Liquid cooling system, liquid cooling cabinet, control method, storage medium, controller and computing center system

Abstract

This application relates to a liquid cooling system, a liquid cooling cabinet, a control method, a storage medium, a controller, and a computing center system. The liquid cooling system includes: a pipe connector connected to an external cooling distribution device; a direct cooling plate attached to the surface of electronic components; a drive pump connected to the direct cooling plate; an expander with its inlet connected to the outlet of the direct cooling plate; and a bypass valve connected in parallel to the expander. Through this technical solution, high heat flux density electronic components are efficiently cooled using a refrigerant phase change method, and waste heat is recovered by utilizing the high-temperature vapor formed by refrigerant vaporization to drive the expander, thereby meeting the heat dissipation requirements of high heat flux density electronic components and achieving efficient utilization of waste heat.

Description

Technical Field

[0001] This application relates to the field of server rack cooling, and more particularly to a liquid cooling system, a liquid-cooled server rack, a control method, a storage medium, a controller, and a computing center system. Background Technology

[0002] The rapid development of artificial intelligence technology has driven the large-scale deployment of high-performance computing cards (such as GPUs / TPUs) in computing centers. The increased core computing power of these cards is accompanied by a significant increase in power consumption, resulting in heat flux densities far exceeding the limits of traditional air cooling. To address the heat dissipation problem of high-performance computing cards, existing technologies mainly employ two types of liquid cooling solutions: cold plate liquid cooling and immersion liquid cooling. Cold plate liquid cooling conducts heat by attaching a metal cold plate to the surface of the computing card's heatsink, is compatible with existing rack structures and is easy to maintain, but the interface thermal resistance is insufficient to meet the heat dissipation requirements of chips with ultra-high heat flux densities. Immersion liquid cooling, on the other hand, immerses electronic components in an insulating coolant for direct heat exchange, improving heat dissipation efficiency, but rack reconstruction is costly.

[0003] Meanwhile, the waste heat recovery of the computing center relies on an external recovery system (such as solar-coupled organic Rankine cycle), but the heat source and the recovery system are spatially separated, resulting in serious heat loss due to long-distance pipeline transfer. The unsteady heat energy output by the heat dissipation module cannot match the stable operation requirements of the recovery system.

[0004] Therefore, the spatial separation and parameter adaptation between heat dissipation and waste heat recovery result in a double decline in the energy utilization rate of the computing center. Summary of the Invention

[0005] This application provides a liquid cooling system, a liquid cooling cabinet, a control method, a storage medium, a controller, and a computing center system, which improves the heat dissipation of high heat flux density electronic components in the computing center, thereby at least partially solving the above-mentioned technical problems.

[0006] To achieve the above objectives, according to a first aspect of this application, a liquid cooling system is provided, comprising:

[0007] Pipe fittings, used to connect to external cooling distribution devices;

[0008] Direct cooling plate, attached to the surface of electronic components;

[0009] The drive pump is connected to the direct cooling plate;

[0010] The expander has its inlet connected to the outlet of the straight cooling plate;

[0011] A bypass valve is connected in parallel to the expander.

[0012] Optionally, the inlet of the drive pump is connected to the inlet pipe of the pipe joint, and the outlet is connected to the inlet of the direct cooling plate.

[0013] Optionally, the bypass valve is provided with a first outlet and a second outlet, the first outlet being connected to the outlet pipe of the pipe joint via the expander, and the second outlet being directly connected to the outlet pipe of the pipe joint.

[0014] Optionally, the bypass valve is configured to switch the refrigerant flow to the first outlet or the second outlet according to a control signal.

[0015] According to a second aspect of this application, a liquid-cooled cabinet is provided, comprising:

[0016] The liquid cooling system described above;

[0017] The generator is connected to the expander of the liquid cooling system via a drive.

[0018] The energy storage control system, connected to the liquid cooling system via signal, is used for:

[0019] The opening and closing of the bypass valve of the liquid cooling system is controlled based on the heat load parameters.

[0020] The waste heat generated by the liquid cooling system is converted into electrical energy, and the electrical energy is stored and distributed according to the heat load parameters and the state of charge parameters of the energy storage battery.

[0021] The heat load parameters are determined based on the load of the electronic components in the liquid-cooled cabinet, the temperature parameters of the electronic components, and the output power of the expander.

[0022] According to a third aspect of this application, a control method for a liquid-cooled cabinet is also provided, applied to the liquid-cooled cabinet described in the embodiments of this application, comprising:

[0023] Monitor the state of charge parameters of the energy storage battery and the thermal load parameters of the system; wherein, the thermal load parameters are determined by the electronic component load of the liquid-cooled cabinet, the electronic component temperature parameters, and the output power of the expander;

[0024] Based on the heat load parameters, control the opening and closing of the bypass valve of the liquid cooling system to switch the waste heat recovery path;

[0025] The waste heat generated by the liquid cooling system is converted into electrical energy, and the electrical energy is stored and distributed according to the state of charge parameters and the heat load parameters.

[0026] According to a fourth aspect of this application, a computer-readable storage medium is also provided, on which a computer program or instructions are stored, wherein when the computer program or instructions are executed by a processor, the steps of the method described in the embodiments of this application are implemented.

[0027] According to a fifth aspect of this application, a computer program product is also provided, including a computer program or instructions that, when executed by a processor, implement the steps of the method described in the embodiments of this application.

[0028] According to a sixth aspect of this application, a controller is also provided, the controller storing a computer program or instructions that, when executed by a processor, implement the steps of the method described in the embodiments of this application.

[0029] According to the seventh aspect of this application, a computing center system is also provided, comprising:

[0030] External heat dissipation equipment;

[0031] A cooling distribution device, connected to the external heat dissipation equipment;

[0032] The liquid-cooled cabinets described in multiple embodiments of this application are provided, wherein the inlet end of each liquid-cooled cabinet is connected to the outlet end of the cooling capacity distribution device, and the outlet end of each liquid-cooled cabinet is connected to the inlet end of the cooling capacity distribution device.

[0033] In summary, the embodiments of this application utilize the above-described technical solution to efficiently dissipate heat from high heat flux density electronic components through refrigerant phase change, and recover waste heat by using the high-temperature vapor formed by refrigerant vaporization to drive an expander. During operation of the liquid cooling system, the liquid refrigerant is driven by a pump into the direct cooling plate and vaporizes. This process allows a large amount of heat to be dissipated through the latent heat field, thereby meeting the heat dissipation requirements of high heat flux density electronic components and achieving efficient utilization of waste heat.

