Constant-temperature air conditioner control method and device for energy storage system

Abstract

The invention provides a constant-temperature air conditioner control method and device for an energy storage system. The method comprises the steps that the internal temperature of the energy storage system is obtained; under the condition that the internal temperature is higher than the first target temperature, the air conditioner is triggered to enter an energy storage system cooling mode state, the internal temperature is compared with a cooling standard temperature interval, and a first temperature interval comparison result is obtained; triggering the air conditioner to execute a corresponding cooling control strategy according to the first temperature interval comparison result; the cooling control strategy comprises a first cooling control strategy for cooling treatment based on the micro-channel heat exchanger and a second cooling control strategy for cooling treatment based on the plate-type evaporator and / or the micro-channel condenser; and the third cooling control strategy is used for carrying out cooling treatment based on the micro-channel heat exchanger, the plate-type evaporator and / or the micro-channel condenser. According to the method, the temperature regulation and control efficiency and the temperature control effect of the air conditioner on the energy storage system can be effectively improved, and therefore stable operation of the energy storage system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to a method and device for controlling constant temperature air conditioning of an energy storage system, and also to an electronic device, a non-transitory computer-readable storage medium, and a computer program product. Background Art

[0002] In recent years, with the continuous development of new energy technologies, various energy storage devices have been used more and more widely in people's production and life. Affected by the rising prices of traditional energy, industries such as solar photovoltaics, wind power generation, and new energy electric vehicles have ushered in rapid development, and the corresponding energy storage system (such as energy storage battery equipment) business has also ushered in explosive growth. However, traditional energy storage systems are prone to heat up and cause risks in use. Therefore, for energy storage equipment, corresponding constant temperature air-conditioning equipment needs to be equipped. However, the control scheme of constant temperature air-conditioning equipment used in energy storage systems in the prior art has high limitations, and the control effect and accuracy are poor, resulting in increased energy consumption. Therefore, how to provide a more accurate constant temperature air-conditioning control scheme for energy storage systems has become a problem that needs to be solved urgently. Summary of the invention

[0003] The present invention provides a constant temperature air conditioning control method for an energy storage system, which is used to solve the defect that the constant temperature air conditioning control scheme of the energy storage system in the prior art has high limitations, resulting in poor constant temperature effect.

[0004] The present invention provides a constant temperature air conditioning control method for an energy storage system, comprising: Obtaining the internal temperature of the energy storage system; When the internal temperature is higher than the first target temperature, the air conditioner is triggered to enter the energy storage system cooling mode state, and the internal temperature is compared with the cooling standard temperature interval to obtain a first temperature interval comparison result; wherein the air conditioner includes a plate evaporator, a microchannel condenser and a microchannel heat exchanger; The air conditioner is triggered to execute a corresponding cooling control strategy according to the comparison result of the first temperature range; wherein the cooling control strategy includes: a first cooling control strategy based on the microchannel heat exchanger for cooling treatment, a second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment, and a third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment together.

[0005] According to the energy storage system constant temperature air conditioning control method of the present invention, after obtaining the internal temperature of the energy storage system, it also includes: When the internal temperature is lower than a preset second target temperature, the air conditioner is triggered to enter the energy storage system insulation mode, and the internal temperature is compared with a preset insulation standard temperature interval to obtain a second temperature interval comparison result; wherein the air conditioner further includes an electric heating module on a water circulation pipeline; the second target temperature is lower than the first target temperature; The air conditioner is triggered to execute a corresponding insulation control strategy according to the comparison result of the second temperature range; wherein the insulation control strategy includes: a first insulation control strategy based on the electric heating module for heating treatment, a second insulation control strategy based on the plate evaporator for heating treatment, and a third insulation control strategy based on the electric heating module and the plate evaporator for heating treatment together.

[0006] According to the energy storage system constant temperature air conditioning control method of the present invention, the step of triggering the air conditioning to execute a corresponding temperature reduction control strategy according to the first temperature interval comparison result includes: When the comparison result of the first temperature interval is that the internal temperature is within the first temperature interval of the cooling standard temperature interval, the pressurized water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the microchannel heat exchanger is controlled to operate so that the water circulation enters the microchannel heat exchanger and cools the water through air heat exchange, and then the corresponding three-way passage is controlled to allow the water circulation to flow through the energy storage system to achieve cooling of the energy storage system.

