associated with the air supply amount threshold, that is, when the return air temperature of the air conditioner is less than or equal to the adjusted control temperature, the air supply amount of the fan of the air conditioner is the air supply amount threshold; the preset second temperature threshold can be associated with the rated maximum air supply amount of the fan, that is, when the return air temperature of the air conditioner is greater than or equal to the second temperature threshold, the air supply amount of the fan is the rated maximum air supply amount; and the change of the air supply amount of the fan from the air supply amount threshold to the rated maximum air supply amount is determined, and the association relationship in the interval between the adjusted control temperature and the second temperature threshold is determined.

[0117] The current temperature is obtained, and based on the third relationship and the fourth relationship, the air supply amount of the air conditioner and / or the opening of the water valve are adjusted according to the current temperature, the energy consumption of the adjusted air conditioner is obtained, and the chilled water valve control temperature is determined.

[0118] In one example, the preset large model can also be used to determine the chilled water valve control temperature. The preset large model is used to dynamically determine the chilled water valve control temperature. The preset large model can be a large model using Markov decision. The use of the large model can be that the control information of the air conditioner is obtained in real time, the chilled water valve control temperature is adjusted, the energy consumption of the fan and the chilled pump of the air conditioner is reduced, the model obtains a reward, and the chilled water valve control temperature is continuously adjusted.

[0119] Figure 3 An example of an air conditioner control diagram of an initial control temperature provided by an embodiment of the present disclosure. As shown in FIG. 1, the x-axis represents the return air temperature of the air conditioner, and the y-axis represents the water valve opening of the air conditioner. Figure 3As shown in the figure, the horizontal axis represents temperature, with the positive direction to the right; the left vertical axis represents the water valve opening, with the positive direction upwards; the right vertical axis represents the air volume, with the positive direction upwards. T0 represents the first temperature threshold; T2 represents the second temperature threshold; and T1 represents the initial control temperature. The line labeled 1 in the figure represents the correlation between the fan air volume and temperature determined based on the initial control temperature T1. That is, when line 1 is between the first temperature threshold T0 and the initial control temperature T1, the air volume threshold V is maintained. min0 Between the initial control temperature T1 and the second temperature threshold T2, the air supply volume increases from the air supply volume threshold V. min0 Gradually increase to the rated maximum air volume V max The line labeled 2 in the figure represents the relationship between the water valve opening degree determined based on the initial control temperature T1 and the temperature. That is, when line 2 is between the first temperature threshold T0 and the initial control temperature T1, the water valve opening degree decreases from the opening degree threshold β. min0 Gradually increase to the maximum opening degree β of the water valve max The water valve opening is maintained at its maximum opening β between the initial control temperature T1 and the second temperature threshold T2. max constant.

[0120] Figure 4 An exemplary air conditioning control diagram showing adjusted temperature control is provided as an embodiment of this disclosure. (See diagram below.) Figure 4 As shown in the figure, the horizontal axis represents temperature, with the rightward direction being positive; the left vertical axis represents the water valve opening, with the upward direction being positive; the right vertical axis represents the air volume, with the upward direction being positive. T0 represents the first temperature threshold; T2 represents the second temperature threshold; T1″ represents the adjusted control temperature, that is, the optimization direction of this control temperature is negative. Line 3 in the figure represents the correlation between the fan air volume and temperature determined based on the adjusted control temperature T1, that is, when line 3 is between the first temperature threshold T0 and the adjusted control temperature T1″, it remains at the air volume threshold V. min0 After adjustment, the control temperature T1″ is between the second temperature threshold T2, and the air supply volume is adjusted from the air supply volume threshold V. min0 Gradually increase to the rated maximum air volume V max The line labeled 4 in the figure represents the relationship between the water valve opening degree determined based on the initial control temperature T1 and the temperature. That is, when line 4 is between the first temperature threshold T0 and the initial control temperature T1″, the water valve opening degree decreases from the opening degree threshold β. min0 Gradually increase to the maximum opening degree β of the water valve max After adjustment, the water valve opening is maintained at the maximum opening β between the controlled temperature T1″ and the second temperature threshold T2. max constant.