[0034] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0037] Figure 1 This is a schematic diagram of the structure of a computing center system provided in an exemplary embodiment of this application;

[0038] Figure 2This is a schematic diagram of the branch flow channel of a flow distribution component in a computing center system provided in an exemplary embodiment of this application;

[0039] Figure 3 This is a schematic diagram of the structure of a liquid-cooled cabinet provided in an exemplary embodiment of this application;

[0040] Figure 4 This is a schematic diagram showing the positions of the direct cooling plate and electronic components in a liquid-cooled cabinet according to an exemplary embodiment of this application;

[0041] Figure 5 This is a schematic diagram of the signal connection of a liquid-cooled cabinet provided in an exemplary embodiment of this application;

[0042] Figure 6 This is a flowchart of the steps of a control method for a liquid-cooled cabinet provided in an exemplary embodiment of this application.

[0043] Explanation of reference numerals in the attached figures:

[0044] 10. Computing center system; 11. External heat dissipation equipment; 12. Cooling distribution device; 13. Liquid-cooled cabinet;

[0045] 120. Flow distribution assembly; 1201. Branch flow channel; 1202. Control valve; 1203. Merging flow channel; 121. Heat exchanger;

[0046] 131. Liquid cooling system; 1310. Pipe fittings; 1311. Drive pump; 1312. Bypass valve; 1313. Expander; 1314. Direct cooling plate; 132. Energy storage control system; 1320. Internal power supply module; 1321. Controller; 1322. Energy storage battery; 1323. Generator; 133. Electronic components; 134. External power grid. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0048] Based on the issues mentioned in the background, existing cooling technologies for high-performance computing cards mainly include air cooling and liquid cooling. Air cooling is primarily used in scenarios with low heat flux density and is unsuitable for next-generation computing cards with higher heat flux densities. Liquid cooling is divided into cold plate liquid cooling and immersion liquid cooling. Cold plate liquid cooling relies on indirect heat exchange through a heat-conducting medium; when the chip's heat flux density is too high, the temperature difference between the cold plate and the chip interface increases, leading to heat dissipation failure. While immersion liquid cooling reduces thermal resistance, it requires restructuring the cabinet's sealing structure, increasing modification costs.

[0049] Meanwhile, the total energy consumption of the computing center has surged. However, the heat dissipation modules, such as cold plates / immersion tanks, are close to the heat source but lack heat recovery capabilities. Heat is transferred to distant locations via coolant, and the thermal energy is diluted during this process, making it difficult to utilize efficiently. Therefore, waste heat recovery in computing centers requires an external recovery system (such as solar-coupled organic Rankine cycle). However, this recovery system is located far from the heat source, requiring long-distance pipelines to transport heat, resulting in a high heat loss rate. Furthermore, it is dependent on the external environment and cannot respond instantly to fluctuations in chip load.

[0050] The heat dissipation module outputs low-quality heat energy (large temperature fluctuations and transfer delays), while traditional heat recovery systems require a stable high-temperature heat source. There is a lack of dynamic coordination between the two modules; that is, when the load suddenly increases, heat dissipation needs take priority, and waste heat is forcibly discharged into the environment; when the load suddenly decreases, the recovery system shuts down due to the interruption of the heat source. Therefore, the physical separation of the heat dissipation module and the waste heat recovery system, along with the fragmented energy transfer path, limits the heat dissipation efficiency of high heat flux density chips, and the recovery system cannot efficiently capture and convert energy away from the heat source.

[0051] In order to solve the above problems, some embodiments of this application provide a liquid cooling system, a liquid cooling cabinet, a control method, a storage medium, a controller, and a computing center system, which deeply couples the high heat flux density heat dissipation process with the waste heat energy conversion process within the limited space inside the cabinet, forming a self-sustaining energy cycle.

[0052] This application provides a computing center system; please refer to [link / reference]. Figure 1 The computing center system 10 provided in this application embodiment includes:

[0053] External heat dissipation device 11;

[0054] The cooling distribution device 12 is connected to the external heat dissipation device 11;

[0055] Multiple liquid-cooled cabinets 13, the inlet end of each liquid-cooled cabinet is connected to the outlet end of the cooling capacity distribution device 12, and the outlet end of each liquid-cooled cabinet 13 is connected to the inlet end of the cooling capacity distribution device 12.

[0056] The liquid-cooled cabinet 13 is used to house high heat flux density electronic components (such as AI computing cards). It absorbs heat through a phase change liquid cooling system and transfers the heat to the refrigerant. At the same time, it integrates an energy storage control system to realize waste heat power generation (expander work) and electrical energy storage (energy storage battery) to participate in grid peak shaving. The specific working principle will be described in detail below.

[0057] The cooling capacity distribution device 12 and the liquid cooling cabinet 13 are both located in the computer room.

[0058] In some embodiments, one end of the cooling distribution device 12 is connected to an external heat dissipation device 11 via a pipeline, and the other end is connected to multiple liquid cooling cabinets 13 via multiple sets of pipelines, with each pipeline corresponding to the inlet and outlet of a liquid cooling cabinet 13.

[0059] External heat dissipation device 11 is used to dissipate the heat of computing center system 10 to the external environment.

[0060] Optionally, the external heat dissipation device 11 can be a cooling tower, a large plate-fin heat exchanger, etc.

[0061] In some embodiments, the cooling capacity distribution device 12 includes a flow distribution component 120 and a heat exchanger 121.

[0062] The flow distribution component 120 has its inlet connected to the secondary side outlet of the heat exchanger 121, and its outlet connected to the pipeline of each of the liquid cooling cabinets 13.

[0063] The heat exchanger 121 is connected on its primary side to the inlet of the external heat dissipation device 11;

[0064] Specifically, the heat exchanger 121 is located inside the cooling distribution device 12, near the inlet of the external heat dissipation equipment 11. The flow distribution assembly 120 is located inside the cooling distribution device 12 and is directly connected to the piping of each liquid cooling cabinet 13.

[0065] The input (inlet) of the flow distribution component 120 is connected to the refrigerant outlet of the heat exchanger 121 to receive the cooled liquid refrigerant.

[0066] Please see Figure 2 In some embodiments, the flow distribution component 120 includes: multiple independent branch channels 1201 branching off from the outlet, a control valve 1202 disposed at the inlet of each branch channel 1201, and a converging channel 1203 disposed at the outlet of the flow distribution component 120.

[0067] Specifically, the output (outlet) of the flow distribution component 120 branches into multiple independent branch channels 1201, and the outlet of each branch channel 1201 is connected to the inlet of a liquid-cooled cabinet 13 through a pipe connector 1310.

[0068] The output (outlet) of the flow distribution component 120 also corresponds to the outlet of the collecting channel 1203 and is connected to the inlet of the heat exchanger 121.

[0069] Each liquid-cooled cabinet 13 is connected to the outlet of the branch channel 1201 of the flow distribution assembly 120 via a pipe connector 1310 to receive low-temperature refrigerant; and is connected to the converging channel 1203 of the flow distribution assembly 120 via a loop pipe to output high-temperature gaseous refrigerant.

