A power supply system based on data center energy saving and implementation method thereof
By using the alternating power supply of mains and energy storage modules in the data center, and combining the cooling methods of natural cooling sources and refrigeration systems, the high energy consumption and high cost problems of the power supply and cooling systems in the data center are solved, and an energy-saving and consumption-saving energy-saving and reducing energy supply system is achieved.
Patent Information
- Application Number
- CN202411653472.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-04-04
AI Technical Summary
The current power supply and cooling systems in data centers have problems such as high energy consumption, poor electricity consumption economy and high cost, and an energy supply system that reduces costs and saves energy.
An energy-saving energy supply system based on data center energy saving is adopted, which includes a power supply system and a cooling system. The power supply system switches to each other through the mains power supply module and the energy storage power supply module, and uses low-stopping electricity to meet the whole day power supply; the cooling system uses a combination of natural cold source and refrigeration system to perform natural heat exchange when the external temperature is low, and provides refrigeration and cooling through electrochemical energy storage or cold storage tanks during peak electricity consumption.
Through the coordination of low-level power supply and electrochemical energy storage, we can make full use of low-gross electricity to reduce electricity costs; use the combination of natural cooling sources and refrigeration systems to achieve low-energy consumption and low-cost refrigeration and cooling, reducing the total cost of the data center.
Smart Images
Figure CN119767614A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of data center energy supply system engineering, and in particular to an energy supply system based on data center energy saving and an implementation method thereof. Background Art
[0002] Data centers are important infrastructure for centralized processing and storage of large amounts of data. Integrated smart energy systems are emerging energy systems in recent years, mainly involving energy production technology, energy storage technology, transmission technology, energy service technology, and system control and technology that enable flexible connections between sources, networks, loads, and users. The energy supply system plays a vital role in the normal operation of data centers. The energy supply system includes the power supply system and the cooling system. The total cost of the current energy supply system is relatively high.
[0003] The specific problems with the current power supply and cooling systems in data centers are as follows: (1) High energy consumption. Data centers need to operate every day throughout the year, requiring a constant supply of power and cooling, and a large amount of electricity demand. Grid power supply is usually accompanied by a certain amount of energy loss, especially during the transmission and conversion process, the conversion efficiency may be low. Therefore, it needs to be optimized. (2) Poor electricity economy. The cost of grid power supply will fluctuate with market prices, especially during peak hours, when electricity prices may rise significantly, resulting in poor electricity economy. Therefore, it is necessary to find a low-cost and highly economical energy supply method. (3) High cost. The forced refrigeration equipment used for data center cooling is expensive, and subsequent operation and maintenance also require continuous financial investment, so a lower-cost energy supply method is needed. Summary of the invention
[0004] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide a power supply system based on data center energy saving and an implementation method thereof, which can reduce costs and save energy.
[0005] The present invention is completed by adopting the following technical scheme: an energy supply system based on energy saving of a data center, comprising a data center and an energy supply system for the data center, the energy supply system comprising a power supply system and a cooling system, the power supply system comprising a mains power supply module and an energy storage power supply module, the mains power supply module and the energy storage power supply module are respectively connected to the power supply system of the data center, the cooling system comprises a natural cold source, a heat exchanger, a refrigeration system and a cooling control system, the heat exchange channel inside the heat exchanger is connected to the natural cold source through a heat exchange circulation pipeline, the circulating water channel inside the heat exchanger is connected to the cooling system of the data center through a circulation pipeline system, the refrigeration system is arranged on the circulation pipeline system, the circulation pipeline system comprises a water inlet pipeline system and a water return pipeline system, the water inlet pipeline system is provided with a cold storage tank, the return pipeline system is provided with a water storage tank, and the cooling control system is respectively electrically connected to the heat exchanger, the refrigeration system, and the circulation pipeline system and the control valve on the heat exchange circulation pipeline.
[0006] The effects of the present invention are as follows:
[0007] (1) The power supply system uses a power supply mode that switches between the mains power supply module and the energy storage power supply module. During the off-peak period, the mains power supplies the data center and / or the cooling system, while the mains power supplies the energy storage equipment. During the peak period, the energy storage equipment supplies power to the data center. The low-level power supply and electrochemical energy storage are used in coordination to fully utilize the off-peak electricity to meet the power supply throughout the day and reduce electricity costs.
