Data center cooling system based on multi-energy complementarity and its energy coordinated scheduling method

Abstract

This invention relates to a data center cooling system based on multi-energy complementarity and its energy coordinated scheduling method, comprising a cooling unit, a power unit, and a control unit. The cooling unit includes a data center cold energy distribution module, a soil cold storage and release module, a cooling supply module, and a cold storage module. The power unit includes a photovoltaic power generation module, a battery module, and an emergency power supply module. This system can operate in three cooling modes, two cold storage modes, three power supply modes, and one battery storage mode. The control unit has multiple preset energy scheduling strategies; it can receive user energy scheduling commands and, based on any energy scheduling strategy selected by the user, control the power unit and cooling unit to execute the corresponding operating mode. This system can prioritize low-energy-consumption operating technologies while maximizing the utilization of surplus solar energy and eliminating the waste of clean energy.

Description

Technical Field

[0001] This invention relates to the field of data center cooling technology, and in particular to a data center cooling system based on multi-energy complementarity and its energy coordinated scheduling method. Background Technology

[0002] With the rapid development of the digital economy and computing infrastructure, the scale of data center construction continues to expand. Data centers operate continuously throughout the year, generating substantial cooling demands, and cooling system energy consumption accounts for a significant portion of total data center energy consumption. Currently, green and efficient cooling has become a core direction for the data center industry. Fully utilizing natural cooling sources is an important way to improve the energy efficiency of cooling systems, while direct green electricity supply is a key means to achieve green cooling operation.

[0003] In computing hub areas where data centers are deployed, climatic conditions vary significantly: winters offer abundant air cooling but relatively weak solar energy, while summers suffer from scarce air cooling but abundant solar energy. A single natural cooling source or green energy form is insufficient to meet the year-round load variations of data centers. Air-based data center cooling systems can achieve low-energy cooling during cold seasons, but suffer from insufficient cooling capacity, reliance on mechanical supplemental cooling, and low system efficiency during hot seasons. While solar photovoltaic power generation offers the advantages of being clean and renewable, its output exhibits significant seasonality and intermittency, making it difficult to stably match the cooling load of data centers. Currently, data centers generally experience a mismatch between cooling and electricity supply and demand across different seasons. Existing single-air cooling or solar power systems have significant technical limitations and cannot simultaneously meet the comprehensive requirements of efficient, low-carbon, and economical operation of data center cooling systems.

[0004] Therefore, those skilled in the art urgently need a data center cooling system that can achieve multi-energy complementarity and has intelligent collaborative scheduling capabilities. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a data center cooling system based on multi-energy complementarity and its energy coordinated scheduling method, aiming to solve the technical problems of mismatch between cooling capacity and power supply and demand in data center operation, and the inability of a single natural cooling source or renewable energy source to simultaneously meet the requirements of efficient, low-carbon and economical operation.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0009] In a first aspect, embodiments of the present invention provide a data center cooling system based on multi-energy complementarity, comprising: a refrigeration unit, a power unit, and a control unit; the refrigeration unit includes a data center cold energy distribution module, a soil cold storage and release module, a cooling supply module, and a cold storage module; the data center cold energy distribution module is disposed within the data center and is used to distribute the cold energy transferred by the cooling supply module and / or the soil cold storage and release module; the cooling supply module can selectively operate in heat pipe mode or vapor compression mode, corresponding to a first cooling supply mode and a second cooling supply mode, respectively, to utilize an air cold source to cool the data center cold energy distribution module; the cold storage module can selectively operate in heat pipe mode or vapor compression mode, corresponding to a first cold storage mode and a second cold storage mode, respectively, to utilize an air cold source to provide cold energy to the soil cold storage and release module; the soil cold storage and release module can selectively operate in heat pipe mode or vapor compression mode, corresponding to a first cold storage mode and a second cold storage mode ... The system operates in either a cooling mode or a cold storage mode. When the soil cold storage and release module operates in the cold release mode, it corresponds to the third cooling mode, utilizing the soil's cold energy to supply cooling to the data center's cold energy distribution module. The soil cold storage and release module can only operate in the cold storage mode when the cold storage module is running, storing the cold energy from the cold storage module in the soil. The power unit provides power to the cooling unit and control unit, including a photovoltaic power generation module, a battery module, and an emergency power supply module, corresponding to the first power supply mode, the second power supply mode, and the third power supply mode, respectively. The battery module can also operate in the energy storage mode. The control unit can control the power unit and cooling unit to execute the corresponding operating modes, so that the data center cooling system can only operate one cooling mode and one power supply mode simultaneously, and can selectively operate the energy storage mode and / or one cold storage mode.

[0010] Optionally, the data center cooling capacity distribution module includes: a third refrigerant pump, and terminal evaporators and terminal evaporator fans installed on the rack cluster; the outlet of the third refrigerant pump is connected to the inlet of the terminal evaporator.

[0011] Optionally, the cooling module includes: a first indirect heat exchanger and a cooling pipeline; the hot-side port of the first heat exchange end of the first indirect heat exchanger is connected to the outlet of the terminal evaporator, and the cold-side port is connected to the inlet of the third refrigerant pump; the hot-side port of the second heat exchange end of the first indirect heat exchanger is connected to the heat inlet port of the cooling pipeline, and the cold-side port is connected to the cooling outlet port of the cooling pipeline; the cooling pipeline includes a first cooling pipeline and a second cooling pipeline connected in parallel; when the first cooling pipeline is opened, the cooling module operates in heat pipe mode, corresponding to the first cooling mode; when the second cooling pipeline is opened, the cooling module operates in vapor compression mode, corresponding to the second cooling mode.

[0012] Optionally, the soil cold storage and release module includes: a second indirect heat exchanger, a buried pipe heat exchanger, and a circulating pump; the outlet of the circulating pump is connected to the inlet of the buried pipe heat exchanger; the hot side port of the first heat exchange end of the second indirect heat exchanger is connected to the outlet of the terminal evaporator, and the cold side port is connected to the inlet of the third refrigerant pump; the inlet of the second heat exchange end of the second indirect heat exchanger is connected to the outlet of the buried pipe heat exchanger, and the outlet is connected to the inlet of the circulating pump.

[0013] Optionally, the cold storage module includes a cold storage pipeline; the hot-side port of the first heat exchange end of the second indirect heat exchanger is connected to the heat-receiving port of the cold storage pipeline, and the cold-side port is connected to the cooling-supply port of the cold storage pipeline; the cold storage pipeline includes a first cold storage pipeline and a second cold storage pipeline arranged in parallel; when the first cold storage pipeline is opened and connected, the cold storage module operates in heat pipe mode, corresponding to the first cold storage mode; when the second cold storage pipeline is opened and connected, the cold storage module operates in vapor compression mode, corresponding to the second cold storage mode.

[0014] Secondly, the present invention provides an energy coordinated scheduling method for the aforementioned data center cooling system based on multi-energy complementarity, wherein the control unit is preset with multiple energy scheduling strategies; the control unit can receive user energy scheduling instructions and control the power unit and the cooling unit to execute corresponding operating modes according to any energy scheduling strategy selected by the user.

[0015] Optionally, the control unit is preset with a cooling temperature threshold. and cold storage temperature threshold And the cold storage temperature threshold Less than the cooling temperature threshold The control unit also has preset first power supply threshold, second power supply threshold, third power supply threshold, fourth power supply threshold, and battery discharge current threshold; wherein:

[0016] The first power supply threshold is used to determine whether the photovoltaic power generation module is in the effective photovoltaic period; when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is greater than the first power supply threshold, it is determined to be a valid photovoltaic period; when the theoretical power generation capacity of the photovoltaic power generation module is greater than the first power supply threshold, it is determined to be a valid photovoltaic period. If the power supply threshold is less than or equal to the first power supply threshold, it is determined to be a photovoltaic ineffective period.

[0017] (1)

[0018] (2)

[0019] (3)

[0020] (4)

[0021] Battery discharge current threshold = (5)

[0022] In equations (1)-(5):

[0023] Outdoor ambient air temperature, K;

[0024] The cooling temperature threshold, K;

[0025] K represents the cold storage temperature threshold.

[0026] The theoretical power consumption for the first cooling mode is kW;

[0027] The theoretical power consumption for the second cooling mode is kW;

[0028] The theoretical power consumption for the first cold storage mode is kW;

[0029] The theoretical power consumption of the second cold storage mode is kW;

[0030] The maximum allowable charging power of the battery module in energy storage mode, in kW;

[0031] The minimum allowable charging power of the battery module in energy storage mode, in kW;

[0032] The maximum allowable discharge current of the battery module in the second power supply mode is A.