[0007] According to the energy storage system constant temperature air conditioning control method of the present invention, the step of triggering the air conditioning to execute a corresponding temperature reduction control strategy according to the first temperature interval comparison result includes: When the comparison result of the first temperature interval is that the internal temperature is located in the second temperature interval of the cooling standard temperature interval, the pressurized water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve cooling of the energy storage system; wherein, the second temperature interval is higher than the first temperature interval.

[0008] According to the energy storage system constant temperature air conditioning control method of the present invention, the step of triggering the air conditioning to execute a corresponding temperature reduction control strategy according to the first temperature interval comparison result includes: When the comparison result of the first temperature interval is that the internal temperature is located in the third temperature interval in the cooling standard temperature interval, the booster water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve cooling of the energy storage system; wherein, the third temperature interval is higher than the second temperature interval.

[0009] According to the energy storage system constant temperature air conditioning control method of the present invention, the step of triggering the air conditioning to execute a corresponding heat preservation control strategy according to the second temperature range comparison result includes: When the comparison result of the second temperature interval is that the internal temperature is within the first temperature interval of the cooling standard temperature interval, the electric heating module on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system; or When the second temperature interval comparison result shows that the internal temperature is within the second temperature interval of the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system; or When the comparison result of the second temperature interval is that the internal temperature is located in the third temperature interval in the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline once, and the electric heating module on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline for a second time, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system.

[0010] The present invention also provides a constant temperature air conditioning control device for an energy storage system, comprising: A temperature data acquisition unit, used to obtain the internal temperature of the energy storage system; A temperature comparison and analysis unit, used for triggering the air conditioner to enter the energy storage system cooling mode state when the internal temperature is higher than the first target temperature, and comparing the internal temperature with the cooling standard temperature interval to obtain a first temperature interval comparison result; wherein the air conditioner includes a plate evaporator, a microchannel condenser and a microchannel heat exchanger; A cooling control unit, used for triggering the air conditioner to execute a corresponding cooling control strategy according to the comparison result of the first temperature range; wherein the cooling control strategy includes: a first cooling control strategy based on the microchannel heat exchanger for cooling treatment, a second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment, and a third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment together.

[0011] According to the energy storage system constant temperature air conditioning control device of the present invention, after obtaining the internal temperature of the energy storage system, it also includes: a heat preservation control unit; The heat preservation control unit is used for: When the internal temperature is lower than a preset second target temperature, the air conditioner is triggered to enter the energy storage system insulation mode, and the internal temperature is compared with a preset insulation standard temperature interval to obtain a second temperature interval comparison result; wherein the air conditioner further includes an electric heating module on a water circulation pipeline; the second target temperature is lower than the first target temperature; The air conditioner is triggered to execute a corresponding insulation control strategy according to the comparison result of the second temperature range; wherein the insulation control strategy includes: a first insulation control strategy based on the electric heating module for heating treatment, a second insulation control strategy based on the plate evaporator for heating treatment, and a third insulation control strategy based on the electric heating module and the plate evaporator for heating treatment together.

[0012] According to the constant temperature air conditioning control device for an energy storage system of the present invention, the temperature reduction control unit is used to: When the comparison result of the first temperature interval is that the internal temperature is within the first temperature interval of the cooling standard temperature interval, the pressurized water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the microchannel heat exchanger is controlled to operate so that the water circulation enters the microchannel heat exchanger and cools the water through air heat exchange, and then the corresponding three-way passage is controlled to allow the water circulation to flow through the energy storage system to achieve cooling of the energy storage system.

[0013] According to the constant temperature air conditioning control device for an energy storage system of the present invention, the temperature reduction control unit is used to: When the comparison result of the first temperature interval is that the internal temperature is located in the second temperature interval of the cooling standard temperature interval, the pressurized water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve cooling of the energy storage system; wherein, the second temperature interval is higher than the first temperature interval.

[0014] According to the energy storage system constant temperature air conditioning control device of the present invention, the temperature reduction control unit is used for: When the comparison result of the first temperature interval is that the internal temperature is located in the third temperature interval in the cooling standard temperature interval, the booster water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve cooling of the energy storage system; wherein, the third temperature interval is higher than the second temperature interval.

[0015] According to the energy storage system constant temperature air conditioning control device of the present invention, the method of triggering the air conditioning to execute a corresponding heat preservation control strategy according to the second temperature range comparison result includes: When the comparison result of the second temperature interval is that the internal temperature is within the first temperature interval of the cooling standard temperature interval, the electric heating module on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system; or When the second temperature interval comparison result shows that the internal temperature is within the second temperature interval of the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system; or When the comparison result of the second temperature interval is that the internal temperature is located in the third temperature interval in the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline once, and the electric heating module on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline for a second time, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system.