[0008] (2) In the cooling system, the advantages of natural cold sources are utilized, and a combination of natural cold source cooling and storage and off-peak electricity storage cooling is adopted. Natural heat exchange is performed when the outside temperature is low, and the refrigeration system is cooled by municipal electricity during the off-peak period. During peak periods of electricity consumption, electrochemical energy storage refrigeration or cold tank cooling is performed to achieve low-energy and low-cost cooling in the data center. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural schematic diagram of an energy supply system based on data center energy saving;
[0010] Figure 2 It is a schematic diagram of the overall process of an energy supply system based on energy saving in a data center;
[0011] Figure 3 A schematic diagram of a process flow of natural cooling in an energy supply system based on energy saving in a data center;
[0012] Figure 4 It is a schematic diagram of the process of natural cooling and refrigeration system refrigeration in a power supply system based on data center energy saving;
[0013] Figure 5A schematic diagram of a cooling process of a refrigeration system in an energy supply system based on energy saving in a data center;
[0014] Figure 6 A schematic diagram of a process flow of cooling a cold storage tank in an energy supply system based on energy saving in a data center; Figure 7 A schematic diagram of a flow chart of a power supply system in an energy supply system based on energy saving in a data center;
[0015] Figure 8 A schematic diagram of a flow chart of a data center power supply control system in a power supply system based on data center energy saving;
[0016] Fig. 9 The present invention is a flow chart of a power supply system for a unit in a refrigeration system in an energy supply system based on energy saving in a data center. DETAILED DESCRIPTION
[0017] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.
[0018] Reference Figure 1-9 The present invention provides a power supply system based on energy saving of a data center, including a data center 1 and a power supply system for the data center, wherein the power supply system includes a power supply system and a cooling system.
[0019] Reference Figure 7-8The power supply system includes a mains power supply module and an energy storage power supply module, and the mains power supply module and the energy storage power supply module are respectively connected to the power supply system of the data center. Specifically, the mains power supply module connects the mains power to the mains power input terminal of the data center power supply system through a dual power supply bus 23. The energy storage power supply module includes an electrochemical energy storage device 2, the input terminal of the electrochemical energy storage device 2 is connected to the mains power through a wire, and the output terminal of the electrochemical energy storage device 2 is electrically connected to the energy storage input terminal of the power supply system of the data center 1 through a wire. The data center power supply system has a power control system, and the power control system includes a time controller and a power manager. The mains power input port and the energy storage input port are respectively connected to the power management output terminal, and the time controller is connected to the input terminal of the power manager. The time controller sets a time threshold according to the peak and valley of electricity consumption. When the peak and valley of electricity consumption is a low period, the power manager receives the time threshold information and sends instructions to the mains input terminal, the mains input port is started, and the mains power supply module supplies power to the data center; when the peak and valley of electricity consumption is a peak period, the power manager sends instructions to the mains input terminal and the power storage input terminal respectively, closes the mains input terminal, starts the power storage input terminal, and switches to the energy storage power supply module to supply power to the data center. The low-level mains power supply and electrochemical energy storage are used in coordination to fully utilize the valley electricity to meet the power supply throughout the day and reduce electricity costs.
[0020] Reference Figure 1-Figure 6 The cooling system includes a natural cold source 5, a heat exchanger 4, a refrigeration system 3 and a cooling control system. The heat exchanger 4 is preferably a plate heat exchanger, and the heat exchanger has a heat exchange channel and a circulating water channel inside. The heat exchange channel is connected to the natural cold source through a heat exchange circulation pipeline, and the circulating water channel is connected to the cooling system of the data center through a circulation pipeline system. The circulation pipeline system includes an inlet pipeline system and a return pipeline system. The inlet pipeline system is provided with a cold storage tank 7, and the return pipeline system is provided with a water storage tank 6. The refrigeration system 3 is provided on the circulation pipeline system, and the circulating water circulates in the circulating water channel, the circulation pipeline system, the refrigeration system, the water storage tank, the cold storage tank and the cooling system of the data center in the heat exchanger. The cooling control system is electrically connected to the heat exchanger, the refrigeration system, and the control valves on the circulation pipeline system and the heat exchange circulation pipeline.
