Temperature control system of energy storage system

Abstract

The utility model relates to a temperature control system of an energy storage system. The temperature control system comprises a first temperature control device, a second temperature control device, a battery temperature control device, a matched temperature control device and a device switching module. The first temperature control device is used for providing temperature control processing in a first temperature control mode, the second temperature control device is used for providing temperature control processing in a second temperature control mode, the battery temperature control device executes temperature control operation according to the first temperature control mode, and the matched temperature control device executes temperature control operation according to the first temperature control mode or the second temperature control mode. And the matched temperature control equipment executes temperature control operation according to the first temperature control mode or the second temperature control mode. The temperature of the energy storage battery pack and the matched electrical equipment can be independently controlled in different temperature control modes, temperature interaction between the energy storage battery pack and the matched electrical equipment can be indirectly achieved in the same temperature control mode, the overall temperature of the energy storage system is adjusted through the heat difference between the energy storage battery pack and the matched electrical equipment, energy consumption of temperature control is reduced, and meanwhile the temperature control efficiency is improved. And the temperature control effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage system temperature control, and particularly to an energy storage system temperature control system. Background Art

[0002] An energy storage system is an integrated device composed of an energy storage battery pack and supporting electrical equipment, which is used to comprehensively realize the application of electrochemical energy storage, such as charge and discharge, AC-DC conversion, etc. The supporting electrical equipment generally includes a power conversion system (PCS), a battery management system (BMS), an energy management system (EMS), and some peripheral circuits, etc. During the actual operation of the energy storage system, when the energy storage batteries in the energy storage battery pack are in use, heat is generated on the battery surface due to chemical, electrochemical changes, electron migration, and material transport in the internal structure. If the generated heat cannot be completely dissipated into the environment, it will cause the accumulation of heat inside the battery, affecting the working characteristics of the battery and even leading to thermal runaway. At the same time, too low a temperature will also reduce the performance of the energy storage battery, affecting the original capacity of the energy storage battery. In addition, the supporting electrical equipment will also generate energy consumption according to the work of the system and accumulate heat.

[0003] Therefore, in order to ensure the normal operation of the energy storage system, a temperature control system is usually configured for the energy storage system to control the working temperature of the energy storage system within a reasonable range. The current temperature control system mainly conducts overall temperature control inside the energy storage system cabinet, that is, simultaneously performs heat dissipation treatment on the energy storage battery pack and the supporting electrical equipment. However, the heat generation of the energy storage battery pack and the supporting electrical equipment is different, and the energy storage battery pack also needs to cope with low-temperature conditions, which results in the temperature control effect being unable to take into account the temperature control requirements of both, increasing the energy consumption of the temperature control system in vain and also affecting the operation effect of the energy storage system. Summary of the Utility Model

[0004] In order to address the defect that the current temperature control system cannot take into account the temperature control requirements of each part in the energy storage system, resulting in waste of temperature control energy consumption and affecting the temperature control effect, the embodiments of the present disclosure provide an energy storage system temperature control system.

[0005] At least one embodiment of the present disclosure provides an energy storage system temperature control system, including:

[0006] A first temperature control device for providing temperature control processing in a first temperature control mode;

[0007] A second temperature control device for providing temperature control processing in a second temperature control mode;

[0008] A battery temperature control device for performing temperature control operations according to the first temperature control mode; wherein, the battery temperature control device is used to control the temperature of the energy storage battery pack.

[0009] A supporting temperature control device for performing temperature control operations according to the first temperature control mode or the second temperature control mode; wherein, the supporting temperature control device is used to control the temperature of the supporting electrical equipment;

[0010] An equipment switching module for switching between the first temperature control mode and the second temperature control mode.