[0016] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the constant temperature air conditioning control method for the energy storage system as described in any one of the above items is implemented.

[0017] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the constant temperature air conditioning control method for the energy storage system as described in any of the above items is implemented.

[0018] The present invention also provides a computer program product, including a computer program, and when the computer program is executed by a processor, the constant temperature air conditioning control method of the energy storage system as described in any of the above items is implemented.

[0019] The constant temperature air conditioning control method for an energy storage system provided by the present invention obtains the internal temperature of the energy storage system, and when the internal temperature is higher than the first target temperature, triggers the air conditioner to enter the energy storage system cooling mode state, and compares the internal temperature with the cooling standard temperature interval to obtain the first temperature interval comparison result, and triggers the air conditioner to execute a corresponding cooling control strategy according to the first temperature interval comparison result; the cooling control strategy includes: a first cooling control strategy based on a microchannel heat exchanger for cooling treatment, a second cooling control strategy based on a plate evaporator and / or a microchannel condenser for cooling treatment, and a third cooling control strategy based on a microchannel heat exchanger, a plate evaporator and / or a microchannel condenser for cooling treatment, which can effectively improve the temperature regulation efficiency and temperature control effect of the air conditioner on the energy storage system, thereby ensuring the stable operation of the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is one of the flow charts of the constant temperature air conditioning control method of the energy storage system provided by the present invention.

[0022] Figure 2 This is the second flow chart of the constant temperature air conditioning control method of the energy storage system provided by the present invention.

[0023] Figure 3 It is a structural schematic diagram of the air conditioner provided by the present invention.

[0024] Figure 4It is a structural schematic diagram of the constant temperature air conditioning control device of the energy storage system provided by the present invention.

[0025] Figure 5 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Combine the following Figure 1-Figure 5 The energy storage system constant temperature air conditioning control method and device of the present invention are described, and the embodiments thereof are described in detail.

[0028] The following is a detailed description of an embodiment of the energy storage system constant temperature air conditioning control method according to the present invention. Figure 1 As shown, it is one of the flow charts of the constant temperature air conditioning control method of the energy storage system provided by the present invention, and the specific implementation process includes the following steps: Step 101: Obtain the internal temperature of the energy storage system.

[0029] Specifically, the energy storage system may be an energy storage battery device. The internal temperature of the energy storage system is obtained by temperature sensors at multiple preset points. In an embodiment of the present invention, the air conditioner is an air conditioner that cools or keeps the energy storage system (i.e., the energy storage device) warm. Figure 3 As shown, the components of the air conditioner include a compressor, an exhaust pipe, a microchannel heat exchanger (i.e., a microchannel condenser, a refrigerant circuit), an electronic expansion valve (throttling element), a plate evaporator, an air return pipe, two three-way pipes, a microchannel heat exchanger (water circuit), an axial fan, an electric heater, a temperature sensor, a pressure sensor, a pressurized water pump, an expansion tank, a water inlet, and a water circulation pipeline of the energy storage system. The water circulation pipeline is used to heat the energy storage device to cool it down or keep it warm, so as to maintain a constant temperature environment for the energy storage device. The air conditioner described in the present invention has two energy storage system cooling mode and heat preservation mode.

[0030] The function of the expansion water tank is that it contains a water tank that can withstand a certain pressure. In order to prevent the water pressure of the water circulation system from being too high, when the water pressure of the water circulation system is detected to be too low or the water volume is small, the water inlet can be opened to add a mixture of ethylene glycol and water to add water to the system. The role of the pressure sensor and temperature sensor is to detect the temperature and pressure of the water in the system and provide real-time feedback to the control system, thereby controlling the operation of the booster pump, the compressor, the axial fan, the change of the tee, the operation of the electronic expansion valve, etc.

[0031] Step 102: When the internal temperature is higher than the first target temperature, trigger the air conditioner to enter the energy storage system cooling mode, and compare the internal temperature with the cooling standard temperature range to obtain a first temperature range comparison result; wherein the air conditioner includes a plate evaporator, a microchannel condenser and a microchannel heat exchanger.

[0032] In the embodiment of the present invention, the internal temperature can be compared with the first target temperature for analysis, and when the internal temperature is higher than the first target temperature (i.e., Figure 2 In the case of T1 in the figure, the air conditioner is triggered to enter the energy storage system cooling mode state, and the internal temperature is compared with the cooling standard temperature range (for example, including greater than 40° and less than 45°, greater than 45° and less than 50°, and greater than 50°) to obtain the first temperature range comparison result. According to the first temperature range comparison result, determine whether to use cooling method one (i.e., the first cooling control strategy based on the microchannel heat exchanger for cooling treatment), cooling method two (i.e., the second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment), or cooling method three (i.e., the third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment).