[0121] The beneficial effect of the arrangement is that the chilled water valve control temperature is dynamically adjusted, the determined chilled water valve control temperature ensures the refrigeration effect and reduces the energy consumption level of the air conditioner, the chilled water pump energy consumption and the fan energy consumption of the air conditioner are dynamically searched to find the minimum value, the energy consumption of the air conditioner is reduced, and the control of the air conditioner is more scientific and effective according to the real-time change of the environment.

[0122] S205, according to the chilled water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold, based on the real-time current temperature, the fan and the chilled water pump of the air conditioner are controlled;Wherein, the preset first temperature threshold is less than the preset second temperature threshold.

[0123] Exemplarily, this step can refer to the above-mentioned step S103, and will not be repeated here.

[0124] In this embodiment, it also includes: determining the cooling capacity of the air conditioner according to the return air temperature information and the supply air temperature information of the air conditioner;Determining the cooling demand of the cabinet according to the energy consumption information of the cabinet;If the cooling capacity is less than the cooling demand, then determining the target opening of the water valve according to the cooling capacity, the cooling demand, the opening threshold and the preset rated opening value;Adjusting the water valve of the air conditioner according to the target opening.

[0125] Specifically, during the operation of the air conditioner, the cooling capacity Q sup of the air conditioner is determined according to the return air temperature information and the supply air temperature information of the air conditioner based on the preset cooling capacity determination formula.

[0126] The preset cooling capacity determination formula can be, for example:

[0127] Q sup =f(n)·ρ a ·C a (T ret -T sup )

[0128] Wherein, Q sup represents the cooling capacity, n represents the current fan speed, f(x) represents the air volume speed function, f(n) represents the fan supply air volume when the speed is n, ρ a is the air density, C a is the specific heat capacity of air, T ret is the return air temperature, and T sup is the supply air temperature. The formula represents that the refrigeration capacity is the product of the fan supply air volume and the difference between the air density, the specific heat capacity of air, the return air temperature and the supply air temperature.

[0129] According to the energy consumption information of the cabinet, the cooling demand Q req of the cabinet is determined based on the preset cabinet cooling demand determination formula.

[0130] The cooling demand determination formula of the cabinet can be, for example:

[0131] Q req = η·P IT,row

[0132] wherein Q req represents the cooling demand, η is a preset safety factor, and P IT,row represents the energy consumption information of the cabinet. The formula represents that the cooling demand is the product of the safety factor and the energy consumption information.

[0133] If the cooling amount is less than the cooling demand, then the opening degree coefficient of the water valve is determined according to the cooling amount, the cooling demand, and a preset integral calculation formula, wherein the opening degree coefficient of the water valve represents the balance between the cooling amount provided by the opening degree of the water valve and the cooling demand.

[0134] The integral calculation formula can be, for example:

[0135] K′ v = PI(Q sup , Q req )

[0136] wherein K′ v represents the opening degree coefficient of the water valve, PI(x, y) represents a preset proportional integral calculator, and PI(Q sup , Q req ) represents that the cooling amount and the cooling demand are input into the preset proportional integral calculator, and the obtained value is the opening degree coefficient of the water valve.

[0137] The target opening degree of the water valve is determined according to the opening degree coefficient, the opening degree threshold, and a preset rated opening degree value, based on a preset target opening degree determination formula.

[0138] The preset target opening degree determination formula can be, for example:

[0139] β v = K′ v ·(β max - β min ) + β min

[0140] wherein β v represents the target opening degree of the water valve, β max represents the rated maximum opening degree of the water valve, β min represents the opening degree threshold of the water valve. The formula represents that the target opening degree is equal to the opening degree threshold plus the product of the opening degree coefficient and the product of the rated opening degree and the opening degree threshold.

[0141] According to the target opening degree of the water valve, the water valve of the air conditioner is adjusted, and a new cooling demand and a cooling capacity are obtained, if the cooling capacity is still less than the cooling demand after adjusting the water valve, a target speed is determined according to the cooling demand, air density, air specific heat capacity, supply air temperature, return air temperature, and an inverse function of a wind speed function, based on a preset speed determination formula, and the fan speed of the air conditioner is adjusted according to the target speed.

[0142] The preset speed determination formula can be, for example:

[0143]

[0144] Wherein, n v is the target speed, and F[x] is the inverse function of the preset wind speed function. The formula represents that the target speed is input into the inverse function of the wind speed function, and the product of the cooling demand and the air density, the air specific heat capacity, and the difference between the return air temperature and the supply air temperature.