[0011] The energy storage system temperature control system of the embodiments of the present disclosure includes a first temperature control device, a second temperature control device, a battery temperature control device, a supporting temperature control device, and an equipment switching module. The first temperature control device is used to provide temperature control processing in the first temperature control mode, the second temperature control device is used to provide temperature control processing in the second temperature control mode, the battery temperature control device is used to perform temperature control operations according to the first temperature control mode, the supporting temperature control device is used to perform temperature control operations according to the first temperature control mode or the second temperature control mode, and the supporting temperature control device is used to perform temperature control operations according to the first temperature control mode or the second temperature control mode. According to the cooperation of the above modules, the temperatures of the energy storage battery pack and the supporting electrical equipment can be independently controlled in different temperature control modes, while the temperature interaction between the energy storage battery pack and the supporting electrical equipment can be indirectly realized in the same temperature control mode. The overall temperature of the energy storage system is adjusted by using the heat difference between the two, reducing the energy consumption of temperature control while improving the temperature control effect.

[0012] As one optional embodiment, the supporting temperature control device includes:

[0013] A supporting coolant pipeline respectively connected to the first temperature control device and the second temperature control device for accommodating coolant;

[0014] A water cooling module disposed on one side of the supporting electrical equipment and in communication with the supporting coolant pipeline.

[0015] As one optional embodiment, the battery temperature control device includes:

[0016] A battery coolant pipeline respectively connected to the first temperature control device for accommodating coolant;

[0017] A water-cooled heat exchanger disposed on one side of the energy storage battery pack and in communication with the battery coolant pipeline.

[0018] As one optional embodiment, the first temperature control device includes:

[0019] A first heat exchanger for performing heat exchange with the supporting coolant pipeline and the battery coolant pipeline;

[0020] A refrigeration module for providing refrigerant for the heat exchange of the first heat exchanger.

[0021] As one optional embodiment, the refrigeration module includes:

[0022] Condenser;

[0023] Compressor;

[0024] Pressure reducing valve;

[0025] Refrigerant pipeline, used to connect the condenser, the compressor, the pressure reducing valve and the first heat exchanger respectively.

[0026] As one optional embodiment, the second temperature control device includes:

[0027] Second heat exchanger, used to conduct with the supporting coolant pipeline.

[0028] As one optional embodiment, the device switching module includes:

[0029] Pipeline control device, used to introduce the coolant of the supporting coolant pipeline into the first temperature control device or the second temperature control device;

[0030] Wherein, when the coolant is introduced into the first temperature control device, the first temperature control mode is executed; when the coolant is introduced into the second temperature control device, the second temperature control mode is executed.

[0031] As one optional embodiment, the device switching module includes:

[0032] Three-way valve, respectively connected to the first temperature control device, the second temperature control device and the supporting coolant pipeline.

[0033] As one optional embodiment, the supporting electrical equipment is an energy storage converter.

[0034] As one optional embodiment, it further includes:

[0035] Radiator fan, used to provide cooling air flow for the first heat exchanger and / or the second heat exchanger.

[0036] As one optional embodiment, it further includes:

[0037] First water pump, conduct with the supporting coolant pipeline, used to pump in coolant.

[0038] As one optional embodiment, it further includes:

[0039] Second water pump, conduct with the battery coolant pipeline, used to pump in coolant. Description of the drawings

[0040] Figure 1 Schematic diagram of the module structure of the energy storage system temperature control system for a disclosed embodiment;

[0041] Figure 2 Schematic diagram of the module structure of the temperature control system for an energy storage system in a preferred embodiment;

[0042] Figure 3 Schematic diagram of the module structure of the temperature control system for an energy storage system in a specific embodiment;

[0043] Figure 4 Schematic diagram of the module structure of the temperature control system for an energy storage system in a specific embodiment;

[0044] Reference numerals: First temperature control device 100, second temperature control device 101, battery temperature control device 102, supporting temperature control device 103, device switching module 104, supporting coolant pipeline 200, water cooling module 201, battery coolant pipeline 202, water-cooled heat exchanger 203, first heat exchanger 204, refrigeration module 205, second heat exchanger 206, cooling fan 207, condenser 300, compressor 301, pressure reducing valve 302, refrigerant pipeline 303, first water pump 304, second water pump 305, three-way valve 306. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0046] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before this word cover the elements or items listed after this word and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0047] In order to keep the following description of the embodiments of the present disclosure clear and concise, the detailed descriptions of some known functions and known components are omitted in the present disclosure.