[0070] The flow distribution component 120 is used to distribute refrigerant flow to multiple liquid cooling cabinets 13, adjust the liquid supply ratio based on the heat load of each liquid cooling cabinet 13, and summarize the return refrigerant.

[0071] The heat exchanger 121 is used to cool the high-temperature refrigerant returning from the liquid-cooled cabinet 13 into a liquid state and to transfer the heat to the external heat dissipation device 11 for the exhaust of system waste heat.

[0072] Optionally, the heat exchanger 121 is a plate heat exchanger.

[0073] Plate heat exchangers are characterized by their compact size and high heat exchange efficiency.

[0074] In some examples, the refrigerant enters from the input of the flow distribution component 120, passes through the branch channel 1201, and enters the liquid-cooled cabinet 13 connected to the branch channel 1201. Specifically, when the control valve 1202 provided on the branch channel 1201 is open, the refrigerant can enter the liquid-cooled cabinet 13 connected to the branch channel 1201 through the branch channel 1201; when the control valve 1202 provided on the branch channel 1201 is closed, the refrigerant cannot enter the liquid-cooled cabinet 13 connected to the branch channel 1201 through the branch channel 1201.

[0075] Refrigerant flows into the liquid-cooled cabinet 13, absorbing heat from the high heat flux density electronic components through phase change liquid cooling. This heat is then transferred to the refrigerant to generate a high-temperature gaseous refrigerant, which is then output through a loop pipeline to the collecting channel 1203 of the flow distribution assembly 120. The flow distribution assembly 120 then outputs the collected high-temperature gaseous refrigerant to the heat exchanger 121 via the collecting channel 1203.

[0076] The heat exchanger 121 is located on the side near the flow distribution assembly 120. Its inlet receives the high-temperature gaseous refrigerant (from the outlet of the liquid-cooled cabinet 13) collected by the flow distribution assembly 120 through the collecting channel 1203; its outlet outputs cooled liquid refrigerant to the inlet of the flow distribution assembly 120.

[0077] The heat exchanger 121 is located on the side closest to the external heat dissipation device 11. Its inlet is connected to the cooling water output end of the external heat dissipation device 11 (such as a cooling tower water supply pipe), and its outlet returns the cooled water after heat absorption to the external heat dissipation device 11.

[0078] This application provides a liquid-cooled cabinet; please refer to [link / reference]. Figure 3 The liquid-cooled cabinet 13 provided in this application embodiment includes a liquid cooling system 131 and an energy storage control system 132.

[0079] The liquid cooling system 131 is used for heat dissipation of high heat flux density electronic components 133 and for waste heat recovery. The specific working principle will be described below.

[0080] In some embodiments, the liquid cooling system 131 includes: a pipe connector 1310, a drive pump 1311, a bypass valve 1312, an expander 1313, and a direct cooling plate 1314.

[0081] Please see Figure 4 The direct cooling plate 1314 covers the electronic component 133.

[0082] Pipe connector 1310, one end of which is connected to the refrigerant inlet / outlet (branch channel) of the cooling capacity distribution device, is used to realize the entry and exit of refrigerant into and out of the liquid cooling cabinet 13;

[0083] The inlet pipe of the drive pump 1311 and the inlet connection pipe joint 1310 are used to provide refrigerant circulation power.

[0084] The direct cooling plate 1314 is attached to the surface of the electronic component 133, and its inlet is connected to the outlet of the drive pump 1311.

[0085] Specifically, the direct cooling plate 1314 directly contacts the electronic component 133 and rapidly cools the electronic component 133 through phase change heat absorption when the refrigerant flows in.

[0086] The bypass valve 1312 has its inlet connected to the outlet of the direct cooling plate 1314 and has two outlets:

[0087] The first outlet is connected to the generator 1323 via the expander 1313;

[0088] The second outlet is directly connected to the outlet pipe of pipe joint 1310.

[0089] The bypass valve 1312 has a mechanical structure that supports dual-path switching, allowing for flow path switching based on thermal load parameters: it activates the expander 1313 under high load and bypasses it under low load. The specific working principle will be described in detail below.

[0090] Expander 1313 is used to generate electricity by expanding a high-temperature, high-pressure gaseous refrigerant.

[0091] The generator 1323 is connected to the expander 1313 of the liquid cooling system 131 via a mechanical shaft, converting waste heat into electrical energy.

[0092] The energy storage control system 132 is signal-connected to the liquid cooling system 131 and is used for:

[0093] Based on the heat load parameters, the flow path switching of the bypass valve 1312 of the liquid cooling system 131 is controlled.

[0094] The waste heat generated by the liquid cooling system 131 is converted into electrical energy, and the electrical energy is stored and distributed based on the heat load parameters and the state of charge parameters of the energy storage battery.

[0095] The energy storage control system 132 includes: an internal power supply module 1320, a controller 1321, an energy storage battery 1322, and a generator 1323.

[0096] The internal power supply module 1320 has an input terminal connected to the generator 1323, the energy storage battery 1322 and the external power grid 134, and an output terminal that supplies power to the electronic components 133.

[0097] The controller 1321 is connected to the generator 1323, the bypass valve 1312 of the liquid cooling system 131, and the energy storage battery 1322. Based on the heat load parameters, it controls the flow path switching of the bypass valve 1312 of the liquid cooling system 131 to recover waste heat, and stores and distributes electrical energy based on the heat load parameters and the state of charge of the energy storage battery.

[0098] The energy storage battery 1322 receives electrical energy output from the generator 1323 via a connection line, or supplies power in reverse to the internal power supply module 1320.

[0099] In some examples, the expander 1313 in the liquid cooling system 131 is mechanically linked to the generator 1323 to realize the conversion of waste heat into mechanical energy and the conversion of mechanical energy into electrical energy.

[0100] Optionally, the refrigerant may be one of R1336mzz(Z), R1234ze(Z), R1233zd(E), R1224yd(Z) and R245fa.

[0101] In the embodiments of this application, the liquid cooling system 131 employs a refrigerant phase change method to efficiently dissipate heat from high heat flux density electronic components, and utilizes the high-temperature vapor formed by refrigerant vaporization to drive the expander 1313 to perform work, thereby achieving waste heat recovery. When the liquid cooling system 131 is running, the liquid refrigerant enters the direct cooling plate 1314 via the drive pump 1311 and vaporizes. This process allows a large amount of heat to be dissipated through the latent heat, thus meeting the heat dissipation requirements of high heat flux density electronic components. After vaporization, the refrigerant forms vapor, which enters the expander 1313 to perform work, driving the generator 1323 to generate electricity, thereby achieving waste heat recovery and improving system energy efficiency. Furthermore, energy storage batteries are used to "smooth out" load fluctuations in the computing center, achieving stable operation of the liquid cooling system.