[0145] The beneficial effect of such setting is that the opening and speed of the air conditioner can be controlled in real time according to the cooling capacity and the cooling demand, so that the air conditioner can dynamically and stably provide refrigeration for the equipment, ensure the normal operation of the cabinet, and match the water valve opening, the fan supply air volume, and the current cooling demand.

[0146] The temperature control method and device based on an air conditioner and the electronic equipment provided in the present application, by obtaining the energy consumption information of the cabinet and the control information of the air conditioner, and pre-setting a first temperature threshold and a second temperature threshold, determining a chilled water valve control temperature according to the energy consumption information, the control information, the preset first temperature threshold, and the preset second temperature threshold, and controlling the fan and the chilled pump of the air conditioner based on the real-time current temperature according to the chilled water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold, and the preset second temperature threshold. The effect of scientifically and dynamically controlling the fan and the chilled pump of the air conditioner is realized, the energy consumption efficiency of the air conditioner refrigeration process is improved, the energy saving effect and the adjustment performance of the air conditioner are improved, and the temperature control is more accurate.

[0147] Figure 5 The structure block diagram of the temperature control device based on an air conditioner provided in the present disclosure is provided.

[0148] For the convenience of description, only parts related to the embodiments of the present disclosure are shown, and the temperature control device based on an air conditioner 500 is shown in Figure 5 The temperature control device based on an air conditioner 500 includes an obtaining unit 501, a determining unit 502, and a control unit 503.

[0149] The acquisition unit 501 acquires energy consumption information of the cabinet and control information of the air conditioner; wherein the air conditioner is used for temperature control of the cabinet, the air conditioner is configured with a fan, a refrigeration pump and a heat exchanger, and the control information represents working conditions of the fan, working conditions of the refrigeration pump and working conditions of the heat exchanger;

[0150] The determination unit 502 determines a chilled water valve control temperature according to the energy consumption information, the control information, a preset first temperature threshold and a preset second temperature threshold; wherein the chilled water valve control temperature is used for controlling an opening degree of a water valve in the heat exchanger;

[0151] The control unit 503 controls the fan and the refrigeration pump of the air conditioner based on a real-time current temperature according to the chilled water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold; wherein the preset first temperature threshold is less than the preset second temperature threshold.

[0152] Figure 6 The structure block diagram of the temperature control device based on the air conditioner is provided.

[0153] In Figure 5 On the basis of the embodiment shown in Figure 6 The determination unit 502 includes a fan flow module 5021, an opening degree module 5022 and a temperature module 5023.

[0154] The fan flow module 5021 is used for determining a supply air flow threshold according to the energy consumption information and fan information; wherein the supply air flow threshold represents a minimum value of a supply air flow of the air conditioner fan;

[0155] The opening degree module 5022 is used for determining an opening degree threshold of the water valve according to the energy consumption information, heat exchanger information and the supply air flow threshold; wherein the opening degree threshold represents a minimum opening degree of the water valve;

[0156] The temperature module 5023 is used for determining the chilled water valve control temperature according to the supply air flow threshold, the opening degree threshold, the preset first temperature threshold and the preset second temperature threshold.

[0157] In one example, the fan flow module 5021 includes:

[0158] An air sub-module is used for acquiring air density and air specific heat capacity of an environment where the air conditioner is located;

[0159] A fan flow sub-module is used for determining the supply air flow threshold according to the energy consumption information, the return air temperature information, the supply air temperature information, the air density and the air specific heat capacity.

[0160] In one example, the opening degree module 5022 includes:

[0161] The comparison submodule is configured to obtain a preset rated air supply of the fan and a current air supply of the fan, and determine a ratio between the preset rated air supply and the current air supply of the fan as an air supply ratio.

[0162] The opening submodule is configured to, if the air supply ratio is less than a preset air supply ratio threshold, determine an opening threshold of the water valve according to the energy consumption information and the heat exchanger information.

[0163] In one example, the opening submodule is specifically configured to:

[0164] obtain liquid density information in the heat exchanger and a current opening of the water valve;

[0165] determine a liquid flow corresponding to the current opening according to a preset correlation; wherein the preset correlation represents a correlation between the opening of the water valve and the liquid flow;

[0166] determine the opening threshold of the water valve according to the liquid density information, the liquid flow corresponding to the current opening, the energy consumption information, the return water temperature information, and the water supply temperature information.