[0048] Any embodiment of the present disclosure provides a temperature control system for an energy storage system.

[0049] Figure 1 It is a schematic diagram of the module structure of the temperature control system for an energy storage system according to an embodiment of the disclosure, as Figure 1 shown. The temperature control system for an energy storage system according to an embodiment of the disclosure includes:

[0050] A first temperature control device 100 for providing temperature control processing in a first temperature control mode;

[0051] A second temperature control device 101 for providing temperature control processing in a second temperature control mode;

[0052] A battery temperature control device 102 for performing temperature control operations according to the first temperature control mode; wherein, the battery temperature control device 102 is used to control the temperature of the energy storage battery pack;

[0053] A supporting temperature control device 103 for performing temperature control operations according to the first temperature control mode or the second temperature control mode; wherein, the supporting temperature control device 103 is used to control the temperature of the supporting electrical equipment;

[0054] A device switching module 104 for switching between the first temperature control mode and the second temperature control mode.

[0055] The first temperature control device 100 and the second temperature control device 101 select different heat dissipation devices, and their heat dissipation effects are different, and the generated heat dissipation effects are applicable to different temperature ranges. Among them, the heat dissipation devices include active heat dissipation devices and passive heat dissipation devices. The active heat dissipation device has a better heat dissipation effect and is suitable for heat dissipation in a high temperature range, but has a higher energy consumption. The passive heat dissipation device has a poor heat dissipation effect but a lower energy consumption. The active heat dissipation device includes refrigeration equipment, cooling fans, etc., and the passive heat dissipation device includes various air-cooled devices based on heat dissipation structure design.

[0056] As an optional embodiment, the first temperature control device 100 is a refrigeration device including a first heat exchanger. The second temperature control device 101 is an air-cooled device including a second heat exchanger. Among them, both the first heat exchanger and the second heat exchanger are used to cooperate with the supporting temperature control device 103 to indirectly conduct the heat generated by the energy storage battery pack to the first heat exchanger and the second heat exchanger through a temperature medium, and the first heat exchanger and the second heat exchanger perform heat dissipation and cooling. Among them, the temperature medium can be a coolant, cooling water or a gas medium.

[0057] Among them, the first heat exchanger is also used in cooperation with the battery temperature control device 102 to indirectly conduct the heat generated by the energy storage battery pack to the first heat exchanger through a temperature medium, and the first heat exchanger dissipates heat and cools down. At this time, the first heat exchanger serves as a temperature conduction medium, and can indirectly realize the heat exchange between the supporting electrical equipment and the energy storage battery pack.

[0058] Among them, the energy storage battery pack includes a plurality of battery packs.

[0059] As one of the preferred embodiments, Figure 2 is a schematic structural diagram of the temperature control system module of an energy storage system in a preferred embodiment, as Figure 2 shown, the supporting temperature control device 103 includes:

[0060] The supporting coolant pipeline 200 is respectively connected to the first temperature control device 100 and the second temperature control device 101, and is used to accommodate the coolant;

[0061] The water cooling module 201 is arranged on one side of the supporting electrical equipment and is in communication with the supporting coolant pipeline 200.

[0062] Among them, the water cooling module 201 is arranged on one side of the supporting electrical equipment and absorbs the heat of the supporting electrical equipment according to the water cooling mode. As Figure 2 shown, the supporting coolant pipeline 200 forms a circulation loop for the coolant, and the coolant circulates in the supporting coolant pipeline 200. The water cooling module 201, the first heat exchanger and the second heat exchanger are all located in this circulation. According to the control of the device switching module 104, the first heat exchanger and the second heat exchanger are controllably and selectively selected to enter this circulation, and the first heat exchanger or the second heat exchanger selectively plays a heat dissipation role.