[0033] Step 103, triggering the air conditioner to execute a corresponding cooling control strategy according to the comparison result of the first temperature range; wherein the cooling control strategy includes: a first cooling control strategy based on the microchannel heat exchanger for cooling treatment, a second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment, and a third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment together.

[0034] In the embodiment of the present invention, three control methods are provided to cool the energy storage device: In the process of triggering the air conditioner to execute the corresponding cooling control strategy according to the first temperature interval comparison result, if the first temperature interval comparison result is that the internal temperature is in the first temperature interval of the cooling standard temperature interval, the pressure water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the microchannel heat exchanger is controlled to operate so that the water circulation enters the microchannel heat exchanger and cools the water through air heat exchange, and then the corresponding three-way passage is controlled to make the water circulation flow through the energy storage system to achieve energy storage system cooling. Specifically, Figure 3 As shown, the compressor is controlled not to start, the booster water pump is controlled to start, the water circulation is started, the axial flow fan is not turned on (the axial flow fan can also be turned on to enhance the heat exchange and cooling effect, and whether to control it to start is determined according to the temperature of the water circulation system), the three-way passage 1 and 4 are opened, the water circulates into the microchannel heat exchanger (water channel), and the water is cooled by air heat exchange, and then the water returns to the three-way, is electrically heated (not turned on), and enters the energy storage device. The water circulation absorbs the heat of the energy storage device to heat up, and then enters the microchannel heat exchanger (water channel) for heat exchange and cooling, and this reciprocating cycle is repeated.

[0035] If the comparison result of the first temperature interval is that the internal temperature is in the second temperature interval of the cooling standard temperature interval, the pressure water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the cooling of the energy storage system; wherein, the second temperature interval is higher than the first temperature interval. Specifically, Figure 3 As shown, the compressor is controlled to start, and the four-way valve is controlled to be adjusted to the cooling mode, the booster water pump is turned on, the water circulation is started, the axial flow fan is not turned on (the axial flow fan can also be turned on to enhance the heat exchange and cooling effect, which is determined by the temperature of the water circulation system), and the three-way passage opens 2 and 3. The water circulates into the plate evaporator, and the water is cooled by the refrigerant circulation heat exchange. Then the water returns to the three-way, passes through the electric heating (not turned on), and enters the energy storage device. The water circulation absorbs the heat of the energy storage device to heat up, and then enters the plate evaporator for heat exchange and cooling, and this reciprocating cycle. When the compressor is running, the high-temperature refrigerant enters the microchannel condenser (refrigerant path) through the exhaust pipe, and then passes through the throttling of the electronic expansion valve to enter the plate evaporator, and then returns to the return air pipe to enter the compressor, and this reciprocating cycle, the low-temperature refrigerant and the high-temperature water exchange heat in the plate evaporator, absorbing the heat of the water, thereby cooling the water circulation system and the energy storage device.

[0036] If the comparison result of the first temperature interval is that the internal temperature is within the third temperature interval of the cooling standard temperature interval, the booster water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to allow the water to circulate through the energy storage system to achieve cooling of the energy storage system; wherein, the third temperature interval is higher than the second temperature interval. Specifically, Figure 3 As shown, the compressor is controlled to start, and the four-way valve is controlled to be adjusted to the cooling mode, the booster water pump is turned on, the water circulation is started, the axial flow fan is turned on, and the three-way passage opens 1, 2 and 3, 4. The water circulation enters the plate evaporator and the microchannel heat exchanger (water channel) at the same time, and the water is cooled by the refrigerant circulation heat exchange and the air heat exchange. Then the water returns to the three-way, is electrically heated (not turned on), and enters the energy storage device. The water circulation absorbs the heat of the energy storage device to heat up, and then enters the plate evaporator and the microchannel heat exchanger (water channel) for heat exchange and cooling, and this reciprocating cycle is repeated. When the compressor is running, the high-temperature refrigerant enters the microchannel condenser (refrigerant path) through the exhaust pipe, then passes through the throttling of the electronic expansion valve, enters the plate evaporator, and then returns to the return pipe to enter the compressor, in this reciprocating cycle. The low-temperature refrigerant and high-temperature water exchange heat in the plate evaporator and absorb the heat of the water, thereby cooling the water circulation system and the energy storage device. This method can simultaneously use air heat exchange and refrigerant heat exchange to cool the water circulation system. Turning on the axial flow fan can improve the heat exchange efficiency.