[0033] Optionally, the multiple energy dispatch strategies include a first energy dispatch strategy, which is an energy consumption strategy combining priority cold storage and priority cold release; in the first energy dispatch strategy:

[0034] During periods when photovoltaic power is ineffective, the third cooling mode is activated. When the discharge current of the battery module is less than or equal to the battery discharge current threshold, the second power supply mode is activated; when the discharge current of the battery module is greater than the battery discharge current threshold, the third power supply mode is activated.

[0035] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply threshold is less than the second power supply threshold, the third cooling mode is activated, and the power supply mode selection is the same as the photovoltaic ineffective period.

[0036] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the outdoor ambient air temperature is greater than or equal to the second power supply threshold, the first power supply mode and the cooling module are activated; and when the outdoor ambient air temperature is... Less than or equal to the cooling temperature threshold When the outdoor ambient air temperature is high, the cooling module activates the first cooling mode; when the outdoor ambient air temperature is high... greater than the cooling temperature threshold When this happens, the cooling module activates the second cooling mode;

[0037] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the temperature is greater than or equal to the third power supply threshold, the cold storage module is activated; and when the outdoor ambient air temperature... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold When this happens, the cold storage module activates the second cold storage mode;

[0038] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply exceeds the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is greater than the threshold value, the energy storage mode is activated. When the power supply is greater than the second power supply threshold and less than the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is less than the second power supply threshold, the energy storage mode is activated.

[0039] Optionally, the multiple energy dispatch strategies include a second energy dispatch strategy, which is an energy consumption strategy combining priority energy storage and priority cold release; in the second energy dispatch strategy:

[0040] During periods when photovoltaic power is ineffective, the third cooling mode is activated. When the discharge current of the battery module is less than or equal to the battery discharge current threshold, the second power supply mode is activated; when the discharge current of the battery module is greater than the battery discharge current threshold, the third power supply mode is activated.

[0041] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply threshold is less than the second power supply threshold, the third cooling mode is activated, and the power supply mode selection is the same as the photovoltaic ineffective period.

[0042] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the outdoor ambient air temperature is greater than or equal to the second power supply threshold, the first power supply mode and the cooling module are activated; and when the outdoor ambient air temperature is... Less than or equal to the cooling temperature threshold When the outdoor ambient air temperature is high, the cooling module activates the first cooling mode; when the outdoor ambient air temperature is high... greater than the cooling temperature threshold When this happens, the cooling module activates the second cooling mode;

[0043] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the temperature is greater than or equal to the fourth power supply threshold, the cold storage module is activated; and when the outdoor ambient air temperature... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold When this happens, the cold storage module activates the second cold storage mode;

[0044] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply threshold is greater than or less than the second power supply threshold, the energy storage mode is activated.

[0045] Optionally, the multiple energy dispatch strategies include a third energy dispatch strategy, which is an energy consumption strategy combining priority cold storage and priority electricity release; in the third energy dispatch strategy:

[0046] When the outdoor ambient air temperature Less than or equal to the cooling temperature threshold Regardless of whether it is during the effective or ineffective period of photovoltaic power generation, the first cooling mode will be activated; when the outdoor ambient air temperature... greater than the cooling temperature threshold When the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply is greater than or equal to the second power supply threshold, then the second cooling mode is activated; if the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply is less than the second power supply threshold or during a period of photovoltaic inactivity, the third cooling mode will be activated.

[0047] During periods when photovoltaic power is ineffective, the second power supply mode is activated when the discharge current of the battery module is less than or equal to the battery discharge current threshold; the third power supply mode is activated when the discharge current of the battery module is greater than the battery discharge current threshold.

[0048] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is greater than or equal to the second power supply threshold, the first power supply mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is greater than or equal to the second power supply threshold, the first power supply mode is activated. When the power supply threshold is less than the second power supply threshold, the power supply mode selection is the same as during the photovoltaic ineffective period;

[0049] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the temperature is greater than or equal to the third power supply threshold, the cold storage module is activated; and when the outdoor ambient air temperature... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold When this happens, the cold storage module activates the second cold storage mode;

[0050] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply exceeds the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is greater than the threshold value, the energy storage mode is activated. When the power supply is greater than the second power supply threshold and less than the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is less than the second power supply threshold, the energy storage mode is activated.

[0051] Optionally, the multiple energy dispatch strategies include a fourth energy dispatch strategy, which is an energy consumption strategy combining priority energy storage and priority energy release; in the fourth energy dispatch strategy:

[0052] When the outdoor ambient air temperature Less than or equal to the cooling temperature threshold Regardless of whether it is during the effective or ineffective period of photovoltaic power generation, the first cooling mode will be activated; when the outdoor ambient air temperature... greater than the cooling temperature threshold When the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply is greater than or equal to the second power supply threshold, then the second cooling mode is activated; if the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply is less than the second power supply threshold or during a period of photovoltaic inactivity, the third cooling mode will be activated.

[0053] During periods when photovoltaic power is ineffective, the second power supply mode is activated when the discharge current of the battery module is less than or equal to the battery discharge current threshold; the third power supply mode is activated when the discharge current of the battery module is greater than the battery discharge current threshold.

[0054] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is greater than or equal to the second power supply threshold, the first power supply mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is greater than or equal to the second power supply threshold, the first power supply mode is activated. When the power supply threshold is less than the second power supply threshold, the power supply mode selection is the same as during the photovoltaic ineffective period;

[0055] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply value is greater than or less than the second power supply threshold, the energy storage mode is activated;

[0056] During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the temperature is greater than or equal to the fourth power supply threshold, the cold storage module is activated; and when the outdoor ambient air temperature... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold At that time, the cold storage module activates the second cold storage mode.

[0057] (III) Beneficial Effects

[0058] The beneficial effects of the multi-energy complementary data center cooling system of the present invention are as follows:

[0059] The data center cooling system of this invention includes a refrigeration unit integrating a data center cold energy distribution module, a soil cold storage and release module, a cooling supply module, and a cold storage module, and a power unit integrating a photovoltaic power generation module, a battery module, and an emergency power supply module. The refrigeration unit operates in three cooling modes and two cold storage modes, while the power unit operates in three power supply modes and one energy storage mode. The control unit controls the power unit and refrigeration unit to execute corresponding operating modes, ensuring that the data center cooling system can only operate one cooling mode and one power supply mode simultaneously, selectively operating the energy storage mode and / or one cold storage mode. Furthermore, the third cooling mode cannot operate simultaneously with any cold storage mode. Compared to existing technologies, the data center cooling system of this invention achieves multi-energy complementarity and coordinated scheduling of solar energy, air cooling energy, and soil cold storage, enabling efficient matching of various renewable energy sources with the data center's cooling and electrical loads, achieving a comprehensive effect of efficient, low-carbon, and economical operation of the data center cooling system.

[0060] The beneficial effects of the energy coordinated scheduling method of the present invention applied to a multi-energy complementary data center cooling system are as follows:

[0061] (1) The sufficiency of natural cold source in the area where the data center is located is determined by setting the cooling temperature threshold and the cold storage temperature threshold; (2) The sufficiency of photovoltaic power generation is determined by setting the first power supply threshold, the second power supply threshold, the third power supply threshold and the fourth power supply threshold, and the values ​​of the second power supply threshold, the third power supply threshold and the fourth power supply threshold are associated with the outdoor ambient air temperature and the two temperature thresholds, the cooling mode, the cold storage mode and the energy storage mode, so as to subdivide the judgment of the sufficiency of photovoltaic power generation for different combinations of operating modes of the data center cooling system; (3) By presetting four energy dispatch strategies composed of priority cold storage, priority cold release, priority energy storage and priority energy release, the adaptability of the data center cooling system of the present invention to areas with different levels of solar energy resources and natural cold source resources is enhanced; (4) The control unit can receive the user's energy dispatch instructions, and control the power unit and the cooling unit to execute the corresponding operating mode according to any energy dispatch strategy selected by the user, so that the data center cooling system can maximize the absorption of surplus solar energy and eliminate the waste of clean energy, and prioritize the use of low energy consumption technology path to achieve the comprehensive effect of efficient, low carbon and economical operation. Attached Figure Description

[0062] Figure 1 This is a schematic diagram of the composition of a data center cooling system based on multi-energy complementarity provided in Embodiment 1 of the present invention;

[0063] Figure 2 This is a schematic diagram of the operation of a data center cooling system based on multi-energy complementarity in the first cooling mode, as provided in Embodiment 1 of the present invention.

[0064] Figure 3 This is a schematic diagram of the operation of a data center cooling system based on multi-energy complementarity in the second cooling mode, as provided in Embodiment 1 of the present invention.

[0065] Figure 4 This is a schematic diagram of the operation of a data center cooling system based on multi-energy complementarity in the third cooling mode, as provided in Embodiment 1 of the present invention.

[0066] Figure 5 This is a schematic diagram of the operation of a data center cooling system based on multi-energy complementarity in the first cold storage mode, as provided in Embodiment 1 of the present invention.