[0167] In one example, the temperature module 5023 includes:

[0168] An initial temperature submodule is configured to determine a chilled water valve initial control temperature according to a preset first temperature threshold and a preset second temperature threshold.

[0169] An energy consumption monitoring submodule is configured to determine a current energy consumption of the air conditioner according to the chilled water valve initial control temperature; wherein the current energy consumption of the air conditioner includes a current energy consumption of the fan and a current energy consumption of the chilled pump.

[0170] A temperature determination submodule is configured to determine a chilled water valve control temperature according to the preset first temperature threshold, the preset second temperature threshold, the initial control temperature, the air supply threshold, the opening threshold, and the current energy consumption.

[0171] In one example, the temperature determination submodule is specifically configured to:

[0172] adjust the initial control temperature to obtain an adjusted control temperature;

[0173] determine a correlation between the air supply and the temperature as a first relationship according to the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the air supply threshold, and the opening threshold, and determine a correlation between the opening of the water valve and the temperature as a second relationship;

[0174] obtain a current temperature, and adjust the air supply of the air conditioner and / or the opening of the water valve according to the current temperature, the first relationship, and the second relationship;

[0175] obtaining an energy consumption of the adjusted air conditioner, and if the current energy consumption is greater than the energy consumption of the adjusted air conditioner, adjusting the adjusted control temperature of the chilled water valve to obtain a new control temperature;

[0176] determining a new first relationship and a new second relationship according to the preset first temperature threshold, the preset second temperature threshold, the new control temperature, the air supply amount threshold, and the opening threshold;

[0177] obtaining a current temperature again, and adjusting the air supply amount of the air conditioner and / or the opening of the water valve according to the obtained current temperature again, the new first relationship, and the new second relationship;

[0178] obtaining an energy consumption of the adjusted air conditioner again, and if the obtained energy consumption again is greater than the energy consumption obtained previously, determining the new control temperature as the control temperature of the chilled water valve.

[0179] In one example, the method further comprises:

[0180] a cooling capacity sub-module configured to determine a cooling capacity of the air conditioner according to the return air temperature information and the supply air temperature information of the air conditioner;

[0181] a cooling demand sub-module configured to determine a cooling demand of the cabinet according to the energy consumption information of the cabinet;

[0182] a target opening sub-module configured to, if the cooling capacity is less than the cooling demand, determine a target opening of the water valve according to the cooling capacity, the cooling demand, the opening threshold, and a preset rated opening value;

[0183] an adjusting sub-module configured to adjust the water valve of the air conditioner according to the target opening.

[0184] Figure 7 A structural schematic diagram of an electronic device for temperature control based on an air conditioner is provided in the present application. As shown in Figure 5 the electronic device 70 provided in the present embodiment comprises at least one processor 701 and a memory 702. Optionally, the device 70 further comprises a communication component 703. The processor 701, the memory 702, and the communication component 703 are connected through a bus 704.

[0185] In the specific implementation process, the at least one processor 701 executes the computer execution instructions stored in the memory 702, so that the at least one processor 701 executes the method described above.

[0186] The specific implementation process of the processor 701 can refer to the method embodiments described above, which has similar implementation principles and technical effects, and will not be described here again in the present embodiment.

[0187] In the above embodiments, it should be understood that the processor can be a central processing unit (CPU) and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), etc. The general-purpose processor can be a microprocessor or can also be any conventional processor. The steps of the method disclosed in combination with the application can be directly embodied as hardware processor execution or combined with hardware and software modules in the processor for execution.

[0188] The memory can include a random access memory (RAM) and can also include a non-volatile memory (NVM), such as at least one disk memory.

[0189] The bus can be an industry standard architecture (ISA) bus, a peripheral component (PCI) bus, an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application does not limit to only one bus or one type of bus.

[0190] The present application also provides a computer program product comprising a computer program which, when executed by a processor, implements the above method.

[0191] The present application also provides a computer readable storage medium having computer execution instructions stored therein, wherein when a processor executes the computer execution instructions, the above method is implemented.

[0192] The above readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0193] An example readable storage medium is coupled to the processor such that the processor can read information from the readable storage medium and can write information to the readable storage medium. Of course, the readable storage medium can also be a part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in the device.