[0021] Specifically, the heat exchange circulation pipeline includes a heat exchange water inlet pipe 8 and a heat exchange water outlet pipe 9, the heat exchange water inlet pipe is connected to the inlet end of the heat exchange channel inside the heat exchanger, the heat exchange water outlet pipe is connected to the outlet end of the heat exchange channel inside the heat exchanger, the heat exchange water inlet pipe is provided with a temperature monitoring device and a control valve, the temperature monitoring device and the heat exchange water inlet pipe control valve are electrically connected to the cooling control system. The natural cold source enters the heat exchange channel inside the heat exchanger through the heat exchange water inlet pipe, exchanges heat with the circulating water interval in the circulation channel, and is discharged through the heat exchange water outlet pipe.
[0022] The water inlet pipeline system includes a water inlet main pipe 10, a direct water inlet pipe 11, a refrigeration system water inlet pipe and a cold storage tank water inlet pipe. The outlet end of the circulating water channel in the heat exchanger is connected to the inlet end of the water inlet main pipe. When the heat exchanger provides cooling, the circulating water in the circulating water channel is heat-exchanged by the natural cold source interval, and then provides cooling to the data center cooling system through the water inlet main pipe 10 and the direct water inlet pipe 11. The cold storage tank water inlet pipeline includes a cold storage input pipe 12 and a cold storage output pipe 13. The two ends of the cold storage input pipe 12 are respectively connected to the water inlet main pipe 10 and the water inlet end of the cold storage tank, and the two ends of the cold storage output pipe 13 are respectively connected to the water outlet end of the cold storage tank and the water inlet end of the data center cooling system. When the cold storage tank provides cooling, the excess refrigerated circulating water before cooling enters the cold storage tank through the cold storage input pipe 12 for storage, and the cold storage output pipe 13 is used to provide cooling to the data center cooling system. The refrigeration system water inlet pipeline includes a refrigeration input pipe 14 and a refrigeration output pipe 15. The two ends of the refrigeration input pipe 14 are respectively connected to the water inlet main pipe and the refrigeration system water inlet end, and the refrigeration system water inlet outlet end is respectively connected to the cold storage input pipe 12 and the direct supply water inlet pipeline 11 through the refrigeration output pipe 15. When the refrigeration system is providing cooling, the refrigeration input pipe cools the circulating water in the heat exchanger circulating water channel that has not reached the specified temperature, prepares the refrigerated circulating water that meets the cooling requirements, and then outputs it to the data center cooling system and cold storage tank through the refrigeration output pipe.
[0023] The return water pipeline system includes a return water main 16, a water storage return water pipeline and a refrigeration system return water pipe. One end of the return water main 16 is connected to the inlet end of the circulating water channel in the heat exchanger 4, and the other end of the return water main 16 is connected to the return water end of the data center cooling system 1. When the heat exchanger is cooling, the return water generated by the cooling system directly returns to the circulating water channel of the heat exchanger through the return water main 16. The water storage return water pipeline includes a return water input pipe 17 and a return water output pipe 18. One end of the return water input pipe 17 is connected to the return water end of the water storage tank, and the other end of the return water input pipe 17 is connected to the return water main 16. One end of the return water output pipe 18 is connected to the return water outlet end of the water storage tank, and the other end of the return water output pipe is connected to the return water main 16. When a single cold storage tank is used for cooling, the refrigerated circulating water in the cold storage tank enters the cooling system, and the return water generated by the cooling system is transmitted to the return water input pipe 17 through the return water main pipe 16 and enters the water storage tank 6 for storage. When the refrigeration system or the heat exchanger is used for cooling, the corresponding return water output pipe is opened to discharge the return water into the heat exchanger or the refrigeration system. The return water pipe of the refrigeration system includes a first refrigeration return water pipe 19 and a second refrigeration return water pipe 20. One end of the first refrigeration return water pipe 19 is connected to the return water end of the refrigeration system, and the other end of the first refrigeration return water pipe 19 is connected to the return water end of the return water main pipe or the data center cooling system. The second refrigeration return water pipe 20 connects the return water end of the refrigeration system and the return water end of the water storage tank 6. When the refrigeration system is used for cooling, the return water generated by the data center cooling system is directly introduced into the refrigeration system through the first refrigeration return water pipe 19. When the return water is stored in the water storage tank, the return water in the water storage tank is transmitted to the refrigeration system through the second refrigeration return water pipe 20.