[0067] Figure 6 This is a schematic diagram of the operation of a data center cooling system based on multi-energy complementarity in the second cold storage mode, as provided in Embodiment 1 of the present invention.

[0068] Figure 7 This is a schematic diagram of the operation of a data center cooling system based on multi-energy complementarity in the first power supply mode, as provided in Embodiment 1 of the present invention.

[0069] Figure 8 This is a schematic diagram of the operation of a data center cooling system based on multi-energy complementarity in the second power supply mode, as provided in Embodiment 1 of the present invention.

[0070] Figure 9 This is a schematic diagram of the operation of a data center cooling system based on multi-energy complementarity in the third power supply mode, as provided in Embodiment 1 of the present invention.

[0071] Figure 10 This is a schematic diagram of the operation of a data center cooling system based on multi-energy complementarity in energy storage mode, as provided in Embodiment 1 of the present invention.

[0072] [Explanation of Labels in the Attached Image]

[0073] 1: Photovoltaic panel; 2: First controller; 3: First inverter; 4: Battery pack; 5: Second controller; 6: Second inverter; 7: High-voltage power grid; 8: Transformer; 9: Low-voltage distribution cabinet; 10: Data center; 11: Server rack cluster; 12: Terminal evaporator fan; 13: Terminal evaporator; 14: First solenoid valve; 15: Second solenoid valve; 16: First indirect heat exchanger; 17: First gas-liquid separator; 18: First compressor; 19: First oil separator; 20: Third solenoid valve; 21: First electronic expansion valve; 22: First refrigerant pump; 23: First filter; 24: First... 25: Receiver; 26: First condenser; 27: Buried pipe heat exchanger; 28: Second indirect heat exchanger; 29: Circulating pump; 20: Fourth solenoid valve; 31: Fifth solenoid valve; 32: Second gas-liquid separator; 33: Second compressor; 34: Second oil separator; 35: Sixth solenoid valve; 36: Second electronic expansion valve; 37: Second refrigerant pump; 38: Second receiver; 39: Second condenser; 40: Seventh solenoid valve; 41: Eighth solenoid valve; 42: Third refrigerant pump; 43: Ninth solenoid valve; 44: First condenser fan; 45: Second condenser fan. Detailed Implementation

[0074] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0075] Reference Figure 1 Embodiment 1 of this invention proposes a data center cooling system based on multi-energy complementarity, comprising: a cooling unit, a power unit, and a control unit. The cooling unit includes a data center cold energy distribution module, a soil cold storage and release module, a cooling supply module, and a cold storage module.

[0076] The data center cold energy distribution module is installed within the data center 10 and is used to distribute the cold energy transferred by the cooling supply module and / or the soil cold storage and release module.

[0077] The cooling module can selectively operate in heat pipe mode or vapor compression mode, corresponding to the first cooling mode and the second cooling mode, respectively, to utilize air cold source to cool the data center cooling capacity distribution module.

[0078] The cold storage module can selectively operate in heat pipe mode or vapor compression mode, corresponding to the first cold storage mode and the second cold storage mode, respectively, to utilize air cold source to provide cooling capacity for the soil cold storage and release module.

[0079] The soil-based cold storage and release module can selectively operate in either cold release or cold storage mode. When operating in cold release mode, it corresponds to the third cooling mode, utilizing the soil's cooling capacity to supply cooling to the data center's cold energy distribution module. The third cooling mode cannot operate simultaneously with either the first or second cold storage mode. The soil-based cold storage and release module can only operate in cold storage mode when the cold storage module is running, storing the cooling energy from the cold storage module in the soil.

[0080] The power unit provides power to the cooling unit and control unit, and includes a photovoltaic power generation module, a battery module, and an emergency power supply module, corresponding to the first power supply mode, the second power supply mode, and the third power supply mode, respectively. The battery module can also operate in energy storage mode.

[0081] The control unit can control the power unit and the cooling unit to execute the corresponding operating modes, so that the data center cooling system can only operate one cooling mode and one power supply mode at the same time, and can selectively operate the energy storage mode and / or one cold storage mode.

[0082] This embodiment of the data center cooling system based on multi-energy complementarity employs a refrigeration unit integrating a data center cold energy distribution module, a soil cold storage and release module, a cooling supply module, and a cold storage module, as well as a power unit integrating a photovoltaic power generation module, a battery module, and an emergency power supply module. A control unit controls the power unit and refrigeration unit to execute corresponding operating modes. Compared to existing technologies, this embodiment's data center cooling system achieves multi-energy complementarity and coordinated scheduling of solar energy, air cooling energy, and soil cold storage, enabling efficient matching of various renewable energy sources with the data center's cooling and electrical loads, achieving a comprehensive effect of efficient, low-carbon, and economical operation of the data center cooling system.

[0083] Reference Figure 1A data center cooling capacity distribution module is installed within the data center 10 to distribute the cooling capacity transferred by the cooling supply module and / or the soil cold storage and release module, thereby absorbing the heat generated inside the data center 10. The data center cooling capacity distribution module includes a third refrigerant pump 42, and terminal evaporators 13 and terminal evaporator fans 12 installed on the data center rack cluster 11. The outlet of the third refrigerant pump 42 is connected to the inlet of the terminal evaporator 13. The terminal evaporator 13 is connected to the soil cold storage and release module and the cooling supply module respectively through the third refrigerant pump 42, for receiving cooling capacity from either the soil cold storage and release module or the cooling supply module. The terminal evaporator fan 12 blows the cooled air, after passing through the terminal evaporator 13, into the rack cluster 11 to absorb the heat generated by the data center equipment, achieving precise cooling at the rack level or between rows. Furthermore, the terminal evaporator fan 12 can adjust its speed according to the outlet air temperature of the rack cluster 11 or the equipment load to achieve on-demand cooling.

[0084] Reference Figure 1 The cooling module is used to fully utilize air cold sources to cool the data center's cooling capacity distribution module. The cooling module includes a first indirect heat exchanger 16 and cooling piping. The hot-side port of the first heat exchange end of the first indirect heat exchanger 16 is connected to the outlet of the terminal evaporator 13, and the cold-side port is connected to the inlet of the third refrigerant pump 42. The hot-side port of the second heat exchange end of the first indirect heat exchanger 16 is connected to the heat inlet port of the cooling piping, and the cold-side port is connected to the cooling outlet port of the cooling piping. The cooling piping includes a first cooling piping and a second cooling piping connected in parallel. When the first cooling piping is open, the cooling module operates in heat pipe mode, corresponding to the first cooling mode; when the second cooling piping is open, the cooling module operates in vapor compression mode, corresponding to the second cooling mode.

[0085] Reference Figure 2 For example, following the order from the heat inlet port to the cooling outlet port, the first cooling pipeline includes a third solenoid valve 20, a first condenser 25, a first liquid receiver 24, a first filter 23, a first refrigerant pump 22, and a seventh solenoid valve 40 connected in sequence.

[0086] The first cooling mode involves the data center cold energy distribution module and the cooling module in the cooling unit, and the cooling module operates in heat pipe mode. In the first cooling mode, the third solenoid valve 20, the first condenser fan 44, the first refrigerant pump 22 and the seventh solenoid valve 40 in the first cooling pipeline of the cooling module are opened; the third refrigerant pump 42 and the terminal evaporator fan 12 in the data center cold energy distribution module are opened. The closed-loop operation path of the cooling module in heat pipe mode is as follows: the refrigerant first enters the first condenser 25 to absorb air cold energy for cooling, and the cooled refrigerant passes through the first liquid receiver 24 and the first filter 23 for purification and buffering in sequence, and is then transported by the first refrigerant pump 22 to the cold side port of the second heat exchange end (i.e., the evaporation side) of the first indirect heat exchanger 16. After absorbing heat from the first heat exchange end (i.e., the condensation side), the refrigerant is transported back to the first condenser 25.

[0087] Reference Figure 3 As an example, following the order from the heat inlet port to the cooling outlet port, the second cooling pipeline includes, in sequence, a ninth solenoid valve 43, a first gas-liquid separator 17, a first compressor 18, a first oil separator 19, a first condenser 25, a first liquid receiver 24, a first filter 23, and a first electronic expansion valve 21.

[0088] The second cooling mode involves the data center cold energy distribution module and the cooling module in the refrigeration unit, and the cooling module operates in vapor compression mode. In the second cooling mode, the ninth solenoid valve 43, the first compressor 18, the first condenser fan 44, and the first electronic expansion valve 21 in the second cooling pipeline of the cooling module are opened; the third refrigerant pump 42 and the terminal evaporator fan 12 in the data center cold energy distribution module are opened. The closed-loop operation path of the vapor compression mode of the cooling module is as follows: the high-temperature and high-pressure gaseous refrigerant first enters the first condenser 25 for cooling. The cooled refrigerant is then purified and buffered by the first liquid receiver 24 and the first filter 23 in sequence, and then throttled by the first electronic expansion valve 21 and delivered to the cold side port of the second heat exchange end of the first indirect heat exchanger 16. After absorbing heat from the first heat exchange end, the refrigerant is converted into a high-temperature and high-pressure gaseous state by the first gas-liquid separator 17, the first compressor 18, and the first oil separator 19 in sequence, and then delivered to the first condenser 25.