[0194] The division of units is only a logical functional division, and in actual implementation, there can be another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0195] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0196] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0197] If the functions are realized in the form of software functional units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the part of the present application that essentially contributes to the prior art or the part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the embodiments of the present application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

[0198] Those skilled in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction related hardware. The foregoing program can be stored in a computer readable storage medium. The program executes to perform the steps of the above-mentioned method embodiments; and the foregoing storage medium includes various media capable of storing program codes, such as ROM, RAM, magnetic disk, or optical disk.

[0199] Finally, it should be noted that other embodiments of the present application will readily occur to those skilled in the art upon consideration of the specification and practice of the present application disclosed herein. The present application is intended to include all such variations, uses, or adaptations of the application in which the general principles of the application are used to best advantage and encompassed within its scope. The present application is not limited to the precise structures described and shown in the accompanying drawings and figures, and can be practiced with modification and alteration, and has different functions and configurations without departing from the scope of the present application. The scope of the present application is limited only by the claims appended hereto.

Claims

1. An air conditioner-based temperature control method, characterized by, The method comprises: obtaining energy consumption information of a cabinet and control information of an air conditioner, wherein the air conditioner is configured to control the temperature of the cabinet, the air conditioner is provided with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working conditions of the fan, the refrigeration pump and the heat exchanger; determining a refrigeration water valve control temperature according to the energy consumption information, the control information, a preset first temperature threshold and a preset second temperature threshold, wherein the refrigeration water valve control temperature is used to control the opening degree of the water valve in the heat exchanger; controlling the fan and the refrigeration pump of the air conditioner based on the real-time current temperature according to the refrigeration water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold, wherein the preset first temperature threshold is less than the preset second temperature threshold, the first temperature threshold is the temperature corresponding to the minimum running state of the air conditioner, the minimum running state is the running state of the air conditioner when the air supply amount of the fan is the minimum air supply amount and the opening degree of the water valve of the heat exchanger is the minimum opening degree, and the second temperature threshold is the temperature corresponding to the maximum running state of the air conditioner, the maximum running state is the running state of the air conditioner when the air supply amount of the fan is the maximum air supply amount and the opening degree of the water valve of the heat exchanger is the maximum opening degree.

2. The method of claim 1, wherein, The control information comprises fan information and heat exchanger information, and determining the refrigeration water valve control temperature according to the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold comprises: determining an air supply amount threshold according to the energy consumption information and the fan information, wherein the air supply amount threshold represents the minimum value of the air supply amount of the air conditioner fan; determining the opening degree threshold of the water valve according to the energy consumption information, the heat exchanger information and the air supply amount threshold, wherein the opening degree threshold represents the minimum opening degree of the water valve; determining the refrigeration water valve control temperature according to the air supply amount threshold, the opening degree threshold, the preset first temperature threshold and the preset second temperature threshold.

3. The method of claim 2, wherein, The fan information comprises return air temperature information and supply air temperature information, the return air temperature information represents the temperature of the air in the monitored environment, and the supply air temperature information represents the temperature of the air currently emitted by the air conditioner; determining an air supply amount threshold according to the energy consumption information and the fan information comprises: obtaining the air density and the specific heat capacity of the air in the environment where the air conditioner is located; determining the air supply amount threshold according to the energy consumption information, the return air temperature information, the supply air temperature information, the air density and the specific heat capacity of the air.

4. The method of claim 2, wherein, determining the opening degree threshold of the water valve according to the energy consumption information, the heat exchanger information and the air supply amount threshold comprises: obtaining the preset rated air supply amount of the fan and the current air supply amount of the fan, determining the ratio between the preset rated air supply amount and the current air supply amount of the fan as the air supply ratio; if the air supply ratio is less than a preset air supply ratio threshold, determining the opening degree threshold of the water valve according to the energy consumption information and the heat exchanger information.

5. The method of claim 4, wherein, The heat exchanger information includes return water temperature information and supply water temperature information, the return water temperature information representing a temperature of liquid recovered by the air conditioner during operation, and the supply water temperature information representing a temperature of liquid emitted by the chilled water pump to the heat exchanger; According to the energy consumption information and the heat exchanger information, the opening threshold of the water valve is determined, including: obtaining liquid density information in the heat exchanger and a current opening of the water valve; According to a preset correlation, a liquid flow corresponding to the current opening is determined; wherein the preset correlation represents a correlation between the opening of the water valve and the liquid flow; According to the liquid density information, the liquid flow corresponding to the current opening, the energy consumption information, the return water temperature information, and the supply water temperature information, the opening threshold of the water valve is determined.