[0102] Please see Figure 5 The controller 1321 is connected to each component in the liquid cooling system 131 through a connection circuit, and controls each component of the system according to the status parameters of each component.

[0103] In some embodiments, controller 1321 is configured to:

[0104] When the heat load parameter is less than the minimum drive threshold of the expander 1313, the bypass valve 1312 is controlled to connect the flow path between the second outlet and the outlet pipe of the pipe joint 1310 (i.e., the bypass is opened, short-circuiting the expander 1313); and / or

[0105] When the heat load parameter is greater than or equal to the minimum drive threshold, the bypass valve 1312 is controlled to connect the flow path between the first outlet and the expander 1313 (i.e., the bypass is closed and waste heat recovery is enabled).

[0106] The heat load parameter is determined by the ratio of the output power of the expander 1313 to the power of the drive pump 1311.

[0107] In some embodiments, when the heat load parameter is less than the minimum drive threshold of the expander 1313, the controller 1321 controls the bypass valve 1312 to connect the flow path between the second outlet and the outlet pipe of the pipe joint 1310.

[0108] In some embodiments, when the heat load parameter is greater than or equal to the minimum drive threshold, the controller 1321 controls the bypass valve 1312 to connect the flow path between the first outlet and the expander 1313.

[0109] This disclosure exemplarily describes the operation of the liquid-cooled cabinet 13, as detailed below.

[0110] The refrigerant enters the liquid cooling cabinet 13 through the pipe joint 1310 and is pumped into the direct cooling plate 1314 by the drive pump 1311. In the direct cooling plate 1314, the refrigerant absorbs the heat of the electronic components 133 and vaporizes to form high-temperature refrigerant vapor. The latent heat of vaporization of the refrigerant is used to remove a large amount of heat.

[0111] There are two possible flow directions for the refrigerant after it exits the direct-cooling plate 1314:

[0112] When the heat load parameter is less than the minimum drive threshold of the expander 1313, the refrigerant vaporization amount is less than the minimum drive threshold of the expander, resulting in less hot steam. At this time, the refrigerant steam is less than the minimum drive threshold of the expander to drive the expander 1313 to do work. The controller 1321 controls the bypass valve 1312 to connect the flow path between the second outlet and the outlet pipe of the pipe joint, and closes the branch of the expander 1313. The refrigerant steam flows through the bypass valve 1312 and returns to the external pipe (i.e., the cooling capacity distribution device 12) through the pipe joint 1310.

[0113] When the heat load parameter is greater than or equal to the minimum drive threshold, the amount of vapor generated by the refrigerant vaporization is sufficient to drive the expander 1313 to do work. The controller 1321 controls the bypass valve 1312 to connect the flow path between the first outlet and the expander 1313. The high-temperature refrigerant drives the expander 1313 to do work, which in turn drives the generator 1323 to generate electricity.

[0114] In some embodiments, the controller 1321 is further configured to control the power supply of the drive pump 1311 to switch between power supply from the generator 1323, power supply from the energy storage battery 1322, or power supply from the external power grid 134, based on the state of charge parameters and thermal load parameters of the energy storage battery 1322.

[0115] In some embodiments, when the state of charge parameter is less than or equal to a first preset threshold, the controller 1321 is further configured to control the power supply of the drive pump 1311 to be switched to external power grid 134.

[0116] In some embodiments, when the state of charge parameter is greater than or equal to a second preset threshold, the controller 1321 is further configured to control the power supply of the drive pump 1311 to switch to power supply of the energy storage battery 1322.

[0117] Wherein, the first preset threshold is less than the second preset threshold.

[0118] For example, the first preset threshold is 30%, and the second preset threshold is 90%.

[0119] It should be noted that since the power supply decision depends on the chip power consumption and battery status, the thermal load parameter is not associated when the state of charge parameter is less than or equal to the first preset threshold, or when the state of charge parameter is greater than or equal to the second preset threshold.

[0120] For example, when SOC = 15% (<30%), even if the heat load parameter is a load, the drive pump 1311 is still powered by the external power grid 134 to prioritize the safety of the system power supply.

[0121] In some embodiments, when the state of charge parameter is less than the second preset threshold or greater than the third preset threshold, the controller 1321 is further configured to control the power supply of the drive pump 1311 to switch between the power supply of the generator 1323, the power supply of the energy storage battery 1322, or the power supply of the external power grid 134 based on the state of charge parameter of the energy storage battery.

[0122] In some embodiments, when the heat load parameter is less than the minimum drive threshold of the expander 1313, the controller 1321 is further configured to:

[0123] Control the bypass valve 1312 to connect the flow path between the second outlet and the outlet pipe;

[0124] The power supply to the drive pump 1311 is switched to the energy storage battery 1322.

[0125] Wherein, the third preset threshold is greater than the first preset threshold and less than the second preset threshold.

[0126] For example, the third preset threshold is 70%.

[0127] In some embodiments, the controller 1321 is further configured to control the operating mode of the energy storage battery 1322 to switch between charging, discharging, or quiescent states based on the state of charge parameters and thermal load parameters of the energy storage battery 1322.

[0128] In some embodiments, when the state of charge parameter is less than the second preset threshold, greater than the third preset threshold, and the thermal load parameter is less than the minimum drive threshold of the expander 1313, the controller 1321 is further configured to control the operating mode of the energy storage battery 1322 to be a silent state.

[0129] Therefore, when the state of charge parameter is less than the second preset threshold, greater than the third preset threshold, and the thermal load parameter is less than the minimum drive threshold of the expander 1313, that is, when the system computing power demand is low (such as at night), the bypass refrigerant reduces mechanical losses, and the energy storage battery 1322 maintains the basic cycle to avoid grid energy consumption.

[0130] In some embodiments, when the state of charge parameter is less than a first preset threshold, the controller 1321 is further configured to control the power supply of the drive pump 1311 to switch between the power supply of the generator 1323, the power supply of the energy storage battery 1322, or the power supply of the external power grid 134 based on the thermal load parameter.

[0131] In some embodiments, when the heat load parameter is greater than a dynamic threshold, the controller 1321 is further configured to:

[0132] Control the bypass valve 1312 to connect the flow path between the first outlet and the expander 1313;

[0133] The power supply to the drive pump 1311 is switched to the power supply to the generator 1323.

[0134] In some embodiments, the controller 1321 is further configured to control the operating mode of the energy storage battery 1322 to switch between charging, discharging, or quiescent states based on the state of charge parameters and thermal load parameters of the energy storage battery 1322.

[0135] In some embodiments, when the state of charge parameter is less than a first preset threshold and the thermal load parameter is greater than a dynamic threshold, the controller 1321 is further configured to control the operating mode of the energy storage battery 1322 to be charged using an external power grid 134.