[0089] In both the first and second cooling modes, the closed-loop operation path of the data center cooling capacity distribution module is as follows: the refrigerant enters the first heat exchange end of the first indirect heat exchanger 16 to absorb the cooling energy from the second heat exchange end, and the cooled refrigerant is transported by the third refrigerant pump 42 to the terminal evaporator 13 to absorb the heat of the electronic equipment in the data center. The refrigerant after absorbing heat is then transported back to the hot side port of the first heat exchange end of the first indirect heat exchanger 16.

[0090] The first cooling mode directly utilizes an air source for cooling. In this mode, since both the first compressor 18 and the first electronic expansion valve 21 are closed, the system does not require compression work. It relies solely on the first refrigerant pump 22 to drive the refrigerant to flow in the loop, significantly reducing cooling energy consumption, hence the lower energy consumption level. The second cooling mode is suitable for situations where there is no effective outdoor air source for cooling. It relies on the compressor to perform work to achieve cooling, ensuring a stable and continuous supply of cooling capacity, but with higher energy consumption.

[0091] Reference Figure 1 The soil-based cold storage and release module is used for heat exchange between the refrigerant and the soil. The module includes a second indirect heat exchanger 27, a buried pipe heat exchanger 26, and a circulating pump 28. The data center cold capacity distribution module also includes a first solenoid valve 14 and a second solenoid valve 15. The outlet of the circulating pump 28 is connected to the inlet of the buried pipe heat exchanger 26. The hot-side port of the first heat exchange end of the second indirect heat exchanger 27 is connected to the outlet of the terminal evaporator 13 via the first solenoid valve 14, and the cold-side port is connected to the inlet of the third refrigerant pump 42 via the second solenoid valve 15. The inlet of the second heat exchange end of the second indirect heat exchanger 27 is connected to the outlet of the buried pipe heat exchanger 26, and the outlet is connected to the inlet of the circulating pump 28.

[0092] Reference Figure 4 The soil cold storage and release module can operate in the release mode, which corresponds to the third cooling mode, to utilize the soil's cold energy to cool the data center's cold energy distribution module. The third cooling mode involves the data center's cold energy distribution module and the soil cold storage and release module in the cooling unit. In the third cooling mode, the circulation pump 28 in the soil cold storage and release module is turned on; the first solenoid valve 14, the second solenoid valve 15, the third refrigerant pump 42, and the terminal evaporator fan 12 in the data center's cold energy distribution module are turned on. The closed-loop operation path of the soil cold storage and release module is as follows: the refrigerant is transported by the circulation pump 28 to the buried pipe heat exchanger 26 to absorb the soil's cold energy for cooling; the cooled refrigerant is then transported to the second heat exchange end of the second indirect heat exchanger 27 to absorb heat from the first heat exchange end; and the refrigerant, after absorbing heat, is returned to the circulation pump. The closed-loop operation path of the data center cold energy distribution module is as follows: the refrigerant enters the first heat exchange end of the second indirect heat exchanger 27 to absorb the cold energy from the second heat exchange end for cooling. The cooled refrigerant is then transported by the third refrigerant pump 42 to the terminal evaporator 13 to absorb the heat of the electronic equipment in the data center. The refrigerant that has absorbed the heat is then transported back to the hot side port of the first heat exchange end of the second indirect heat exchanger 27.

[0093] The third cooling mode utilizes the air cold source stored in the soil for cooling, and it has the lowest immediate energy consumption among the three cooling modes. However, considering the entire process of storing and then extracting cold air, the overall energy consumption of the third cooling mode falls between that of the first and second cooling modes. That is, ranked by immediate energy consumption: third cooling mode < first cooling mode < second cooling mode; ranked by total energy consumption over the entire cooling cycle: first cooling mode < third cooling mode < second cooling mode.

[0094] Reference Figure 1 The cold storage module is used to provide cooling capacity to the soil cold storage and release module using an air cold source. The cold storage module includes a cold storage pipeline. The hot side port of the first heat exchange end of the second indirect heat exchanger 27 is connected to the heat receiving port of the cold storage pipeline, and the cold side port is connected to the cooling supply port of the cold storage pipeline.

[0095] The cold storage pipeline includes a first cold storage pipeline and a second cold storage pipeline connected in parallel. When the first cold storage pipeline is opened, the cold storage module operates in heat pipe mode, corresponding to the first cold storage mode; when the second cold storage pipeline is opened, the cold storage module operates in vapor compression mode, corresponding to the second cold storage mode.

[0096] Reference Figure 5 As an example, following the order from the heat inlet port to the cooling outlet port, the first cold storage pipeline includes a sixth solenoid valve 34, a second condenser 39, a second liquid receiver 38, a second filter 37, a second refrigerant pump 36, an eighth solenoid valve 41, and a fourth solenoid valve 29 connected in sequence.

[0097] The first cold storage mode involves the soil cold storage and release module and the cold storage module in the refrigeration unit, and the cold storage module operates in heat pipe mode. In the first cold storage mode, the sixth solenoid valve 34, the second condenser fan 45, the second refrigerant pump 36, the eighth solenoid valve 41, and the fourth solenoid valve 29 in the first cold storage pipeline of the cold storage module are opened; the circulation pump 28 in the soil cold storage and release module is opened. The closed-loop operation path of the heat pipe mode of the cold storage module is as follows: the refrigerant first enters the second condenser 39 to exchange heat with the air and absorb the air's cold energy for cooling. The cooled refrigerant passes through the second liquid receiver 38 and the second filter 37 for purification and buffering, and is then transported by the second refrigerant pump 36 to the cold side port of the first heat exchange end of the second indirect heat exchanger 27. The refrigerant exchanges heat with the heat transfer agent at the first heat exchange end and transfers the cold energy to the heat transfer agent before being transported back to the second condenser 39.

[0098] Reference Figure 6 As an example, following the order from the heat inlet port to the cooling outlet port, the second cold storage pipeline includes, in sequence, a fifth solenoid valve 30, a second gas-liquid separator 31, a second compressor 32, a second oil separator 33, a second condenser 39, a second liquid receiver 38, a second filter 37, a second electronic expansion valve 35, and a fourth solenoid valve 29.

[0099] The second cold storage mode involves the soil cold storage and release module and the cold storage module in the refrigeration unit, and the cold storage module operates in vapor compression mode. In the second cold storage mode, the fifth solenoid valve 30, the second compressor 32, the second condenser fan 45, the second electronic expansion valve 35, and the fourth solenoid valve 29 in the second cold storage pipeline of the cold storage module are opened; the circulation pump 28 in the soil cold storage and release module is opened. The closed-loop operation path of the vapor compression mode of the cold storage module is as follows: the high-temperature and high-pressure gaseous refrigerant first enters the second condenser 39 for cooling. The cooled refrigerant is then purified and buffered by the second liquid receiver 38 and the second filter 37 in sequence, and then throttled by the second electronic expansion valve 35 before being sent to the cold side port of the first heat exchange end of the second indirect heat exchanger 27. The refrigerant exchanges heat with the heat transfer agent at the first heat exchange end and transfers the cooling capacity to the heat transfer agent. Then, it is converted into a high-temperature and high-pressure gaseous state by the second gas-liquid separator 31, the second compressor 32, and the second oil separator 33 in sequence, and then sent back to the second condenser 39.

[0100] In both the first and second cold storage modes, the closed-loop operation path of the soil cold storage and release module is as follows: the refrigerant is transported by the circulation pump 28 to the buried pipe heat exchanger 26 to be heated by the soil, the refrigerant releases cold energy to achieve soil cold storage, the heated refrigerant is transported to the second heat exchange end of the second indirect heat exchanger 27 to absorb the cold energy from the first heat exchange end for cooling, and the cooled refrigerant is transported back to the circulation pump 28.

[0101] The first cold storage mode directly utilizes the air cold source for cold storage operations. In this mode, since both the second compressor 32 and the second electronic expansion valve 35 are closed, the system does not need to consume compression work. It only relies on the second refrigerant pump 36 to drive the refrigerant to flow in the loop, significantly reducing cold storage energy consumption, hence the energy consumption level is low. The second cold storage mode is suitable for operating conditions where there is no effective outdoor air cold source. It relies on the compressor to perform work to achieve cold storage, which can stably ensure a continuous supply of cooling capacity, but its energy consumption is higher.