[0037] In addition, in an embodiment of the present invention, a thermal insulation control process for the energy storage system is also included. Specifically, after obtaining the internal temperature of the energy storage system, when the internal temperature is lower than the preset second target temperature, the air conditioner can be triggered to enter the thermal insulation mode state of the energy storage system, and the internal temperature is compared with the preset thermal insulation standard temperature interval to obtain a second temperature interval comparison result. Among them, the air conditioner also includes an electric heating module on the water circulation pipeline; the second target temperature is lower than the first target temperature. According to the comparison result of the second temperature interval, the air conditioner is triggered to execute a corresponding thermal insulation control strategy. Among them, the thermal insulation control strategy includes: a first thermal insulation control strategy based on the electric heating module for heating treatment, a second thermal insulation control strategy based on the plate evaporator for heating treatment, and a third thermal insulation control strategy based on the electric heating module and the plate evaporator for heating treatment.

[0038] In the process of triggering the air conditioner to execute the corresponding heat preservation control strategy according to the comparison result of the second temperature interval, if the comparison result of the second temperature interval is that the internal temperature is in the first temperature interval of the cooling standard temperature interval, the electric heating module on the water circulation pipeline in the air conditioner is controlled to turn on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system. Specifically, Figure 3 As shown, the function of electric heating is that when it is cold in winter, or when the energy storage device is just started, the temperature is too low, causing the energy storage device to work abnormally, the power loss is too much or the startup is abnormal. In this case, the electric heating can be turned on in advance, the compressor is not turned on, the pressure water pump is turned on, the tee opens the 2nd and 3rd channels, the water circulates through the electric heating to heat up, and then enters the energy storage device to preheat the device in advance, so as to keep the temperature of the energy storage device within a reasonable range and increase the service life and life of the battery of the energy storage device.

[0039] If the second temperature interval comparison result shows that the internal temperature is in the second temperature interval of the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system. Specifically, Figure 3 As shown, in cold winter weather, or when the energy storage device is just started, the temperature is too low, causing the energy storage device to work abnormally, with too much power loss or abnormal startup. The compressor can be started in advance, the four-way valve is adjusted to the heating mode, the pressurized water pump is turned on, the three-way valve opens the 2nd and 3rd channels, and the water circulates through the plate evaporator to exchange heat with the refrigerant and heat up, and then enters the energy storage device to preheat the device in advance, keeping the temperature of the energy storage device within a reasonable range, and increasing the service life and life of the battery of the energy storage device.

[0040] If the second temperature interval comparison result is that the internal temperature is in the third temperature interval of the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline once, and the electric heating module on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline twice, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system. Specifically, Figure 3As shown, in cold winter weather, or when the energy storage device is just started, the temperature is too low, causing the energy storage device to work abnormally, with too much power loss or abnormal startup. The compressor can be turned on in advance and the electric heating can be turned on at the same time. The four-way valve is adjusted to the heating mode, the pressurized water pump is turned on, and the three-way valve opens the 2nd and 3rd channels. The water circulates through the plate evaporator to exchange heat with the refrigerant and is heated twice through the electric heating. Then it enters the energy storage device to preheat the device in advance, keeping the temperature of the energy storage device within a reasonable range and increasing the service life and life of the battery of the energy storage device.

[0041] It should be noted that according to the formula C*M*△T=W, where C is the specific heat capacity of the mixture of water and ethylene glycol, which is a fixed value, M is the flow rate, △T is the temperature difference between the inlet and outlet water, and W is the capacity of the air conditioner, it can be concluded that when selecting different insulation methods, the change in the M flow rate can be adjusted according to the change in △T, so as to achieve different heat exchange capacities. When adjusting the flow rate and water pump speed, the lost electric energy is much less than the adjustment of the compressor frequency, thereby achieving the purpose of energy saving. The energy storage device must be controlled within a reasonable temperature range. Too high a temperature will lead to the insertion and placement of the electrolyte and the loss of electrode materials. Too low a temperature will slow down the electrochemical reaction rate and reduce the working efficiency of the energy storage device. Therefore, in the embodiment of the present invention, the specific control process can be as follows Figure 2 As shown. Among them, the water pump speed S1 S2 S3 are equal to K1*△T, K2*△T, K3*△T respectively; among them, K1, K2, K3 are the preset speed correction coefficients of three different cooling methods and heat preservation methods respectively, and △T is the actual inlet and outlet water temperature difference.