[0024] Control valves are provided at the outlet 21 of the circulating water channel in the heat exchanger, the inlet of the direct water supply pipeline 11, the inlet of the cold storage input pipe 12, the refrigeration input pipe 14, the refrigeration output pipe 15 and the cold storage output pipe 13. Control valves are provided at the inlet 22 of the circulating water channel in the heat exchanger, the return water input pipe 17, the return water output pipe 18, the first refrigeration return water pipe 19 and the second refrigeration return water pipe 20. The cooling control system is wirelessly connected to the control valve to control the opening or closing of the control valve to achieve the switching of the cooling source.
[0025] The refrigeration system 3 includes a No. 1 chiller 31 and a No. 2 chiller 32, wherein the No. 1 chiller 31 is the main refrigeration system and the No. 2 chiller 32 is the standby refrigeration system. One end of the first refrigeration return water pipe 19 of the No. 1 chiller is connected to the first return water end of the No. 1 chiller, and the other end is connected to the return water main pipe. One end of the second refrigeration return water pipe 20 of the No. 1 chiller is connected to the second return water end of the No. 1 chiller, and the other end is connected to the return water end of the corresponding water storage tank. The No. 1 chiller has two water inlet and outlet ends, and the two water inlet and outlet ends are respectively connected to the cold storage input pipe and the direct supply water inlet pipeline through two refrigeration output pipes.
[0026] One end of the first refrigeration return pipe 19 of the No. 2 chiller is connected to the first return end of the No. 2 chiller, and the other end is connected to the other return end of the cooling system of the data center. One end of the second refrigeration return pipe 20 of the No. 2 chiller is connected to the second return end of the chiller, and the other end is connected to the return end of the corresponding water storage tank. The No. 2 chiller has one or two water inlet and outlet ends. When there are two water inlet and outlet ends, two refrigeration output pipes are respectively connected to the cold storage input pipe and the direct supply water inlet pipeline. When there is one water inlet and outlet end, it is connected to the cold storage input pipe through the refrigeration output pipe. According to the water storage capacity of the cold storage tank and the temperature of the circulating water, the cooling control system selects to start one or two chillers. For example, when a single refrigeration system is used for cooling, and the water storage capacity of the cold storage tank is small, when the peak and valley of electricity consumption is at the low valley section, two chillers are started at the same time to increase the water storage capacity of the cold storage tank to prepare for the peak electricity consumption period.
[0027] Reference Fig. 9 The unit power supply system is provided in the No. 1 chiller and the No. 2 chiller. The unit power supply system has an energy storage input terminal, a mains input terminal, a time controller and a power manager. The energy storage input terminal and the mains input terminal are electrically connected to the power manager. The time controller is connected to the power controller input terminal. The mains input terminal is connected to the mains through a wire. The energy storage input terminal is connected to the electrochemical energy storage device through a wire. The power controller controls the start, shut down or switching of the mains input terminal and the energy storage input terminal according to the power supply control system instruction and the threshold value set by the time controller. The corresponding power supply mode is selected through the unit power supply system. The energy storage input terminal is started during the peak power consumption period, and the energy storage power supply module is used. During the off-peak power consumption period, the mains input terminal is started and the power is supplied by the mains.
[0028] The above-mentioned implementation method of the energy supply system based on data center energy saving includes a cooling system control method and a power supply system control method.
[0029] Specifically, the cooling system control method steps are as follows:
[0030] 1) The temperature monitoring device at the inlet of the heat exchange water pipe monitors the temperature of the natural cooling source and transmits the temperature signal to the cooling control system.
[0031] 2)Reference Figure 3 As described above, when the temperature of the natural cold source is ≤13°, natural cooling using a heat exchanger and a natural cold source is used to provide chilled circulating water for the data center cooling system, without the need for power supply from a power supply system, thereby reducing electricity costs.