[0102] It should be noted that the soil-based cold storage and release module can only operate in cold storage mode when the cold storage module is running, storing the cold energy from the cold storage module in the soil. The soil-based cold storage and release module can selectively operate in either cold release or cold storage mode; the two modes cannot operate simultaneously. Therefore, the third cooling mode cannot operate concurrently with either the first or second cold storage mode. For a data center cooling system, only one of the three cooling modes can be operated at any given time.

[0103] Reference Figure 1 The power unit is used to provide power to the cooling unit and control unit, and includes a photovoltaic power generation module, a battery module and an emergency power supply module.

[0104] The photovoltaic power generation module includes a photovoltaic panel 1, a first controller 2, and a first inverter 3, which uses solar energy for power generation and supply, corresponding to the first power supply mode.

[0105] The battery module includes a battery pack 4, a second controller 5, and a second inverter 6, used to store electrical energy from the photovoltaic power generation module and provide stable power supply. When the battery module is in discharge mode, it corresponds to the second power supply mode; when it is in charging mode, it corresponds to the energy storage mode. In charging mode, charging can be completed as long as there is sufficient electrical input. The maximum operating energy consumption of the battery module in energy storage mode is directly related to the rated capacity of the battery pack 4. The battery pack 4 is equipped with a BMS (Battery Management System) to monitor key parameters such as voltage, current, and temperature in real time, preventing dangerous conditions such as overcharging, over-discharging, overcurrent, and overtemperature, improving the safety, lifespan, and usable capacity of the battery module, and enabling data communication with the control unit in the data center cooling system.

[0106] The emergency power supply module includes a high-voltage power grid 7, a transformer 8, and a low-voltage distribution cabinet 9, which are used to ensure emergency power supply for the system under abnormal operating conditions, corresponding to the third power supply mode.

[0107] like Figures 7 to 10 As shown, the power unit can provide three power supply modes and one energy storage mode. For the data center cooling system, only one of the three power supply modes can be operated at a time.

[0108] Figure 7 The first power supply mode is shown. In the first power supply mode, solar energy is converted into DC power by photovoltaic panel 1. After being regulated by the first controller 2, the DC power is converted into AC power by the first inverter 3, which ultimately provides operating power for the cooling unit and control unit.

[0109] Figure 8 The second power supply mode is shown. In this mode, the DC power output from battery pack 4 is regulated by the second controller 5 and then converted into AC power by the second inverter 6. This second power supply mode is suitable for supplying power to the system during periods of insufficient or ineffective photovoltaic power generation, ensuring continuous system operation.

[0110] Figure 9 The third power supply mode is shown. In the third power supply mode, the high-voltage power output from the high-voltage grid 7 is stepped down by the transformer 8 and then distributed and protected by the low-voltage distribution cabinet 9, directly providing emergency operating power to the system and ensuring that the system can still operate stably when neither photovoltaic power generation nor battery storage can meet the demand.

[0111] Figure 10The energy storage mode is shown. In energy storage mode, the electrical energy output by the photovoltaic panel 1 is regulated and charged by the first controller 2, and then sent to the battery pack 4 for storage via the first inverter 3. When the photovoltaic power generation is sufficient and the cooling unit load is low, the excess electrical energy is stored in the battery module, realizing energy time shift and improving the photovoltaic utilization rate.

[0112] As an example, the refrigerant used in the data center's cold energy distribution module, cooling module, and cold storage module can all be R410a. Water can be used as the refrigerant in the buried pipe heat exchanger 26. For actual engineering sites with antifreeze requirements, this refrigerant can be replaced with antifreeze media such as ethylene glycol solution. The buried pipe heat exchanger 26 is made of PE material, with an outer diameter of 32mm, an inner diameter of 26mm, a total length of 6000m, a burial depth of 100m, a drilling spacing of 6m, and is constructed using the original soil backfill method. All indirect heat exchangers can be connected plate heat exchangers, and all filters can be copper filters.

[0113] This embodiment of the multi-energy complementary data center cooling system includes a refrigeration unit integrating a data center cold energy distribution module, a soil cold storage and release module, a cooling supply module, and a cold storage module, and a power unit integrating a photovoltaic power generation module, a battery module, and an emergency power supply module. The refrigeration unit operates in three cooling modes and two cold storage modes, while the power unit operates in three power supply modes and one energy storage mode. The control unit controls the power unit and refrigeration unit to execute their respective operating modes, ensuring that the data center cooling system can only operate in one cooling mode and one power supply mode simultaneously, and can selectively operate in the energy storage mode and / or one cold storage mode. Compared to existing technologies, this embodiment of the data center cooling system achieves multi-energy complementarity and coordinated scheduling of solar energy, air cooling energy, and soil cold storage, enabling efficient matching of various renewable energy sources with the data center's cooling and electrical loads, achieving a comprehensive effect of efficient, low-carbon, and economical operation of the data center cooling system.

[0114] Embodiment 2 of this invention proposes an energy coordinated scheduling method for a data center cooling system based on multi-energy complementarity, as described above. The control unit has multiple preset energy scheduling strategies. The control unit can receive user energy scheduling commands and, according to any energy scheduling strategy selected by the user, control the power unit and cooling unit to execute the corresponding operating mode.

[0115] The control unit has a preset cooling temperature threshold. and cold storage temperature threshold And the cold storage temperature threshold Less than the cooling temperature threshold Cooling temperature threshold and cold storage temperature threshold These are the system's design parameters, typically values ​​selected based on engineering experience when choosing components.

[0116] The control unit also has preset first power supply threshold, second power supply threshold, third power supply threshold, fourth power supply threshold, and battery discharge current threshold. Among them:

[0117] The first power supply threshold is used to determine whether the photovoltaic power generation module is in the effective photovoltaic period; when the theoretical power generation capacity of the photovoltaic power generation module... When the power supply capacity exceeds the first power supply threshold, it is determined to be a valid photovoltaic period; when the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply threshold is less than or equal to the first power supply threshold, it is considered a photovoltaic ineffective period.

[0118] (1)

[0119] (2)

[0120] (3)

[0121] (4)

[0122] Battery discharge current threshold = (5)

[0123] In equations (1)-(5):

[0124] The outdoor ambient air temperature, measured in Kelvin, can be acquired in real time via an air temperature sensor.

[0125] The cooling temperature threshold, K;

[0126] K represents the cold storage temperature threshold.

[0127] The theoretical power consumption for the first cooling mode is kW;

[0128] The theoretical power consumption for the second cooling mode is kW;

[0129] The theoretical power consumption for the first cold storage mode is kW;

[0130] The theoretical power consumption of the second cold storage mode is kW;

[0131] The maximum allowable charging power of the battery module in energy storage mode is provided by the battery manufacturer, in kW;

[0132] The minimum allowable charging power of the battery module in energy storage mode is provided by the battery manufacturer, in kW;

[0133] A represents the maximum permissible discharge current of the battery module in the second power supply mode, provided by the battery manufacturer.

[0134] As an example, the control unit has four preset energy scheduling strategies: the first energy scheduling strategy, the second energy scheduling strategy, the third energy scheduling strategy, and the fourth energy scheduling strategy. The characteristics of these four energy scheduling strategies and the operating mode selection logic will be described in detail below.

[0135] The first energy dispatch strategy is a combination of priority cold storage and priority cold release. In the first energy dispatch strategy:

[0136] (1) During the photovoltaic ineffective period, the third cooling mode is activated. When the discharge current of the battery module is less than or equal to the battery discharge current threshold, the second power supply mode is activated; when the discharge current of the battery module is greater than the battery discharge current threshold, the third power supply mode is activated.

[0137] (2) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the power supply threshold is less than the second power supply threshold, the third cooling mode is activated, and the power supply mode selection is the same as the photovoltaic ineffective period.

[0138] (3) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the outdoor ambient air temperature is greater than or equal to the second power supply threshold, the first power supply mode and the cooling module are activated; and when the outdoor ambient air temperature is... Less than or equal to the cooling temperature threshold When the outdoor ambient air temperature is high, the cooling module activates the first cooling mode; when the outdoor ambient air temperature is high... greater than the cooling temperature threshold When this happens, the cooling module activates the second cooling mode;

[0139] (4) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... The cold storage module is activated when the outdoor ambient air temperature is greater than or equal to the third power supply threshold; and when the outdoor ambient air temperature is... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold When this happens, the cold storage module activates the second cold storage mode;

[0140] (5) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the power supply exceeds the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is greater than the second power supply threshold but less than the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is below the second power supply threshold, the energy storage mode is activated.

[0141] The second energy dispatch strategy is an energy consumption strategy that combines priority energy storage with priority cold release. In the second energy dispatch strategy:

[0142] (1) During the photovoltaic ineffective period, the third cooling mode is activated. When the discharge current of the battery module is less than or equal to the battery discharge current threshold, the second power supply mode is activated; when the discharge current of the battery module is greater than the battery discharge current threshold, the third power supply mode is activated.