[0063] As one of the preferred embodiments, Figure 2 is a schematic structural diagram of the temperature control system module of an energy storage system in a preferred embodiment, as Figure 2 shown, the battery temperature control device 102 includes:

[0064] The battery coolant pipeline 202 is respectively connected to the first temperature control device 100 and is used to accommodate the coolant;

[0065] The water cooling heat exchanger 203 is arranged on one side of the energy storage battery pack and is in communication with the battery coolant pipeline 202.

[0066] Among them, the water cooling heat exchanger 203 is arranged on one side of the energy storage battery pack and absorbs the heat of the energy storage battery pack according to the evaporation effect. As Figure 2As shown, the battery coolant pipe 202 forms a coolant circulation loop, and the coolant circulates in the battery coolant pipe 202. The water-cooled heat exchanger 203 and the first heat exchanger are both located in this circulation. The coolant in the battery coolant pipe 202 and the coolant in the supporting coolant pipe 200 can complete heat exchange in the first heat exchanger.

[0067] As one of the preferred embodiments, as Figure 2 shown, the first temperature control device 100 includes:

[0068] The first heat exchanger 204, which is used for heat exchange with the supporting coolant pipe 200 and the battery coolant pipe 202;

[0069] The refrigeration module 205, which is used to provide refrigerant for the heat exchange of the first heat exchanger 204.

[0070] Among them, the refrigeration module 205 serves as the heat dissipation basis of the active heat dissipation device, and cools the coolant through the refrigerant. The refrigerant, as the heat dissipation medium, can be a low-temperature liquid or a low-temperature gas. The refrigerant exchanges heat with the coolant in the first heat exchanger 204 to reduce the temperature of the coolant. The cooled coolant circulates to the water-cooling module 201 or the water-cooled heat exchanger 203 according to the original pipeline, improving the cooling effect on the supporting electrical equipment or the energy storage battery pack.

[0071] Among them, the refrigeration module 205 can be selected from compression refrigeration, liquid gas refrigeration, or heat dissipation fans, etc.

[0072] As one of the preferred embodiments, Figure 3 is a schematic structural diagram of the temperature control system module of an energy storage system in a specific embodiment. As Figure 3 shown, the refrigeration module 205 includes:

[0073] The condenser 300;

[0074] The compressor 301;

[0075] The pressure reducing valve 302;

[0076] The refrigerant pipeline 303, which is used to connect the condenser 300, the compressor 301, the pressure reducing valve 302, and the first heat exchanger 204 respectively.

[0077] As Figure 3 shown, the condenser 300 and the compressor 301 generate refrigerant, which exchanges heat with the coolant in the first heat exchanger 204 to reduce the temperature of the coolant.

[0078] As one of the preferred embodiments, as Figure 2 shown, the second temperature control device 101 includes:

[0079] A second heat exchanger 206 for communicating with the supporting coolant pipeline 200.

[0080] Similarly, in the second heat exchanger 206, the coolant circulating in the supporting coolant pipeline 200 can be cooled.

[0081] As a preferred embodiment, as Figure 2 shown, the temperature control system of the energy storage system in a preferred embodiment further includes:

[0082] A cooling fan 207 for generating a cooling air flow for the first heat exchanger 204 or the second heat exchanger 206.

[0083] According to the cooling air flow, the temperature of the coolant in the first heat exchanger 204 or the second heat exchanger 206 is reduced.

[0084] As a preferred embodiment, in actual operation, an air flow channel is configured for the cooling fan 207, and both the first heat exchanger 204 and the second heat exchanger 206 are arranged in the air flow channel, and the cooling of the first heat exchanger 204 and the second heat exchanger 206 is realized by one cooling fan 2075, reducing the configuration of the cooling fan 207.

[0085] As a preferred embodiment, as Figure 3 shown, the temperature control system of the energy storage system in a specific embodiment further includes:

[0086] A first water pump 304 communicating with the supporting coolant pipeline 200 for pumping in coolant.

[0087] A second water pump 305 communicating with the battery coolant pipeline 202 for pumping in coolant.

[0088] According to the water pumps (the first water pump 304 and the second water pump 305) pumping in coolant or improving the circulation efficiency of the coolant in the coolant pipelines (the supporting coolant pipeline 200 and the battery coolant pipeline 202). Among them, according to the actual switch control, the water pumps can optionally pump in new coolant or increase the pressure of the original coolant in the coolant pipelines.