[0032] Specifically, the cooling control system receives the temperature signal from the temperature monitoring device, and sends a command to the control valve to open the control valves of the heat exchange water inlet pipe 8, the outlet end 21 of the circulating water channel, the inlet end 22 of the circulating water channel, the inlet end of the direct supply water inlet pipeline 11, and the inlet end of the cold storage input pipe 12, and the other valves are closed. The natural cold source enters the heat exchange channel inside the heat exchanger through the heat exchange water inlet pipe, and is then discharged from the heat exchange water outlet pipe 9, cooling the circulating water in the circulating water channel of the heat exchanger to produce refrigerated circulating water not higher than 16°C. The circulating water enters the water inlet pipe system from the outlet end 21 of the circulating water channel through the water inlet pipe 10, and enters the cooling system of the data center through the direct supply water inlet pipe 11. After the circulating water enters the direct supply water inlet pipe 11, the remaining excess water enters the cold storage tank 6 through the cold storage input pipe 12 for cold storage. After the 16°C chilled circulating water passes through the cooling system of the data center, 22°C return water is formed. The return water re-enters the circulating water channel of the heat exchanger through the return water pipe, and then indirectly exchanges heat with the return water in the circulating water channel through the natural cold source in the heat exchange channel to prepare 16°C circulating water again.
[0033] 3)Reference Figure 4 As described above, when the temperature monitoring device monitors that the temperature of the natural cold source is greater than 13°C and less than or equal to 19°C, and the peak and valley period of electricity consumption is in the valley period, the refrigeration system and the heat exchanger work simultaneously to provide chilled circulating water to the cooling system of the data center. The circulating water in the heat exchanger is partially heat exchanged by the natural cold source. Although the required temperature of the cooling system is not reached, the circulating water is initially cooled. The cooled circulating water enters the refrigeration system for cooling, shortening the working time of the refrigeration system and reducing electricity costs and energy consumption.
[0034] Specifically, the cooling control system receives the temperature signal of the temperature monitoring device, and the cooling control system sends a command to the control valve to open the control valves of the heat exchange water inlet pipe 8, the outlet end 21 of the circulating water channel, the inlet end 22 of the circulating water channel, the refrigeration input pipe 14, and the refrigeration output pipe 15. The natural cold source enters the heat exchange channel inside the heat exchanger through the heat exchange water inlet pipe 8, and is then discharged from the heat exchange water outlet pipe 9, cooling the circulating water in the circulating water channel of the heat exchanger to produce 16℃-19℃ normal temperature circulating water. The 16℃-19℃ circulating water enters the refrigeration system through the water inlet main pipe 10 and the refrigeration input pipe 14, and the refrigeration system prepares the refrigerated circulating water. The prepared refrigerated water is transmitted to the direct supply water inlet pipe 11 through the refrigeration output pipe 15 and enters the data center cooling system. The excess refrigerated water is transmitted to the cold storage tank through another refrigeration output pipe, realizing the combination of natural refrigeration and forced refrigeration.
[0035] While the refrigeration system is waiting to prepare the chilled circulating water, the control valve of the cold storage output pipe 13 is opened, and the chilled circulating water stored in the cold storage tank enters the cooling system of the data center through the cold storage output pipe 13. The generated return water is then output from the return water end 24 of the cooling system of the data center, and the return water enters the circulating water channel of the heat exchanger through the return water main pipe. After the refrigeration system is prepared, it is transmitted to the direct supply water inlet pipeline through the refrigeration output pipe and enters the cooling system of the data center. The excess chilled water is transmitted to the cold storage tank through another refrigeration output pipe.
[0036] 4)Reference Figure 6 When the temperature monitoring device monitors that the temperature of the natural cold source is greater than 13°C and less than or equal to 19°C, and the peak and valley periods of electricity consumption are peak periods, the cold storage tank provides chilled circulating water for the data center cooling system to avoid peak periods and reduce electricity costs.
[0037] Specifically, the cooling control system receives the temperature signal of the temperature monitoring device, opens the control valves of the cold storage output pipe 13 and the return water input pipe 17, and the refrigerated circulating water stored in the cold storage tank 6 enters the data center cooling system through the cold storage output pipe, and the return water end of the cooling system enters the water storage tank 6 through the return water input pipe 17. When the peak and valley of the power consumption reaches the underestimated period, the control valve of the return water output pipe will be opened, and the return water in the water storage tank 6 will enter the return water main pipe 16 through the return water output pipe, and then enter the circulating water channel of the heat exchanger through the return water main pipe 16, and restart step 3).