6. The method of claim 2, wherein, According to the supply air volume threshold, the opening threshold, the preset first temperature threshold, and the preset second temperature threshold, the chilled water valve control temperature is determined, including: According to the preset first temperature threshold and the preset second temperature threshold, the initial control temperature of the chilled water valve is determined; According to the initial control temperature of the chilled water valve, the current energy consumption of the air conditioner is determined; wherein the current energy consumption of the air conditioner includes the current energy consumption of the fan and the current energy consumption of the chilled water pump; According to the preset first temperature threshold, the preset second temperature threshold, the initial control temperature, the supply air volume threshold, the opening threshold, and the current energy consumption, the chilled water valve control temperature is determined.

7. The method of claim 6, wherein, According to the preset first temperature threshold, the preset second temperature threshold, the initial control temperature, the supply air volume threshold, the opening threshold, and the current energy consumption, the chilled water valve control temperature is determined, including: adjusting the initial control temperature to obtain an adjusted control temperature; According to the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the supply air volume threshold, and the opening threshold, a correlation between the supply air volume and the temperature is determined as a first relationship, and a correlation between the opening of the water valve and the temperature is determined as a second relationship; obtaining a current temperature, and adjusting the supply air volume of the air conditioner and / or the opening of the water valve according to the current temperature, the first relationship, and the second relationship; obtaining the energy consumption of the adjusted air conditioner, and if the current energy consumption is greater than the energy consumption of the adjusted air conditioner, adjusting the adjusted control temperature of the chilled water pump to obtain a new control temperature; According to the preset first temperature threshold, the preset second temperature threshold, the new control temperature, the supply air volume threshold, and the opening threshold, a new first relationship and a new second relationship are determined; Again, the current temperature is obtained, and the supply air volume of the air conditioner and / or the opening of the water valve is adjusted according to the current temperature obtained again, the new first relationship, and the new second relationship; Again, the energy consumption of the adjusted air conditioner is obtained, and until the energy consumption obtained again is greater than the energy consumption obtained previously, the new control temperature is determined as the chilled water valve control temperature.

8. The method according to any one of claims 3-7, characterized in that, Further comprising: Determine a cooling capacity of the air conditioner according to return air temperature information and supply air temperature information of the air conditioner; Determine a cooling demand of the cabinet according to the energy consumption information of the cabinet; If the cooling capacity is less than the cooling demand, determine a target opening degree of a water valve according to the cooling capacity, the cooling demand, the opening degree threshold, and a preset rated opening degree value; Adjust the water valve of the air conditioner according to the target opening degree.

9. An air conditioner-based temperature control device, characterized by comprising: Comprise: An acquisition unit is configured to acquire energy consumption information of a cabinet and control information of an air conditioner, wherein the air conditioner is configured to control temperature of the cabinet, the air conditioner is configured with a fan, a refrigeration pump and a heat exchanger, and the control information represents working conditions of the fan, the refrigeration pump and the heat exchanger; A determination unit is configured to determine a refrigeration water valve control temperature according to the energy consumption information, the control information, a preset first temperature threshold and a preset second temperature threshold, wherein the refrigeration water valve control temperature is used to control opening and closing degrees of a refrigeration water valve in the heat exchanger; A control unit is configured to control the fan and the refrigeration pump of the air conditioner based on a real-time current temperature according to the refrigeration water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold, wherein the preset first temperature threshold is less than the preset second temperature threshold; the first temperature threshold is a temperature corresponding to a minimum running state of the air conditioner, and the minimum running state is a running state of the air conditioner when a fan supply air volume of the air conditioner is a minimum supply air volume and an opening degree of a water valve of the heat exchanger is a minimum opening degree; and the second temperature threshold is a temperature corresponding to a maximum running state of the air conditioner, and the maximum running state is a running state of the air conditioner when the fan supply air volume of the air conditioner is a maximum supply air volume and the opening degree of the water valve of the heat exchanger is a maximum opening degree.

10. An electronic device based on temperature control of an air conditioner, characterized by, Comprise: A memory and a processor; The memory stores computer execution instructions; The processor executes the computer execution instructions stored in the memory, so that the processor executes the method of any one of claims 1-8.

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