[0143] (2) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the power supply threshold is less than the second power supply threshold, the third cooling mode is activated, and the power supply mode selection is the same as the photovoltaic ineffective period.

[0144] (3) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the outdoor ambient air temperature is greater than or equal to the second power supply threshold, the first power supply mode and the cooling module are activated; and when the outdoor ambient air temperature is... Less than or equal to the cooling temperature threshold When the outdoor ambient air temperature is high, the cooling module activates the first cooling mode; when the outdoor ambient air temperature is high... greater than the cooling temperature threshold When this happens, the cooling module activates the second cooling mode;

[0145] (4) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... The cold storage module is activated when the outdoor ambient air temperature is greater than or equal to the fourth power supply threshold; and when the outdoor ambient air temperature is... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold When this happens, the cold storage module activates the second cold storage mode;

[0146] (5) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the power supply threshold is greater than or less than the second power supply threshold, the energy storage mode is activated.

[0147] The third energy dispatch strategy is an energy consumption strategy that combines priority cold storage and priority electricity release. In the third energy dispatch strategy:

[0148] (1) When the outdoor ambient air temperature Less than or equal to the cooling temperature threshold Regardless of whether it is during the effective or ineffective period of photovoltaic power generation, the first cooling mode will be activated; when the outdoor ambient air temperature... greater than the cooling temperature threshold At that time, if the theoretical power generation capacity of the photovoltaic power generation module is If the power supply is greater than or equal to the second power supply threshold, the second cooling mode will be activated; if the theoretical power generation capacity of the photovoltaic power generation module is greater than or equal to the second power supply threshold, the second cooling mode will be activated. When the power supply is below the second power supply threshold or during a period of photovoltaic inactivity, the third cooling mode will be activated.

[0149] (2) During the photovoltaic ineffective period, when the discharge current of the battery module is less than or equal to the battery discharge current threshold, the second power supply mode is activated; when the discharge current of the battery module is greater than the battery discharge current threshold, the third power supply mode is activated.

[0150] (3) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the power output is greater than or equal to the second power supply threshold, the first power supply mode is activated; when the theoretical power output of the photovoltaic power generation module is... When the power supply threshold is less than the second power supply threshold, the power supply mode selection is the same as during the photovoltaic ineffective period;

[0151] (4) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... The cold storage module is activated when the outdoor ambient air temperature is greater than or equal to the third power supply threshold; and when the outdoor ambient air temperature is... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold When this happens, the cold storage module activates the second cold storage mode;

[0152] (5) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the power supply exceeds the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is greater than the threshold value, the energy storage mode is activated. When the power supply is greater than the second power supply threshold but less than the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is below the second power supply threshold, the energy storage mode is activated.

[0153] The fourth energy dispatch strategy is an energy consumption strategy that combines priority energy storage and priority energy release. In the fourth energy dispatch strategy:

[0154] (1) When the outdoor ambient air temperature Less than or equal to the cooling temperature threshold When the outdoor ambient air temperature is high, regardless of whether it is during the effective or ineffective period of photovoltaic power generation, the first cooling mode will be activated; greater than the cooling temperature threshold At that time, if the theoretical power generation capacity of the photovoltaic power generation module is If the power supply is greater than or equal to the second power supply threshold, then the second cooling mode is activated; if the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply is less than the second power supply threshold or during a period of photovoltaic inactivity, the third cooling mode will be activated.

[0155] (2) During the photovoltaic ineffective period, when the discharge current of the battery module is less than or equal to the battery discharge current threshold, the second power supply mode is activated; when the discharge current of the battery module is greater than the battery discharge current threshold, the third power supply mode is activated.

[0156] (3) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the power output is greater than or equal to the second power supply threshold, the first power supply mode is activated; when the theoretical power output of the photovoltaic power generation module is... When the power supply threshold is less than the second power supply threshold, the power supply mode selection is the same as during the photovoltaic ineffective period;

[0157] (4) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... When the power supply value is greater than or less than the second power supply threshold, the energy storage mode is activated.

[0158] (5) During the effective photovoltaic period, when the theoretical power generation of the photovoltaic power generation module is... The cold storage module is activated when the outdoor ambient air temperature is greater than or equal to the fourth power supply threshold; and when the outdoor ambient air temperature is... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold At that time, the cold storage module activates the second cold storage mode.

[0159] This embodiment of the energy collaborative scheduling method for data center cooling systems employs four energy scheduling strategies. The switching process of the operating modes of each energy scheduling strategy reflects the optimal application of low-energy-consumption technology paths; while the full utilization of surplus solar energy and the efficient use of clean energy rely on the operational choices of cold storage versus electricity storage and cold release versus electricity release. Prioritizing cold storage, prioritizing cold release, prioritizing electricity storage, and prioritizing electricity release—each of these four operating logics has its own advantages and disadvantages:

[0160] Prioritizing cold storage can extend the system's cold storage duration, ensure sufficient cold storage capacity, and reduce the system's dependence on natural cold sources to a certain extent; however, it will compress the energy storage duration and place higher demands on solar power generation.

[0161] Prioritized cooling: This can extend the operating time of the third cooling mode, reduce the system's energy consumption and electricity demand during periods when photovoltaic power is ineffective, and reduce dependence on solar energy resources; however, it will significantly increase the amount of cooling released by the system, placing higher demands on the sufficiency of natural cold sources in the region.

[0162] Prioritized energy storage: This can extend the system's energy storage time, ensure sufficient energy storage capacity, and reduce the system's dependence on solar energy resources to a certain extent; however, it will compress the cold storage time and place higher demands on the sufficiency of regional natural cold sources.

[0163] Prioritized power release can shorten the operating time of the third cooling mode and reduce the amount of cooling released, further reducing the system's dependence on natural cold sources; however, it will increase the system's energy consumption during periods of photovoltaic inactivity, require higher system energy storage capacity, and indirectly increase the demand for regional solar energy resources.

[0164] The four energy scheduling strategies in this embodiment are essentially different arrangements of pairwise combinations of priority cold storage, priority energy storage, priority cold release, and priority energy release. No single energy scheduling strategy has an absolute advantage. The energy coordinated scheduling method of this application, by pre-setting four energy scheduling strategies, enables the data center cooling system of this application to adapt to different regional climates. The overall applicability is shown in Table 1 (solar energy abundance is divided into levels 1-4, and natural cold source abundance is divided into levels 1-3, with lower levels representing richer resources):

[0165]

[0166] Compared with existing green cooling systems for data centers, the innovation of the energy coordinated scheduling method in this embodiment lies in: (1) determining the sufficiency of natural cold sources in the area where the data center is located by setting cooling temperature thresholds and cold storage temperature thresholds; (2) setting a first power supply threshold, a second power supply threshold, a third power supply threshold, and a fourth power supply threshold, and associating the values ​​of the second power supply threshold, the third power supply threshold, and the fourth power supply threshold with the relationship between the outdoor ambient air temperature and the two temperature thresholds, the cooling mode, the cold storage mode, and the energy storage mode, thereby realizing the subdivision and judgment of photovoltaic power generation for different combinations of operating modes of the data center cooling system. (3) By pre-setting four energy dispatch strategies consisting of priority cold storage, priority cold release, priority electricity storage and priority electricity release, the adaptability of the data center cooling system of this application to areas with different levels of solar energy resources and natural cold source resources is enhanced; (4) The control unit can receive the user's energy dispatch instructions and control the power unit and cooling unit to execute the corresponding operating mode according to any energy dispatch strategy selected by the user, so that the data center cooling system can maximize the absorption of surplus solar energy and eliminate the waste of clean energy, and prioritize the selection of low-energy consumption technology path to achieve the comprehensive effect of high efficiency, low carbon and economic operation.

[0167] During the execution of various energy dispatch strategies, mode switching will be performed based on temperature and energy consumption. It is necessary to compare the theoretical power consumption of different modes with the theoretical power generation of the photovoltaic power generation modules. The relationship between the two is discussed below. The theoretical power consumption for different modes and the theoretical power generation of photovoltaic modules will be given in the following text. The specific calculation formula is as follows. It should be noted that the following calculation method is only an example, and those skilled in the art can select other appropriate theoretical models and calculation methods according to the actual engineering needs.

[0168] Theoretical power consumption of the first cooling mode :

[0169] (6)

[0170] (7)

[0171] (8)

[0172] In equations (6)-(8), The energy efficiency coefficient for the first cooling mode; , and It is a constant, and its value is calculated based on the established flow heat transfer mathematical model. It is related to the component selection of the first heat exchanger 16 and the first cooling pipeline. Outdoor ambient air temperature, K; The theoretical cooling load for the data center is kW; The power consumption of the rack cluster can be collected in real time by the power sensor installed in the rack cluster 11, in kW; The electrical energy heat dissipation conversion rate is provided by the server equipment manufacturer.