[0038] When the temperature monitoring device monitors that the temperature of the natural cold source is greater than 13°C and less than or equal to 19°C, and the peak and valley periods of electricity consumption are during peak hours, but the return water stored in the cold storage tank is insufficient, the cooling control system sends a command to the refrigeration system power supply system, starts the energy storage input terminal, powers the refrigeration system through the energy storage power supply module, and restarts step 3).
[0039] 5)Reference Figure 5 As described above, when the temperature monitoring device monitors that the temperature of the natural cold source is greater than 19°C and the peak and valley periods of electricity consumption are off-peak periods, the refrigeration system works to provide chilled circulating water for the data center cooling system and stores excess chilled water in a cold storage tank.
[0040] Specifically, the cooling control system receives the temperature signal from the temperature monitoring device, and opens the control valves of the cooling output pipe 15 and the first cooling return pipe 19 and the second cooling return pipe 20. The return water of the cooling system of the data center enters the refrigeration system through the first cooling return pipe 19, and the refrigeration system starts to prepare refrigerated circulating water. During the waiting process of the refrigeration system preparing refrigerated circulating water, the control valve of the cold storage output pipe 13 is opened, and the refrigerated circulating water stored in the cold storage tank 7 enters the cooling system of the data center through the cold storage output pipe 3, and the generated return water is then output from the return water end of the cooling system of the data center. The return water enters the return water end of the refrigeration system through the first refrigeration return pipe 19 or the return water main pipe 16 and the first refrigeration return pipe 20, or the return water is transmitted to the water storage tank through the return water input pipe. After the preparation of the refrigeration circulating water of the refrigeration system is completed, the control valve of the cold storage output pipe is closed, and the refrigerated circulating water enters the cold storage input pipe 2 and the direct supply water inlet pipeline 11 through the two refrigeration output pipes 15, and the refrigerated circulating water enters the cooling system of the data center through the direct supply water inlet pipeline 11, and the excess refrigerated circulating water passes through the cold storage tank 7.
[0041] The refrigeration system can start chiller No. 1 and chiller No. 2 at the same time to improve refrigeration efficiency and increase the storage capacity of chilled circulating water in the cold storage tank.
[0042] 6)Reference Figure 6 As described above, when the temperature monitoring device monitors that the temperature of the natural cold source is greater than 19°C, and the peak and valley periods of electricity consumption are during peak hours, the cold storage tank provides refrigerated circulating water for the data center cooling system to reduce electricity costs.
[0043] Specifically, the cooling control system opens the control valves of the cold storage output pipe 13 and the return water input pipe 17. The refrigerated circulating water stored in the cold storage tank 7 enters the data center cooling system through the cold storage output pipe 13, and the return water of the cooling system enters the water storage tank 6 through the return water input pipe 17. When the peak and valley of electricity consumption re-enters the valley period, the control valve on the second refrigeration return water pipe 20 is opened, and the return water in the cold storage tank 7 enters the refrigeration system through the second refrigeration return water pipe 20, and step 5) is started at the same time.
[0044] When the temperature monitoring device monitors that the temperature of the natural cold source is greater than 19°C, and the peak and valley periods of electricity consumption are during peak hours, but the return water stored in the cold storage tank is insufficient, the cooling control system sends a command to the refrigeration system power supply system, starts the energy storage input terminal, powers the refrigeration system through the energy storage power supply module, and restarts step 5).
[0045] The above-mentioned power supply system control method based on the energy supply system of the data center energy saving comprises the following steps:
[0046] 1) When the power consumption is at a low peak, the mains power supply module is used for power supply.
[0047] The power control system of the data center turns on the mains input terminal, supplies power to the data center through the mains, and charges the energy storage power supply module through the mains. At the same time, the refrigeration system turns on the mains input terminal according to the instructions of the cooling control system (when the temperature of the self-heating cold source reaches the starting refrigeration system working mode), and uses the mains to power the refrigeration system.
[0048] 2) When electricity consumption is at its peak, the energy storage power supply module is used to supply power.