[0136] Therefore, when the state of charge parameter is less than the first preset threshold and the heat load parameter is greater than the dynamic threshold, i.e. under high load, waste heat is used to generate electricity to directly drive pump 1311, while the external power grid 134 replenishes the energy storage battery 1322, so as to realize the cascade utilization of energy.

[0137] In some embodiments, when the state of charge parameter of the energy storage battery 1322 is greater than or equal to the second preset threshold, the controller 1321 is further configured to respond to the grid peak-valley signal and control the operating mode of the energy storage battery 1322 to be in discharge state during the peak period of the grid peak-valley signal.

[0138] In some embodiments, the controller 1321 is further configured to respond to power grid peak-valley signals:

[0139] The energy storage battery 1322 is controlled to operate in a charging state during the off-peak period of the power grid peak-valley signal; and / or

[0140] The energy storage battery 1322 is controlled to operate in a discharge state during the peak period of the power grid peak-valley signal.

[0141] The energy storage control system 132 achieves coordination between the generator 1323 and the energy storage battery 1322 in the following ways: a signal path transmitted according to the control lines of the temperature sensor, controller 1321, and bypass valve 1312; and an energy path from the expander 1313, generator 1323, to the energy distribution to the drive pump 1311 / energy storage battery 1322 / grid.

[0142] For specific control strategies, please refer to the 12 state rules in Table 1.

[0143]

[0144]

[0145] Table 1

[0146] As shown in Table 1, the controller 1321 matches 12 control modes according to the state of charge (SOC) range (5-30%, 30-70%, 70-90%, >90%) of the energy storage battery 1322 and the thermal load parameters (low / medium / high load), and dynamically controls the battery under each control mode.

[0147] a) The on / off state of bypass valve 1312;

[0148] b) Start-up and shutdown of expander 1313;

[0149] c) Power supply selection for drive pump 1311 (external power grid 134 / energy storage battery 1322 / direct supply to expander 1313);

[0150] d) Operating modes of the 1322 energy storage battery (charging / discharging / quiet).

[0151] For example, let P0 be the output power of expander 1313, P1 be the power of driving pump 1311, and C be the adjustable coefficient, which ranges from 1 to 5.

[0152] The classification rules for heat load parameters are as follows:

[0153] Let P0 be the output power of expander 1313, P1 be the power driving pump 1311, and C be the adjustable coefficient, ranging from 1 to 5. The specific load level is as follows:

[0154] Low load: P0 / P1 < 1.05C

[0155] Medium load: 1.05C ≤ P0 / P1 < 1.5C

[0156] High load: 1.5C < P0 / P1

[0157] In some embodiments, when SOC > 90% and the thermal load parameter is medium / high load, controller 1321 controls energy storage battery 1322 to simultaneously perform:

[0158] Charged via expander 1313;

[0159] Discharge 134 to the external power grid to participate in peak shaving.

[0160] When the controller 1321 reads the relevant parameters, it controls the operating status of the bypass valve 1312, expander 1313, drive pump 1311, and energy storage battery 1322 according to the corresponding control logic. Specifically:

[0161] When the SOC of the energy storage battery 1322 is in the range of 5-30%, and it is determined to be a low load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to open, the expander 1313 does not work, the power supply mode of the drive pump 1311 is external power supply, and the energy storage battery 1322 uses the external power grid 134 to charge.

[0162] When the SOC of the energy storage battery 1322 is in the range of 5-30%, and it is determined to be a medium load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to close, the expander 1313 works, the power supply mode of the drive pump 1311 is external power supply, and the energy storage battery 1322 uses the external power grid 134 and the expander 1313 to charge.

[0163] When the SOC of the energy storage battery 1322 is in the range of 5-30%, and it is determined to be under high load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to close, the expander 1313 works, the power supply mode of the drive pump 1311 is to power the expander 1313, and the energy storage battery 1322 is charged using the external power grid 134 and the expander 1313.

[0164] When the SOC of the energy storage battery 1322 is in the range of 30-70%, and it is determined to be a low load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to open, the expander 1313 does not work, the power supply mode of the drive pump 1311 is external power supply, and the energy storage battery 1322 uses the external power grid 134 to charge.

[0165] When the SOC of the energy storage battery 1322 is in the range of 30-70%, and it is determined to be a medium load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to close, the expander 1313 works, the power supply mode of the drive pump 1311 is external power supply, and the energy storage battery 1322 uses the expander 1313 to charge.

[0166] When the SOC of the energy storage battery 1322 is in the range of 30-70%, and it is determined to be under high load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to close, the expander 1313 works, the power supply mode of the drive pump 1311 is to power the expander 1313, and the energy storage battery 1322 uses the expander 1313 to charge.

[0167] When the SOC of the energy storage battery 1322 is in the range of 70-90%, and the heat load parameter determines that it is a low load, the controller 1321 controls the bypass valve 1312 to open, the expander 1313 does not work, the power supply mode of the drive pump 1311 is battery power, and the energy storage battery 1322 only supplies power to the drive pump 1311.

[0168] When the SOC of the energy storage battery 1322 is in the range of 70-90%, and it is determined to be a medium load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to close, the expander 1313 works, the power supply mode of the drive pump 1311 is to power the expander 1313, and the energy storage battery 1322 does not charge or discharge.

[0169] When the SOC of the energy storage battery 1322 is in the range of 70-90%, and it is determined to be under high load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to close, the expander 1313 works, the power supply mode of the drive pump 1311 is to power the expander 1313, and the energy storage battery 1322 uses the expander 1313 to charge.

[0170] When the SOC of the energy storage battery 1322 is in the range of >90%, and the heat load parameter determines that it is a low load, the controller 1321 controls the bypass valve 1312 to open, the expander 1313 does not work, the power supply mode of the drive pump 1311 is battery powered, and the energy storage battery 1322 only supplies power to the drive pump 1311.

[0171] When the SOC of the energy storage battery 1322 is in the range of >90%, and it is determined to be a medium load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to close, the expander 1313 works, the power supply mode of the drive pump 1311 is to power the expander 1313, and the energy storage battery 1322 discharges to the outside.

[0172] When the SOC of the energy storage battery 1322 is in the range of >90%, and it is determined to be a high load according to the heat load parameters, the controller 1321 controls the bypass valve 1312 to close, the expander 1313 to work, the power supply mode of the drive pump 1311 is to power the expander 1313, the energy storage battery 1322 is charged by the expander and discharged to the outside.

[0173] It should be noted that SOC ≤ 5% is used as the extreme low charge protection threshold for energy storage batteries.

[0174] Battery protection: When SOC ≤ 5%, a forced protection mode is triggered to prevent battery damage from over-discharge;

[0175] System power supply: Under extremely low power conditions, priority is given to ensuring basic cooling and cutting off unnecessary loads (such as forced opening of bypass valves and shutdown of expanders).