[0089] Among them, the device switching module 104 switches between the first temperature control mode and the second temperature control mode, that is, controls the first temperature control device 100 to work or the second temperature control device 101 to work, including a switch control device or a pipeline control device. Taking the switch control device as an example, the device switching module 104 adopts the switch control principle to start the first temperature control device 100 or the second temperature control device 101.

[0090] As a preferred embodiment, the device switching module 104 includes:

[0091] A pipeline control device for introducing the coolant in the supporting coolant pipeline 200 into the first temperature control device 100 or the second temperature control device 101;

[0092] Wherein, when the coolant is introduced into the first temperature control device 100, a first temperature control mode is executed; when the coolant is introduced into the second temperature control device 101, a second temperature control mode is executed.

[0093] The pipeline control device selects a coolant channel according to the switching mode, and alternatively introduces the coolant in the supporting coolant pipeline 200 into the first temperature control device 100 or the second temperature control device 101, so as to incorporate the first temperature control device 100 or the second temperature control device 101 into the coolant circulation loop. Among them, a controlled pipeline valve can be selected for the pipeline control device.

[0094] As a preferred embodiment, as Figure 3 shown, the device switching module 104 includes:

[0095] A three-way valve 306, which is respectively connected to the first temperature control device 100, the second temperature control device 101 and the supporting coolant pipeline 200.

[0096] As Figure 3 shown, when the three-way valve 1-2 is conducted, the first heat exchanger 204 is incorporated into the coolant circulation loop of the supporting coolant pipeline 200, and the first temperature control device 100 is activated and enabled. When the three-way valve 2-3 is conducted, the second heat exchanger 206 is incorporated into the coolant circulation loop of the supporting coolant pipeline 200, and the second temperature control device 101 is activated and enabled.

[0097] As Figure 3 shown, at this time, the waste heat of the supporting electrical equipment is transferred to the first heat exchanger 204 through the second heat exchanger 206. At this time, within the first temperature control mode, the supporting electrical equipment uses the first heat exchanger 204 and the second heat exchanger 206 to work simultaneously; in the second temperature control mode, the supporting electrical equipment only uses the second heat exchanger 206 to work alone.

[0098] It should be noted that in the first temperature control mode executed by the energy storage battery pack, only the first heat exchanger 204 works alone.

[0099] At this time, within the first temperature control mode, the waste heat of the supporting electrical equipment is exchanged to the energy storage battery pack through the first heat exchanger 204, which can be used to heat or keep warm the energy storage battery pack.

[0100] As one of the optional embodiments, Figure 4 is a schematic structural diagram of the temperature control system module of the energy storage system for another specific embodiment. As Figure 4As shown, the three-way valve 306 is placed in front in the supporting coolant pipeline 200. In the first temperature control mode, the supporting electrical equipment operates independently with the first heat exchanger 204; in the second temperature control mode, the supporting electrical equipment only operates independently with the second heat exchanger 206.

[0101] At this time, in the first temperature control mode, the heat of the supporting electrical equipment is not exchanged by the second heat exchanger 206 to the energy storage battery pack, and can be used to heat or keep warm the energy storage battery pack, and the heat given to the energy storage battery pack is relatively high.

[0102] The utilization of the heat of the supporting electrical equipment can increase the temperature of the energy storage battery pack, reduce the energy consumption of the overall temperature control of the system, and balance the temperatures of the supporting electrical equipment and the energy storage battery pack.

[0103] As a preferred embodiment, the supporting electrical equipment is an energy storage converter

[0104] Using the heat of the energy storage converter can improve the heating effect on the energy storage battery pack.

[0105] Preferably, the water cooling module 201 selects the PCS water cooling unit of the energy storage converter. At this time, the first heat exchanger can also reduce the energy consumption of the PCS water cooling unit for water cooling.