[0049] The power manager of the data center receives the time threshold information and sends instructions to the energy storage input terminal, opens the energy storage input terminal, and supplies power to the data center through the electrochemical energy storage device. At the same time, when the cooling control system receives the monitoring information of the temperature monitoring device, when the temperature of the natural cold source is greater than 19°C and the refrigerated circulating water stored in the cold storage tank is insufficient, the cooling control system sends instructions to the unit power system, and the unit power system judges according to the threshold set by the time controller, opens the energy storage input terminal, and the electrochemical energy storage device supplies power to the refrigeration system, and the refrigeration system starts working.
[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. An energy supply system based on data center energy saving, comprising a data center and an energy supply system for the data center, characterized in that: The energy supply system includes a power supply system and a cooling system. The power supply system includes a mains power supply module and an energy storage power supply module. The mains power supply module and the energy storage power supply module are respectively connected to the power supply system of the data center. The cooling system includes a natural cold source, a heat exchanger, a refrigeration system and a cooling control system. The heat exchange channel inside the heat exchanger is connected to the natural cold source through a heat exchange circulation pipeline. The circulating water channel inside the heat exchanger is connected to the cooling system of the data center through a circulation pipeline system. The refrigeration system is arranged on the circulation pipeline system. The circulation pipeline system includes a water inlet pipeline system and a return water pipeline system. A cold storage tank is arranged on the water inlet pipeline system, and a water storage tank is arranged on the return water pipeline system. The cooling control system is respectively electrically connected to the heat exchanger, the refrigeration system, and the circulation pipeline system and the control valves on the heat exchange circulation pipeline.
2. The energy supply system based on data center energy saving according to claim 1 is characterized in that: The water inlet pipeline system includes a water inlet pipe, a direct water inlet pipe, a refrigeration system water inlet pipe and a cold storage tank water inlet pipe. The outlet end of the circulating water channel in the heat exchanger is connected to the inlet end of the water inlet pipe. The cold storage tank water inlet pipe includes a cold storage input pipe and a cold storage output pipe. The two ends of the cold storage input pipe are respectively connected to the water inlet pipe and the water inlet end of the cold storage tank. The two ends of the cold storage output pipe are respectively connected to the water outlet end of the cold storage tank and the water inlet end of the data center cooling system. The refrigeration system water inlet pipeline includes a refrigeration input pipe and a refrigeration output pipe. The two ends of the refrigeration input pipe are respectively connected to the water inlet pipe and the water inlet end of the refrigeration system. The water inlet and outlet end of the refrigeration system are respectively connected to the cold storage input pipe and the direct water inlet pipe through the refrigeration output pipe. The outlet end of the circulating water channel in the heat exchanger, the inlet end of the direct water inlet pipe, the inlet end of the cold storage input pipe, the refrigeration input pipe, the refrigeration output pipe and the cold storage output pipe are all provided with control valves.
3. A data center energy-saving energy supply system according to claim 1 or 2, characterized in that: The return water pipeline system includes a return water pipe, a water storage return water pipe and a refrigeration system return water pipe. One end of the return water pipe is connected to the inlet end of the circulating water channel in the heat exchanger, and the other end of the return water pipe is connected to the return water end of the data center cooling system. The water storage return water pipe includes a return water input pipe and a return water output pipe. One end of the return water input pipe is connected to the return water end of the water storage tank, and the other end of the return water input pipe is connected to the return water pipe. One end of the return water output pipe is connected to the return water outlet end of the water storage tank, and the other end of the return water output pipe is connected to the return water pipe. The refrigeration system return water pipe includes a first refrigeration return water pipe and a second refrigeration return water pipe. One end of the first refrigeration return water pipe is connected to the return water end of the refrigeration system, and the other end of the first refrigeration return water pipe is connected to the return water pipe or the return water end of the data center cooling system. The second refrigeration return water pipe connects the return water end of the refrigeration system and the return water end of the water storage tank. Control valves are provided on the inlet end of the circulating water channel in the heat exchanger, the return water input pipe, the return water output pipe, the first refrigeration return water pipe and the second refrigeration return water pipe.
4. The energy supply system based on data center energy saving according to claim 3 is characterized by: The AC power supply module connects the AC power to the AC power input terminal of the data center power supply system through dual power supply busbars. The energy storage power supply module includes an electrochemical energy storage device. The input terminal of the electrochemical energy storage device is connected to the AC power through a wire, and the output terminal of the electrochemical energy storage device is electrically connected to the energy storage input terminal of the data center power supply system through a wire.