[0176] In some embodiments, when the state of charge parameter of the energy storage battery is less than or equal to the extreme low charge protection threshold (SOC≤5%), the bypass valve is opened to short-circuit the expander branch, forcibly switching the external power grid to supply power to the drive pump, and controlling the operating mode of the energy storage battery to a silent state (prohibiting charging and discharging).

[0177] In the embodiments of this application, the intelligent switching of the open / closed state of the bypass valve 1312 and the start / stop of the expander 1313 in the liquid-cooled cabinet 13 ensures that the waste heat generated by the electronic components 133 is converted into electrical energy on demand, avoiding energy waste. Based on the state of charge, the power supply of the drive pump 1311 (external power supply, energy storage battery or direct supply from the expander) is dynamically selected, which reduces the dependence on the external power grid 134 while ensuring heat dissipation requirements. Combined with the charging / discharging strategy that matches the state of charge and heat load parameters, the risk of overcharging or undercharging of the energy storage battery 1322 is solved, the battery life is extended, and the battery actively participates in the grid peak shaving when the state of charge allows, realizing an efficient balance between the energy utilization of the computing center and the grid demand. This solves the problem that it is difficult to balance the heat recovery efficiency and power supply stability of the computing center under complex working conditions.

[0178] This application provides a control method for a liquid-cooled cabinet. Please refer to [link / reference]. Figure 6 The control method for the liquid-cooled cabinet provided in this application includes steps 200 to 203. The liquid-cooled cabinet described in the embodiments of this application will be described in detail below.

[0179] Step 200: Monitor the state of charge parameters of the energy storage battery and the thermal load parameters of the system; wherein, the thermal load parameters are determined by the electronic component load of the liquid-cooled cabinet, the electronic component temperature parameters, and the output power of the expander.

[0180] Step 201: Based on the heat load parameters, control the opening and closing of the bypass valve of the liquid cooling system to switch the waste heat recovery path.

[0181] Step 202: Convert the waste heat generated by the liquid cooling system into electrical energy, and store and distribute the electrical energy according to the state of charge parameters and the heat load parameters.

[0182] In some embodiments, controlling the flow path switching of the bypass valve of the liquid cooling system according to the heat load parameters includes:

[0183] When the heat load parameter is greater than or equal to the minimum drive threshold of the expander, the flow path switching of the bypass valve is controlled based on the heat load parameter; and / or

[0184] When the heat load parameter is less than the minimum drive threshold of the expander, the bypass valve is controlled to connect the flow path between the second outlet and the outlet pipe of the pipe joint, and the waste heat recovery is shut off.

[0185] Wherein, if the heat load parameter is less than the minimum drive threshold of the expander, the heat load parameter is less than the minimum drive threshold of the expander; if the heat load parameter is greater than or equal to the minimum drive threshold, the heat load parameter is greater than or equal to the minimum drive threshold of the expander.

[0186] In some embodiments, when the heat load parameter is greater than or equal to the expander minimum drive threshold, the storage and distribution of electrical energy based on the state of charge parameter and the heat load parameter includes:

[0187] The storage and distribution of electrical energy are based on the comparison results between the heat load parameters and the preset dynamic threshold, as well as the state of charge parameters of the energy storage battery.

[0188] Wherein, the minimum driving threshold is less than the dynamic threshold.

[0189] In some embodiments, when the heat load parameter is less than the minimum drive threshold of the expander, controlling the flow path switching of the bypass valve based on the heat load parameter includes:

[0190] Control the bypass valve to connect the flow path between the second outlet and the outlet pipe of the pipe joint, and shut off the waste heat recovery.

[0191] In some embodiments, when the heat load parameter is greater than or equal to the minimum drive threshold of the expander, controlling the flow path switching of the bypass valve based on the heat load parameter includes:

[0192] Control the bypass valve to connect the flow path between the first outlet and the expander, and start waste heat recovery.

[0193] In some embodiments, controlling the power supply source and the operating mode of the energy storage battery based on the state of charge parameters and the thermal load parameters includes:

[0194] Based on the comparison results of the state of charge parameters and the preset threshold, and the heat load parameters, the power supply of the drive pump is controlled to switch between the generator power supply, the energy storage battery power supply or the external power grid power supply, and / or the working mode of the energy storage battery is controlled to switch between charging, discharging or silent state.

[0195] The preset threshold includes at least one of a first preset threshold, a second preset threshold, and a third preset threshold; the first preset threshold is less than the second preset threshold; and the third preset threshold is greater than the first preset threshold and less than the second preset threshold.

[0196] In some embodiments, when the state of charge parameter is less than or equal to the first preset threshold, controlling the power supply of the drive pump to switch between the generator power supply, the energy storage battery power supply, or the external power grid power supply, and / or controlling the operating mode of the energy storage battery to switch between charging, discharging, or silent states, includes:

[0197] The power supply for the drive pump is switched to the external power grid.

[0198] In some embodiments, when the state of charge parameter is greater than or equal to the second preset threshold, controlling the power supply of the drive pump to switch between the generator power supply, the energy storage battery power supply, or the external power grid power supply, and / or controlling the operating mode of the energy storage battery to switch between charging, discharging, or silent states, including:

[0199] The power supply for the drive pump is switched to the energy storage battery.

[0200] In some embodiments, when the state of charge parameter is less than the second preset threshold, greater than the third preset threshold, and the heat load parameter is less than the minimum drive threshold of the expander, the power supply to the drive pump is controlled to switch between the generator power supply, the energy storage battery power supply, or the external power grid power supply, and / or the operating mode of the energy storage battery is controlled to switch between charging, discharging, or quiescent states, including:

[0201] The power supply for the drive pump is switched to the energy storage battery.

[0202] The operating mode of the energy storage battery is controlled to be a silent state.

[0203] In some embodiments, when the state of charge parameter is less than a first preset threshold and the heat load parameter is greater than a dynamic threshold, controlling the power supply of the drive pump to switch between the generator power supply, the energy storage battery power supply, or the external power grid power supply, and / or controlling the operating mode of the energy storage battery to switch between charging, discharging, or silent states, including:

[0204] The power supply for the drive pump is switched to the power supply for the generator;

[0205] The operating mode of the energy storage battery is controlled to be charged using an external power grid.

[0206] In some embodiments, the method further includes:

[0207] If the state of charge parameter of the energy storage battery is less than or equal to the extreme low charge protection threshold, the bypass valve is opened to short-circuit the branch of the expander.

[0208] The external power grid is forcibly switched to supply power to the drive pump, and the operating mode of the energy storage battery is controlled to be silent.

[0209] In some embodiments, the method further includes:

[0210] In response to the peak and valley signals of the power grid, the operating mode of the energy storage battery is controlled to be in discharge state during the peak period of the power grid peak and valley signals.