[0173] Theoretical power consumption of the second cooling mode :

[0174] (9)

[0175] (10)

[0176] In equations (9)-(10), The energy efficiency coefficient for the second cooling mode; , and It is a constant, and its value is calculated based on the established flow heat transfer mathematical model. It is related to the component selection of the first heat exchanger 16 and the second cooling pipeline. Outdoor ambient air temperature, K; The theoretical cooling load of the data center is calculated using equation (8), kW.

[0177] The theoretical power consumption of the third cooling mode :

[0178] (11)

[0179] (12)

[0180] In equations (11)-(12), The energy efficiency coefficient for the third cooling mode; , , and It is a constant, and its value is calculated based on the established flow heat transfer mathematical model, which is related to the component selection of the soil cold storage and release module; The outlet temperature of the buried pipe heat exchanger can be acquired in real time using an armored insertion-type pipe temperature sensor, in K. The theoretical cooling load of the data center is calculated using equation (8), kW.

[0181] Theoretical power consumption of the first cooling mode Theoretical power consumption of the second cooling mode Theoretical power consumption of the third cooling mode All based on the theoretical cooling load of the data center The ratio of the coefficient of performance (COP) to the energy efficiency coefficient is calculated. The COP value is obtained by fitting experimental data. More specifically, a mathematical model is established based on the refrigerant flow heat transfer principle to calculate the COP under different independent variable values, and then the COP calculation formula is obtained by fitting the simulation data. The adjustable parameters of the mathematical model include the heat exchanger heat transfer area, the fan air volume and air pressure and power consumption correlation function, the water pump flow rate and head and power consumption correlation function, etc. The relevant basic data are all provided by the equipment manufacturer. The calculation formula obtained by data fitting is used to solve the system COP, which is a mature, universal and feasible conventional technical means in this field. See the following formula (1) in the literature:

[0182] Zhang HZ, Li KS, Han ZW, et al. Study on the suitable temperaturedifference of the buried pipe side based on variable flow rate control in the ground source heat pump system [J]. Applied thermal engineering, 2026, 298:131025.

[0183] The theoretical power consumption of the first cold storage mode :

[0184] (13)

[0185] In equation (13), This is the sum of the rated power consumption of the refrigerant pump, circulation pump, second condenser fan, and multiple solenoid valves in the soil cold storage and release module and the first cold storage pipeline. Its value is only related to the selection of relevant components.

[0186] The theoretical power consumption of the second cold storage mode :

[0187] (14)

[0188] In equation (14), , and It is a constant, and its value is related to the component selection of the second heat exchanger 27 and the second cold storage pipeline; The outlet temperature of the buried pipe heat exchanger, in K; The outdoor ambient air temperature is expressed in Kelvin.

[0189] Theoretical power generation of photovoltaic modules :

[0190] (15)

[0191] In equation (15), G represents the solar radiation intensity, which can be acquired in real time by a thermopile-type solar total radiation sensor. A represents the area of ​​the photovoltaic panel. ; The photovoltaic power generation efficiency is provided by the photovoltaic panel equipment manufacturer.

[0192] In summary, the multi-energy complementary data center cooling system of the present invention includes a refrigeration unit integrating a data center cold energy distribution module, a soil cold storage and release module, a cooling supply module, and a cold storage module, and a power unit integrating a photovoltaic power generation module, a battery module, and an emergency power supply module. The refrigeration unit operates in three cooling modes and two cold storage modes, while the power unit operates in three power supply modes and one energy storage mode. By controlling the power unit and refrigeration unit to execute corresponding operating modes through a control unit, the data center cooling system can only operate one cooling mode and one power supply mode simultaneously, and can selectively operate the energy storage mode and / or one cold storage mode. Furthermore, the third cooling mode cannot operate simultaneously with any cold storage mode. Compared to existing technologies, the data center cooling system of the present invention can achieve multi-energy complementarity and coordinated scheduling of solar energy, air cooling energy, and soil cold storage, enabling efficient matching of various renewable energy sources with the data center's cooling and electrical loads, achieving a comprehensive effect of efficient, low-carbon, and economical operation of the data center cooling system.

[0193] The energy coordination scheduling method of this invention, applied to a multi-energy complementary data center cooling system, presets multiple energy scheduling strategies within the control unit. The control unit receives user energy scheduling commands and, based on any energy scheduling strategy selected by the user, controls the power unit and cooling unit to execute the corresponding operating mode. By setting cooling temperature thresholds, cold storage temperature thresholds, a first power supply threshold, a second power supply threshold, a third power supply threshold, a fourth power supply threshold, and a battery discharge current threshold within the control unit, fine switching between operating modes within each energy scheduling strategy is achieved. This allows the data center cooling system to prioritize low-energy-consumption technology paths while maximizing the utilization of surplus solar energy and eliminating the waste of clean energy.

[0194] Since the systems / devices described in the above embodiments of the present invention are systems / devices used to implement the methods of the above embodiments of the present invention, those skilled in the art can understand the specific structure and modifications of the systems / devices based on the methods described in the above embodiments of the present invention, and therefore will not be repeated here. All systems / devices used in the methods of the above embodiments of the present invention fall within the scope of protection of the present invention.

[0195] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention 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.

[0196] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, as well as combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions.

[0197] It should be noted that in the description of this invention, the word "a" or "an" preceding a component does not exclude the existence of multiple such components. This invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. The use of terms such as first, second, third, etc., is merely for convenience and does not indicate any order. These terms can be understood as part of the component names.

[0198] Furthermore, it should be noted that in the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0199] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning of the basic inventive concept, can make other changes and modifications to these embodiments.

[0200] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from the spirit and scope of the invention.

Claims

1. A data center cooling system based on multi-energy complementarity, characterized in that, include: Refrigeration unit, power unit, and control unit; The cooling unit includes a data center cold energy distribution module, a soil cold storage and release module, a cooling supply module, and a cold storage module; The data center cold energy distribution module is installed in the data center (10) and is used to distribute the cold energy transferred by the cooling module and / or the soil cold storage and release module; The cooling module can selectively operate in heat pipe mode or vapor compression mode, corresponding to the first cooling mode and the second cooling mode respectively, to utilize air cold source to cool the data center cooling capacity distribution module; The cold storage module can selectively operate in heat pipe mode or vapor compression mode, corresponding to the first cold storage mode and the second cold storage mode, respectively, to utilize air cold source to provide cooling capacity for the soil cold storage and release module; The soil cold storage and release module can selectively operate in either cold release mode or cold storage mode. When the soil cold storage and release module operates in cold release mode, it corresponds to the third cooling mode, which uses the cold energy of the soil to supply cooling for the data center cold energy distribution module. The soil cold storage and release module can only operate in cold storage mode when the cold storage module is running, so as to store the cold energy from the cold storage module in the soil. The power unit is used to provide power to the cooling unit and the control unit, and includes a photovoltaic power generation module, a battery module and an emergency power supply module, which correspond to the first power supply mode, the second power supply mode and the third power supply mode, respectively; the battery module can also operate in the energy storage mode; The control unit can control the power unit and the cooling unit to execute the corresponding operating modes, so that the data center cooling system can only operate one cooling mode and one power supply mode at the same time, and can selectively operate the energy storage mode and / or one cold storage mode.

2. The data center cooling system as described in claim 1, characterized in that, The data center cooling capacity distribution module includes: a third refrigerant pump (42), and a terminal evaporator (13) and a terminal evaporator fan (12) installed on the rack cluster (11); the outlet of the third refrigerant pump (42) is connected to the inlet of the terminal evaporator (13).

3. The data center cooling system as described in claim 2, characterized in that, The cooling module includes: a first indirect heat exchanger (16) and cooling pipelines; The hot side port of the first heat exchange end of the first indirect heat exchanger (16) is connected to the outlet of the terminal evaporator (13), and the cold side port is connected to the inlet of the third refrigerant pump (42); the hot side port of the second heat exchange end of the first indirect heat exchanger (16) is connected to the heat inlet port of the cooling pipeline, and the cold side port is connected to the cooling outlet port of the cooling pipeline. The cooling pipeline includes a first cooling pipeline and a second cooling pipeline connected in parallel; when the first cooling pipeline is opened, the cooling module operates in heat pipe mode, corresponding to the first cooling mode; when the second cooling pipeline is opened, the cooling module operates in vapor compression mode, corresponding to the second cooling mode.