[0042] The constant temperature air conditioning control method for an energy storage system provided by the present invention obtains the internal temperature of the energy storage system, and when the internal temperature is higher than the first target temperature, triggers the air conditioner to enter the energy storage system cooling mode state, and compares the internal temperature with the cooling standard temperature interval to obtain the first temperature interval comparison result, and triggers the air conditioner to execute a corresponding cooling control strategy according to the first temperature interval comparison result; the cooling control strategy includes: a first cooling control strategy based on a microchannel heat exchanger for cooling treatment, a second cooling control strategy based on a plate evaporator and / or a microchannel condenser for cooling treatment, and a third cooling control strategy based on a microchannel heat exchanger, a plate evaporator and / or a microchannel condenser for cooling treatment together, which adjusts the operating state of the present invention in real time by detecting the temperature change and operating state of the energy storage device, and can save energy consumption while ensuring that the temperature of the energy storage device is maintained within a reasonable and safe range, which can effectively improve the temperature regulation efficiency and temperature control effect of the air conditioner on the energy storage system, and ensure the stable operation of the energy storage system.

[0043] The energy storage system constant temperature air conditioning control device provided by the present invention is described below. The energy storage system constant temperature air conditioning control device described below and the energy storage system constant temperature air conditioning control method described above can be referred to each other. Figure 4 As shown, it is a structural schematic diagram of the constant temperature air conditioning control device for the energy storage system provided by the present invention. The constant temperature air conditioning control device for the energy storage system of the present invention specifically includes the following parts: The temperature data acquisition unit 401 is used to obtain the internal temperature of the energy storage system.

[0044] The temperature comparison and analysis unit 402 is used to trigger the air conditioner to enter the energy storage system cooling mode when the internal temperature is higher than the first target temperature, and compare the internal temperature with the cooling standard temperature range to obtain a first temperature range comparison result; wherein the air conditioner includes a plate evaporator, a microchannel condenser and a microchannel heat exchanger.

[0045] A cooling control unit 403 is used to trigger the air conditioner to execute a corresponding cooling control strategy according to the comparison result of the first temperature range; wherein the cooling control strategy includes: a first cooling control strategy based on the microchannel heat exchanger for cooling treatment, a second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment, and a third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment together.

[0046] According to the energy storage system constant temperature air conditioning control device of the present invention, after obtaining the internal temperature of the energy storage system, it also includes: a heat preservation control unit; The heat preservation control unit is used for: When the internal temperature is lower than a preset second target temperature, the air conditioner is triggered to enter the energy storage system insulation mode, and the internal temperature is compared with a preset insulation standard temperature interval to obtain a second temperature interval comparison result; wherein the air conditioner further includes an electric heating module on a water circulation pipeline; the second target temperature is lower than the first target temperature; The air conditioner is triggered to execute a corresponding insulation control strategy according to the comparison result of the second temperature range; wherein the insulation control strategy includes: a first insulation control strategy based on the electric heating module for heating treatment, a second insulation control strategy based on the plate evaporator for heating treatment, and a third insulation control strategy based on the electric heating module and the plate evaporator for heating treatment together.

[0047] According to the constant temperature air conditioning control device for an energy storage system of the present invention, the temperature reduction control unit is used to: When the comparison result of the first temperature interval is that the internal temperature is within the first temperature interval of the cooling standard temperature interval, the pressurized water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the microchannel heat exchanger is controlled to operate so that the water circulation enters the microchannel heat exchanger and cools the water through air heat exchange, and then the corresponding three-way passage is controlled to allow the water circulation to flow through the energy storage system to achieve cooling of the energy storage system.

[0048] According to the energy storage system constant temperature air conditioning control device of the present invention, the temperature reduction control unit is used for: When the comparison result of the first temperature interval is that the internal temperature is located in the second temperature interval of the cooling standard temperature interval, the pressurized water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve cooling of the energy storage system; wherein, the second temperature interval is higher than the first temperature interval.

[0049] According to the energy storage system constant temperature air conditioning control device of the present invention, the temperature reduction control unit is used for: When the comparison result of the first temperature interval is that the internal temperature is located in the third temperature interval in the cooling standard temperature interval, the booster water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve cooling of the energy storage system; wherein, the third temperature interval is higher than the second temperature interval.

[0050] According to the energy storage system constant temperature air conditioning control device of the present invention, the method of triggering the air conditioning to execute a corresponding heat preservation control strategy according to the second temperature range comparison result includes: When the comparison result of the second temperature interval is that the internal temperature is within the first temperature interval of the cooling standard temperature interval, the electric heating module on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system; or When the second temperature interval comparison result shows that the internal temperature is within the second temperature interval of the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system; or When the comparison result of the second temperature interval is that the internal temperature is located in the third temperature interval in the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline once, and the electric heating module on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline for a second time, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system.