[0211] In some embodiments, the method further includes:

[0212] During the off-peak hours of the power grid signal, the operating mode of the energy storage battery is controlled to be in charging mode; and / or

[0213] The energy storage battery is controlled to operate in a discharge state during the peak period of the power grid peak-valley signal.

[0214] In the embodiments of this application, a control method for a liquid-cooled cabinet is provided, which is applied to the aforementioned liquid-cooled cabinet. This control method possesses all the beneficial effects of the aforementioned liquid-cooled cabinet, which will not be elaborated upon further herein.

[0215] This application also provides a computer-readable storage medium storing a computer program or instructions that, when executed by a processor, implement the above-described liquid-cooled cabinet control method.

[0216] This application also provides a computer program product, including a computer program or instructions, which, when executed by a processor, implement the above-described liquid-cooled cabinet control method.

[0217] This application also provides a controller that stores a computer program or instructions, which, when executed by a processor, implements the above-described liquid-cooled cabinet control method.

[0218] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0219] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0220] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0221] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0222] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0223] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0224] Computer-readable media include both permanent and non-permanent, removable and non-removable media, which can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient media, such as modulated communication signals and carrier waves.

[0225] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0226] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0227] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0228] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A liquid cooling system, characterized in that, include: Pipe fittings, used to connect to external cooling distribution devices; Direct cooling plate, attached to the surface of electronic components; The drive pump is connected to the direct cooling plate; The expander has its inlet connected to the outlet of the straight cooling plate; A bypass valve is connected in parallel to the expander.

2. The liquid cooling system according to claim 1, characterized in that, The inlet of the drive pump is connected to the inlet pipe of the pipe joint, and the outlet is connected to the inlet of the direct cooling plate.

3. The liquid cooling system according to claim 1, characterized in that, The bypass valve is provided with a first outlet and a second outlet. The first outlet is connected to the outlet pipe of the pipe joint via the expander, and the second outlet is directly connected to the outlet pipe of the pipe joint.

4. The liquid cooling system according to claim 3, characterized in that, The bypass valve is configured to switch the refrigerant flow to the first outlet or the second outlet according to a control signal.

5. A liquid-cooled cabinet, characterized in that, include: The liquid cooling system as described in any one of claims 1 to 4; The generator is connected to the expander of the liquid cooling system via a drive. The energy storage control system, connected to the liquid cooling system via signal, is used for: The opening and closing of the bypass valve of the liquid cooling system is controlled based on the heat load parameters. The waste heat generated by the liquid cooling system is converted into electrical energy, and the electrical energy is stored and distributed according to the heat load parameters and the state of charge parameters of the energy storage battery. The heat load parameters are determined based on the load of the electronic components in the liquid-cooled cabinet, the temperature parameters of the electronic components, and the output power of the expander.

6. The liquid-cooled cabinet according to claim 5, characterized in that, The energy storage control system includes: An energy storage battery is connected to the generator; An internal power supply module has its input end connected to the generator, the energy storage battery and the external power grid, and its output end supplies power to the electronic components. The controller is connected to the internal power supply module, the generator, the liquid cooling system, and the energy storage battery.

7. The liquid-cooled cabinet according to claim 6, characterized in that, The controller is configured to: If the heat load parameter is greater than or equal to the minimum drive threshold of the expander, the bypass valve is closed to open the branch of the expander; and / or When the heat load parameter is less than the minimum drive threshold of the expander, the bypass valve is opened to allow the refrigerant to bypass the branch of the expander; The minimum drive threshold of the expander is determined by the ratio of the rated power of the expander to the rated power of the drive pump.

8. The liquid-cooled cabinet according to claim 6, characterized in that, The controller is also configured to respond to peak and valley signals from the power grid: Controlling the energy storage battery to feed power to the external power grid during the peak periods of the power grid peak-valley signal; and / or During the off-peak period of the power grid peak-valley signal, the energy storage battery is controlled to be charged through the external power grid.

9. A control method for a liquid-cooled cabinet, applied to the liquid-cooled cabinet according to any one of claims 5 to 8, characterized in that, include: Monitor the state of charge parameters of the energy storage battery and the thermal load parameters of the system; wherein, the thermal load parameters are determined by the electronic component load of the liquid-cooled cabinet, the electronic component temperature parameters, and the output power of the expander; Based on the heat load parameters, control the opening and closing of the bypass valve of the liquid cooling system to switch the waste heat recovery path; The waste heat generated by the liquid cooling system is converted into electrical energy, and the electrical energy is stored and distributed according to the state of charge parameters and the heat load parameters.

10. The method according to claim 9, characterized in that, Based on the aforementioned heat load parameters, controlling the opening and closing of the bypass valve of the liquid cooling system to switch the waste heat recovery path includes: If the heat load parameter is greater than or equal to the minimum drive threshold of the expander, the bypass valve is closed to open the branch of the expander, and waste heat recovery is initiated; and / or When the heat load parameter is less than the minimum drive threshold of the expander, the bypass valve is opened to allow the refrigerant to bypass the expander branch, and the waste heat recovery is turned off. The minimum drive threshold of the expander is determined by the ratio of the rated power of the expander to the rated power of the drive pump.

11. The method according to claim 10, characterized in that, When the heat load parameter is less than the minimum drive threshold of the expander, the storage and distribution of electrical energy are performed based on the state of charge parameter and the heat load parameter, including: Based on the comparison result of the state of charge parameters of the energy storage battery with the first preset threshold, the power supply of the drive pump is controlled to switch between generator power supply, energy storage battery power supply or external power grid power supply, and / or the working mode of the energy storage battery is controlled to switch between charging, discharging or silent state.

12. The method according to claim 11, characterized in that, When the state-of-charge parameter of the energy storage battery is less than or equal to the first preset threshold, the power supply for the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent states, including: Forcefully switch the power supply of the drive pump to an external power grid, and / or The operating mode of the energy storage battery is controlled to be charged via the external power grid.

13. The method according to claim 11, characterized in that, When the state-of-charge parameter of the energy storage battery is greater than the first preset threshold, the power supply for the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent states, including: Switching the power supply of the drive pump to the energy storage battery, and / or The operating mode of the energy storage battery is controlled to discharge to the drive pump.

14. The method according to claim 10, characterized in that, When the heat load parameter is greater than or equal to the expander minimum drive threshold, the storage and distribution of electrical energy are performed based on the state of charge parameter and the heat load parameter, including: The storage and distribution of electrical energy are based on the comparison results between the heat load parameters and the preset dynamic threshold, as well as the state of charge parameters of the energy storage battery. Wherein, the minimum driving threshold is less than the dynamic threshold.