4. The data center cooling system as described in claim 2, characterized in that, The soil cold storage and release module includes: a second indirect heat exchanger (27), a buried pipe heat exchanger (26), and a circulating pump (28); the outlet of the circulating pump (28) is connected to the inlet of the buried pipe heat exchanger (26); The hot side port of the first heat exchange end of the second indirect heat exchanger (27) is connected to the outlet of the terminal evaporator (13), and the cold side port is connected to the inlet of the third refrigerant pump (42); the inlet of the second heat exchange end of the second indirect heat exchanger (27) is connected to the outlet of the buried pipe heat exchanger (26), and the outlet is connected to the inlet of the circulating pump (28).

5. The data center cooling system as described in claim 4, characterized in that, The cold storage module includes a cold storage pipeline; the hot side port of the first heat exchange end of the second indirect heat exchanger (27) is connected to the heat receiving port of the cold storage pipeline, and the cold side port is connected to the cooling supply port of the cold storage pipeline. The cold storage pipeline includes a first cold storage pipeline and a second cold storage pipeline connected in parallel; when the first cold storage pipeline is opened and connected, the cold storage module operates in heat pipe mode, corresponding to the first cold storage mode; when the second cold storage pipeline is opened and connected, the cold storage module operates in vapor compression mode, corresponding to the second cold storage mode.

6. An energy coordinated scheduling method applied to a data center cooling system based on multi-energy complementarity as described in any one of claims 1-5, characterized in that, The control unit has multiple preset energy scheduling strategies; the control unit can receive user energy scheduling commands and control the power unit and the cooling unit to execute the corresponding operating mode according to any energy scheduling strategy selected by the user.

7. The energy coordinated scheduling method as described in claim 6, characterized in that, The control unit is preset with a cooling temperature threshold. and cold storage temperature threshold And the cold storage temperature threshold Less than the cooling temperature threshold ; The control unit is further preset with a first power supply threshold, a second power supply threshold, a third power supply threshold, a fourth power supply threshold, and a battery discharge current threshold; wherein: The first power supply threshold is used to determine whether the photovoltaic power generation module is in the effective photovoltaic period; when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is greater than the first power supply threshold, it is determined to be a valid photovoltaic period; when the theoretical power generation capacity of the photovoltaic power generation module is greater than the first power supply threshold, it is determined to be a valid photovoltaic period. If the power supply threshold is less than or equal to the first power supply threshold, it is determined to be a photovoltaic ineffective period. (1) (2) (3) (4) Battery discharge current threshold = (5) In equations (1)-(5): Outdoor ambient air temperature, K; The cooling temperature threshold, K; K represents the cold storage temperature threshold. The theoretical power consumption for the first cooling mode is kW; The theoretical power consumption for the second cooling mode is kW; The theoretical power consumption for the first cold storage mode is kW; The theoretical power consumption of the second cold storage mode is kW; The maximum allowable charging power of the battery module in energy storage mode, in kW; The minimum allowable charging power of the battery module in energy storage mode, in kW; The maximum allowable discharge current of the battery module in the second power supply mode is A.

8. The energy coordinated scheduling method as described in claim 7, characterized in that, The multiple energy dispatch strategies include a first energy dispatch strategy, which is an energy consumption strategy combining priority cold storage and priority cold release; in the first energy dispatch strategy: During periods when photovoltaic power is ineffective, the third cooling mode is activated. When the discharge current of the battery module is less than or equal to the battery discharge current threshold, the second power supply mode is activated; when the discharge current of the battery module is greater than the battery discharge current threshold, the third power supply mode is activated. During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply threshold is less than the second power supply threshold, the third cooling mode is activated, and the power supply mode selection is the same as the photovoltaic ineffective period. During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the outdoor ambient air temperature is greater than or equal to the second power supply threshold, the first power supply mode and the cooling module are activated; and when the outdoor ambient air temperature is... Less than or equal to the cooling temperature threshold When the outdoor ambient air temperature is high, the cooling module activates the first cooling mode; when the outdoor ambient air temperature is high... greater than the cooling temperature threshold When this happens, the cooling module activates the second cooling mode; During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the temperature is greater than or equal to the third power supply threshold, the cold storage module is activated; and when the outdoor ambient air temperature... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold When this happens, the cold storage module activates the second cold storage mode; During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply exceeds the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is greater than the threshold value, the energy storage mode is activated. When the power supply is greater than the second power supply threshold and less than the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is less than the second power supply threshold, the energy storage mode is activated.

9. The energy coordinated scheduling method as described in claim 7, characterized in that, The multiple energy dispatch strategies include a second energy dispatch strategy, which is an energy consumption strategy combining priority energy storage and priority cold release; in the second energy dispatch strategy: During periods when photovoltaic power is ineffective, the third cooling mode is activated. When the discharge current of the battery module is less than or equal to the battery discharge current threshold, the second power supply mode is activated; when the discharge current of the battery module is greater than the battery discharge current threshold, the third power supply mode is activated. During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply threshold is less than the second power supply threshold, the third cooling mode is activated, and the power supply mode selection is the same as the photovoltaic ineffective period. During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the outdoor ambient air temperature is greater than or equal to the second power supply threshold, the first power supply mode and the cooling module are activated; and when the outdoor ambient air temperature is... Less than or equal to the cooling temperature threshold When the outdoor ambient air temperature is high, the cooling module activates the first cooling mode; when the outdoor ambient air temperature is high... greater than the cooling temperature threshold When this happens, the cooling module activates the second cooling mode; During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the temperature is greater than or equal to the fourth power supply threshold, the cold storage module is activated; and when the outdoor ambient air temperature... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold When this happens, the cold storage module activates the second cold storage mode; During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply threshold is greater than or less than the second power supply threshold, the energy storage mode is activated.

10. The energy coordinated scheduling method as described in claim 7, characterized in that, The multiple energy dispatch strategies include a third energy dispatch strategy, which is an energy consumption strategy that combines priority cold storage and priority electricity release; in the third energy dispatch strategy: When the outdoor ambient air temperature Less than or equal to the cooling temperature threshold Regardless of whether it is during the effective or ineffective period of photovoltaic power generation, the first cooling mode will be activated; when the outdoor ambient air temperature... greater than the cooling temperature threshold When the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply is greater than or equal to the second power supply threshold, then the second cooling mode is activated; if the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply is less than the second power supply threshold or during a period of photovoltaic inactivity, the third cooling mode will be activated. During periods when photovoltaic power is ineffective, the second power supply mode is activated when the discharge current of the battery module is less than or equal to the battery discharge current threshold; the third power supply mode is activated when the discharge current of the battery module is greater than the battery discharge current threshold. During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply threshold is greater than or equal to the second power supply threshold, the first power supply mode is activated; When the theoretical power generation capacity of the photovoltaic power generation module When the power supply threshold is less than the second power supply threshold, the power supply mode selection is the same as during the photovoltaic ineffective period; During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the temperature is greater than or equal to the third power supply threshold, the cold storage module is activated; and when the outdoor ambient air temperature... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold When this happens, the cold storage module activates the second cold storage mode; During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply exceeds the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is greater than the threshold value, the energy storage mode is activated. When the power supply is greater than the second power supply threshold and less than the third power supply threshold, the energy storage mode is activated; when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply is less than the second power supply threshold, the energy storage mode is activated.

11. The energy coordinated scheduling method as described in claim 7, characterized in that, The multiple energy dispatch strategies include a fourth energy dispatch strategy, which is an energy consumption strategy combining priority energy storage and priority energy release; in the fourth energy dispatch strategy: When the outdoor ambient air temperature Less than or equal to the cooling temperature threshold Regardless of whether it is during the effective or ineffective period of photovoltaic power generation, the first cooling mode will be activated; when the outdoor ambient air temperature... greater than the cooling temperature threshold When the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply is greater than or equal to the second power supply threshold, then the second cooling mode is activated; if the theoretical power generation capacity of the photovoltaic power generation module is... If the power supply is less than the second power supply threshold or during a period of photovoltaic inactivity, the third cooling mode will be activated. During periods when photovoltaic power is ineffective, the second power supply mode is activated when the discharge current of the battery module is less than or equal to the battery discharge current threshold; the third power supply mode is activated when the discharge current of the battery module is greater than the battery discharge current threshold. During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply threshold is greater than or equal to the second power supply threshold, the first power supply mode is activated; When the theoretical power generation capacity of the photovoltaic power generation module When the power supply threshold is less than the second power supply threshold, the power supply mode selection is the same as during the photovoltaic ineffective period; During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the power supply value is greater than or less than the second power supply threshold, the energy storage mode is activated; During the effective photovoltaic period, when the theoretical power generation capacity of the photovoltaic power generation module is... When the temperature is greater than or equal to the fourth power supply threshold, the cold storage module is activated; and when the outdoor ambient air temperature... Less than or equal to the cold storage temperature threshold When the outdoor ambient air temperature is high, the cold storage module activates the first cold storage mode; greater than the cold storage temperature threshold At that time, the cold storage module activates the second cold storage mode.

Images