[0051] The energy storage system constant temperature air conditioning control device provided by the present invention obtains the internal temperature of the energy storage system, and when the internal temperature is higher than the first target temperature, triggers the air conditioner to enter the energy storage system cooling mode state, and compares the internal temperature with the cooling standard temperature interval to obtain the first temperature interval comparison result, and triggers the air conditioner to execute the corresponding cooling control strategy according to the first temperature interval comparison result; the cooling control strategy includes: a first cooling control strategy based on a microchannel heat exchanger for cooling treatment, a second cooling control strategy based on a plate evaporator and / or a microchannel condenser for cooling treatment, and a third cooling control strategy based on a microchannel heat exchanger, a plate evaporator and / or a microchannel condenser for cooling treatment, which can effectively improve the temperature regulation efficiency and temperature control effect of the air conditioner on the energy storage system, thereby ensuring the stable operation of the energy storage system.

[0052] Figure 5 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 5As shown, the electronic device may include: a processor (processor) 501, a communication interface (Communications Interface) 504, a memory (memory) 502 and a communication bus 503, wherein the processor 501, the communication interface 504, and the memory 502 communicate with each other through the communication bus 503. The processor 501 can call the logic instructions in the memory 502 to execute the constant temperature air conditioning control method of the energy storage system, which method includes: obtaining the internal temperature of the energy storage system; when the internal temperature is higher than the first target temperature, triggering the air conditioner to enter the energy storage system cooling mode state, and comparing the internal temperature with the cooling standard temperature interval to obtain a first temperature interval comparison result; wherein the air conditioner includes a plate evaporator, a microchannel condenser and a microchannel heat exchanger; triggering the air conditioner to execute a corresponding cooling control strategy according to the first temperature interval comparison result; wherein the cooling control strategy includes: a first cooling control strategy based on the microchannel heat exchanger for cooling treatment, a second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment, and a third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment.

[0053] In addition, the logic instructions in the above-mentioned memory 502 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0054] On the other hand, the present application also provides a computer program product, which includes a computer program, which can be stored on a computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the energy storage system constant temperature air conditioning control method provided by the above methods, the method comprising: obtaining the internal temperature of the energy storage system; when the internal temperature is higher than the first target temperature, triggering the air conditioner to enter the energy storage system cooling mode state, and comparing the internal temperature with the cooling standard temperature interval to obtain a first temperature interval comparison result; wherein the air conditioner includes a plate evaporator, a microchannel condenser and a microchannel heat exchanger; according to the first temperature interval comparison result, the air conditioner is triggered to execute a corresponding cooling control strategy; wherein the cooling control strategy includes: a first cooling control strategy based on the microchannel heat exchanger for cooling treatment, a second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment, and a third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment.

[0055] On the other hand, the present application also provides a computer-readable storage medium, which includes a stored program, wherein the program, when running, executes the constant temperature air conditioning control method for the energy storage system provided by the above methods, the method comprising: obtaining the internal temperature of the energy storage system; when the internal temperature is higher than the first target temperature, triggering the air conditioner to enter the cooling mode state of the energy storage system, and comparing the internal temperature with the cooling standard temperature interval to obtain a first temperature interval comparison result; wherein the air conditioner includes a plate evaporator, a microchannel condenser and a microchannel heat exchanger; according to the first temperature interval comparison result, the air conditioner is triggered to execute a corresponding cooling control strategy; wherein the cooling control strategy includes: a first cooling control strategy based on the microchannel heat exchanger for cooling treatment, a second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment, and a third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment.

[0056] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0057] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A constant temperature air conditioning control method for an energy storage system, characterized in that: include: Obtaining the internal temperature of the energy storage system; When the internal temperature is higher than the first target temperature, the air conditioner is triggered to enter the energy storage system cooling mode state, and the internal temperature is compared with the cooling standard temperature interval to obtain a first temperature interval comparison result; wherein the air conditioner includes a plate evaporator, a microchannel condenser and a microchannel heat exchanger; The air conditioner is triggered to execute a corresponding cooling control strategy according to the comparison result of the first temperature range; wherein the cooling control strategy includes: a first cooling control strategy based on the microchannel heat exchanger for cooling treatment, a second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment, and a third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment together.