15. The method according to claim 14, characterized in that, When the heat load parameter is less than the dynamic threshold, the storage and distribution of electrical energy are performed based on the comparison result between the heat load parameter and the preset dynamic threshold and the state of charge parameter of the energy storage battery, including: Based on the comparison results of the state of charge parameters of the energy storage battery with the preset threshold, the power supply of the drive pump is controlled to switch between generator power supply, energy storage battery power supply or external power grid power supply, and / or the working mode of the energy storage battery is controlled to switch between charging, discharging or silent state. The preset threshold includes at least one of a first preset threshold, a second preset threshold, and a third preset threshold; the third preset threshold is less than the first preset threshold, and the first preset threshold is less than the second preset threshold.

16. The method according to claim 14, characterized in that, When the heat load parameter is less than the dynamic threshold and the state of charge parameter is less than or equal to the third preset threshold, the power supply to the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent states, including: Switch the power supply of the drive pump to an external power grid, and / or The operating mode of the energy storage battery is controlled to be charged by the external power grid and by the excess electrical energy output by the generator driven by the expander.

17. The method according to claim 14, characterized in that, When the heat load parameter is less than the dynamic threshold, the state of charge parameter is greater than the third preset threshold, and less than or equal to the first preset threshold, the power supply to the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent states, including: Switch the power supply of the drive pump to an external power grid, and / or The operating mode of the energy storage battery is controlled to be charged by the electrical energy output by the generator driven by the expander.

18. The method according to claim 14, characterized in that, When the heat load parameter is less than the dynamic threshold, and the state of charge parameter is greater than the first preset threshold and less than or equal to the second preset threshold, the power supply to the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent states, including: Switch the power supply of the drive pump to be directly powered by the generator driven by the expander, and / or The operating mode of the energy storage battery is controlled to be a silent state.

19. The method according to claim 15, characterized in that, When the heat load parameter is less than the dynamic threshold and the state of charge parameter is greater than the second preset threshold, the power supply to the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent state, including: Switch the power supply of the drive pump to be directly powered by the generator driven by the expander, and / or The operating mode of the energy storage battery is controlled to feed surplus electrical energy into the external power grid.

20. The method according to claim 14, characterized in that, When the heat load parameter is greater than or equal to the dynamic threshold, the storage and distribution of electrical energy are performed based on the comparison result between the heat load parameter and the preset dynamic threshold and the state of charge parameters of the energy storage battery, including: Based on the comparison results of the state of charge parameters of the energy storage battery with the preset threshold, the power supply of the drive pump is controlled to switch between generator power supply, energy storage battery power supply or external power grid power supply, and / or the working mode of the energy storage battery is controlled to switch between charging, discharging or silent state. The preset threshold includes at least one of a first preset threshold, a second preset threshold, and a third preset threshold; the third preset threshold is less than the first preset threshold, and the first preset threshold is less than the second preset threshold.

21. The method according to claim 20, characterized in that, When the heat load parameter is greater than or equal to the dynamic threshold and the state of charge parameter is less than or equal to the third preset threshold, the power supply to the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent states, including: Switch the power supply of the drive pump to be directly powered by the generator driven by the expander, and / or The operating mode of the energy storage battery is controlled to be charged by the external power grid and by the excess electrical energy output by the generator driven by the expander.

22. The method according to claim 20, characterized in that, When the heat load parameter is greater than or equal to the dynamic threshold, and the state of charge parameter is greater than the third preset threshold but less than or equal to the first preset threshold, the power supply to the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent states, including: Switch the power supply of the drive pump to be directly powered by the generator driven by the expander, and / or The operating mode of the energy storage battery is controlled to charge the excess electrical energy output by the generator driven by the expander.

23. The method according to claim 20, characterized in that, When the heat load parameter is greater than or equal to the dynamic threshold, and the state of charge parameter is greater than the first preset threshold and less than or equal to the second preset threshold, the power supply to the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent states, including: Switch the power supply of the drive pump to be directly powered by the generator driven by the expander, and / or The operating mode of the energy storage battery is controlled to charge the excess electrical energy output by the generator driven by the expander.

24. The method according to claim 20, characterized in that, When the heat load parameter is greater than or equal to the dynamic threshold and the state of charge parameter is greater than the second preset threshold, the power supply to the drive pump is switched between generator power supply, energy storage battery power supply, or external grid power supply, and / or the operating mode of the energy storage battery is switched between charging, discharging, or silent states, including: Switch the power supply of the drive pump to be directly powered by the generator driven by the expander, and / or The operating mode of the energy storage battery is controlled to charge the battery with surplus electrical energy output by the generator driven by the expander, and to feed the surplus electrical energy into the external power grid to respond to the grid's peak-shaving needs.

25. The method according to claim 9, characterized in that, The method further includes: If the state of charge parameter of the energy storage battery is less than or equal to the extreme low charge protection threshold, the bypass valve is opened to short-circuit the branch of the expander. The external power grid is forcibly switched to supply power to the drive pump, and the operating mode of the energy storage battery is controlled to be silent.

26. The method according to claim 9, characterized in that, The method further includes: In response to peak and valley signals from the power grid, the energy storage battery is controlled to feed power to the external power grid during the peak periods of the power grid peak and valley signals; and / or The energy storage battery is controlled to be charged by the external power grid during the off-peak period of the power grid peak and valley signal.

27. A computer-readable storage medium storing a computer program or instructions, characterized in that, When the computer program or instructions are executed by a processor, they implement the steps of the method according to any one of claims 9 to 26.

28. A computer program product, characterized in that, It includes a computer program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 9 to 26.

29. A controller, wherein a computer program or instructions are stored on the controller, characterized in that, When the computer program or instructions are executed by a processor, they implement the steps of the method according to any one of claims 9 to 26.

30. A computing center system, characterized in that, include: External heat dissipation equipment; A cooling distribution device, connected to the external heat dissipation equipment; A plurality of liquid-cooled cabinets as described in any one of claims 5 to 8, wherein the inlet end of each liquid-cooled cabinet is connected to the outlet end of the cooling capacity distribution device, and the outlet end of each liquid-cooled cabinet is connected to the inlet end of the cooling capacity distribution device.

31. The computing center system according to claim 30, characterized in that, The cooling capacity distribution device includes: Heat exchanger, the external heat dissipation device; The flow distribution component has its inlet connected to the heat exchanger and its outlet connected to the inlet of each of the liquid cooling cabinets.

32. The computing center system according to claim 31, characterized in that, The flow distribution component includes: multiple parallel branch channels, a control valve disposed at the inlet of each branch channel, and a convergence channel disposed at the outlet of the flow distribution component; The outlet of each of the aforementioned branch channels is connected to the coolant inlet pipe of a liquid-cooled cabinet via a pipe joint.

33. The computing center system according to claim 32, characterized in that, The primary inlet of the heat exchanger is connected to the outlet of the collecting channel, and the primary outlet is connected to the inlet of the branch channel. The secondary side of the heat exchanger is connected to the external heat dissipation device.

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