[0106] The energy storage system temperature control system of any embodiment of the present disclosure includes a first temperature control device 100, a second temperature control device 101, a battery temperature control device 102, a supporting temperature control device 103, and a device switching module 104. The first temperature control device 100 is used to provide temperature control processing in the first temperature control mode, the second temperature control device 101 is used to provide temperature control processing in the second temperature control mode, the battery temperature control device 102 is used to perform temperature control operations according to the first temperature control mode, and the supporting temperature control device 103 is used to perform temperature control operations according to the first temperature control mode or the second temperature control mode. According to the cooperation of the above modules, the temperatures of the energy storage battery pack and the supporting electrical equipment can be independently controlled in different temperature control modes, and the temperature interaction between the energy storage battery pack and the supporting electrical equipment can be indirectly realized in the same temperature control mode. By using the heat difference between the two to adjust the overall temperature of the energy storage system, while reducing the energy consumption of temperature control, the temperature control effect is improved.

[0107] For the present disclosure, the following points also need to be explained:

[0108] (1) The accompanying drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0109] (2) For clarity, in the drawings used to describe the embodiments of the present utility model, the thickness and dimensions of layers or structures are enlarged. It can be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, the element can be "directly" on or under the other element, or there can be intermediate elements.

[0110] (3) Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments. The above are only the specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be subject to the protection scope of the claims.

[0111] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0112] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A temperature control system for an energy storage system, characterized in that: include: A first temperature control device, used to provide temperature control processing in a first temperature control mode; A second temperature control device, used to provide temperature control processing in a second temperature control mode; A battery temperature control device, used to perform a temperature control operation according to the first temperature control mode; wherein the battery temperature control device is used to control the temperature of the energy storage battery pack; A matching temperature control device, used to perform a temperature control operation according to the first temperature control mode or the second temperature control mode; wherein the matching temperature control device is used to control the temperature of the matching electrical equipment; A device switching module is used to switch between the first temperature control mode and the second temperature control mode.

2. The energy storage system temperature control system according to claim 1, characterized in that: The supporting temperature control equipment includes: A matching coolant pipeline, connected to the first temperature control device and the second temperature control device respectively, for containing coolant; The water cooling module is arranged on one side of the supporting electrical equipment and is connected to the supporting coolant pipeline.

3. The energy storage system temperature control system according to claim 2, characterized in that: The battery temperature control device comprises: Battery coolant pipelines, respectively connected to the first temperature control devices, for containing coolant; The water-cooled heat exchanger is arranged on one side of the energy storage battery pack and is connected to the battery coolant pipeline.

4. The energy storage system temperature control system according to claim 3, characterized in that: The first temperature control device comprises: A first heat exchanger, used for performing heat exchange with the matching coolant pipeline and the battery coolant pipeline; A refrigeration module is used to provide a refrigerant for the heat exchange of the first heat exchanger.

5. The energy storage system temperature control system according to claim 4, characterized in that: The refrigeration module comprises: Condenser; compressor; Pressure reducing valve; The refrigerant pipeline is used to respectively connect the condenser, the compressor, the pressure reducing valve and the first heat exchanger.

6. The energy storage system temperature control system according to claim 2, characterized in that: The second temperature control device comprises: The second heat exchanger is used to communicate with the matching coolant pipeline.

7. The energy storage system temperature control system according to claim 2, characterized in that: The device switching module includes: A pipeline control device, used for introducing the coolant of the matching coolant pipeline into the first temperature control device or the second temperature control device; When the coolant is introduced into the first temperature control device, the first temperature control mode is executed; when the coolant is introduced into the second temperature control device, the second temperature control mode is executed.

8. The energy storage system temperature control system according to claim 7, characterized in that: The device switching module includes: A three-way valve is used to connect the first temperature control device, the second temperature control device and the matching coolant pipeline respectively.

9. The energy storage system temperature control system according to claim 1, characterized in that: The supporting electrical equipment is an energy storage converter.

10. The energy storage system temperature control system according to claim 2, characterized in that: Also includes: The first water pump is connected to the matching coolant pipeline and is used for pumping coolant.

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