2. The constant temperature air conditioning control method for an energy storage system according to claim 1, characterized in that: The triggering the air conditioner to execute a corresponding temperature reduction control strategy according to the first temperature interval comparison result includes: When the comparison result of the first temperature interval is that the internal temperature is within the first temperature interval of the cooling standard temperature interval, the pressurized water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the microchannel heat exchanger is controlled to operate so that the water circulation enters the microchannel heat exchanger and cools the water through air heat exchange, and then the corresponding three-way passage is controlled to allow the water circulation to flow through the energy storage system to achieve cooling of the energy storage system.

3. The constant temperature air conditioning control method of the energy storage system according to claim 2, characterized in that: The triggering the air conditioner to execute a corresponding temperature reduction control strategy according to the first temperature interval comparison result includes: When the comparison result of the first temperature interval is that the internal temperature is located in the second temperature interval of the cooling standard temperature interval, the pressurized water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve cooling of the energy storage system; wherein, the second temperature interval is higher than the first temperature interval.

4. The constant temperature air conditioning control method for an energy storage system according to claim 3, characterized in that: The triggering the air conditioner to execute a corresponding temperature reduction control strategy according to the first temperature interval comparison result includes: When the comparison result of the first temperature interval is that the internal temperature is located in the third temperature interval in the cooling standard temperature interval, the booster water pump and the three-way passage on the water circulation pipeline in the air conditioner are controlled to start the water circulation, and the four-way valve is adjusted to the cooling mode to start the water circulation, and the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser are controlled to operate so that the water circulates into the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser to cool the water, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve cooling of the energy storage system; wherein, the third temperature interval is higher than the second temperature interval.

5. The constant temperature air conditioning control method for an energy storage system according to claim 1, characterized in that: After obtaining the internal temperature of the energy storage system, it also includes: When the internal temperature is lower than a preset second target temperature, the air conditioner is triggered to enter the energy storage system insulation mode, and the internal temperature is compared with a preset insulation standard temperature interval to obtain a second temperature interval comparison result; wherein the air conditioner further includes an electric heating module on a water circulation pipeline; the second target temperature is lower than the first target temperature; The air conditioner is triggered to execute a corresponding insulation control strategy according to the comparison result of the second temperature range; wherein the insulation control strategy includes: a first insulation control strategy based on the electric heating module for heating treatment, a second insulation control strategy based on the plate evaporator for heating treatment, and a third insulation control strategy based on the electric heating module and the plate evaporator for heating treatment together.

6. The constant temperature air conditioning control method for an energy storage system according to claim 5, characterized in that: The triggering the air conditioner to execute a corresponding heat preservation control strategy according to the second temperature range comparison result includes: When the comparison result of the second temperature interval is that the internal temperature is within the first temperature interval of the cooling standard temperature interval, the electric heating module on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system; or When the second temperature interval comparison result shows that the internal temperature is within the second temperature interval of the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system; or When the comparison result of the second temperature interval is that the internal temperature is located in the third temperature interval in the cooling standard temperature interval, the plate evaporator on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline once, and the electric heating module on the water circulation pipeline in the air conditioner is controlled to be turned on to heat the water in the water circulation pipeline for a second time, and then the corresponding three-way passage is controlled to make the water circulate through the energy storage system to achieve the heating of the energy storage system.

7. A constant temperature air conditioning control device for an energy storage system, characterized in that: include: A temperature data acquisition unit, used to obtain the internal temperature of the energy storage system; A temperature comparison and analysis unit, used for triggering the air conditioner to enter the energy storage system cooling mode state when the internal temperature is higher than the first target temperature, and comparing the internal temperature with the cooling standard temperature interval to obtain a first temperature interval comparison result; wherein the air conditioner includes a plate evaporator, a microchannel condenser and a microchannel heat exchanger; A constant temperature air conditioning control unit, used for triggering the air conditioning to execute a corresponding cooling control strategy according to the comparison result of the first temperature range; wherein the cooling control strategy includes: a first cooling control strategy based on the microchannel heat exchanger for cooling treatment, a second cooling control strategy based on the plate evaporator and / or the microchannel condenser for cooling treatment, and a third cooling control strategy based on the microchannel heat exchanger, the plate evaporator and / or the microchannel condenser for cooling treatment together.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the program, the steps of the constant temperature air conditioning control method for the energy storage system as described in any one of claims 1 to 6 are implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the constant temperature air conditioning control method for an energy storage system as claimed in any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the constant temperature and air conditioning control method for the energy storage system as claimed in any one of claims 1 to 6 is implemented.

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