5. The energy supply system based on data center energy saving according to claim 4 is characterized in that: The data center power supply system has a power control system, which includes a time controller and a power manager. The mains input port and the energy storage input port are respectively connected to the power management output end, and the time controller is connected to the input end of the power manager. The time threshold is set in the time controller according to the peak and valley of power consumption. When the peak and valley of power consumption is a low period, the power manager receives the time threshold information and sends an instruction to the mains input end, the mains input port is started, and the mains power supply module supplies power to the data center. When the peak and valley of power consumption is a peak period, the power manager sends instructions to the mains input end and the energy storage input end respectively, turns off the mains input end, starts the energy storage input end, and switches to the energy storage power supply module to supply power to the data center.
6. A data center energy-saving energy supply system according to claim 1, 2, 4 or 5, characterized in that: The heat exchange circulation pipeline includes a heat exchange water inlet pipe and a heat exchange water outlet pipe. The heat exchange water inlet pipe is connected to the inlet end of the heat exchange channel inside the heat exchanger, and the heat exchange water outlet pipe is connected to the outlet end of the heat exchange channel inside the heat exchanger. The heat exchange water inlet pipe is provided with a temperature monitoring device and a control valve. The temperature monitoring device and the heat exchange water inlet pipe control valve are electrically connected to the cooling control system.
7. The energy supply system based on data center energy saving according to claim 6 is characterized in that: The refrigeration system includes a No. 1 chiller and a No. 2 chiller. One end of the first refrigeration return pipe of the No. 1 chiller is connected to the first return end of the No. 1 chiller, and the other end is connected to the return water main. One end of the first refrigeration return pipe of the No. 2 chiller is connected to the first return end of the No. 2 chiller, and the other end is connected to the other return end of the data center cooling system. The second refrigeration return pipes of the No. 1 chiller and the No. 2 chiller are respectively connected to the return ends of the corresponding water storage tanks. The No. 1 chiller and the No. 2 chiller each have two water inlet and outlet ends, and the two water inlet and outlet ends are respectively connected to the cold storage input pipe and the direct supply water inlet pipeline through two refrigeration output pipes.
8. The energy supply system based on data center energy saving according to claim 7 is characterized in that: The No. 1 chiller and the No. 2 chiller are both provided with a unit power supply system, and the unit power supply system has an energy storage input terminal, a mains input terminal, a time controller and a power manager. The energy storage input terminal and the mains input terminal are electrically connected to the power manager, the time controller is connected to the power controller input terminal, the mains input terminal is connected to the mains through a wire, and the energy storage input terminal is connected to the electrochemical energy storage device through a wire. The power controller controls the start, shutdown or switching of the mains input terminal and the energy storage input terminal according to the power supply control system instructions and the threshold value set by the time controller.
9. An implementation method of a data center energy-saving energy supply system according to claim 1, characterized in that: The invention comprises a cooling system control method, the steps are as follows: 1) The temperature monitoring device at the inlet of the heat exchange water inlet pipe monitors the temperature of the natural cooling source and transmits the temperature signal to the cooling control system; 2) When the temperature of the natural cooling source is ≤13°, natural cooling using a heat exchanger and natural cooling source is used to provide chilled circulating water for the data center cooling system. The cooling control system receives the temperature signal of the temperature monitoring device, and sends a command to the control valve to open the control valves of the heat exchange water inlet pipe, the outlet end of the circulating water channel, the inlet end of the circulating water channel, the inlet end of the direct supply water inlet pipeline and the inlet end of the cold storage input pipe. Other valves are closed, and the natural cold source enters the heat exchange channel inside the heat exchanger through the heat exchange water inlet pipe, and then is discharged from the heat exchange outlet pipe to cool the circulating water in the circulating water channel of the heat exchanger to prepare refrigerated circulating water with a temperature not higher than 16°C. The circulating water enters the water inlet pipeline system through the water inlet pipe, and the circulating water enters the cooling system of the data center through the direct supply water inlet pipe. After the circulating water enters the direct supply water inlet pipe, the remaining excess part enters the cold storage tank through the cold storage input pipe for cold storage. After the 16°C refrigerated circulating water passes through the cooling system of the data center, 22°C return water is formed. The return water re-enters the circulating water channel of the heat exchanger through the return water pipe, and the return water in the circulating water channel is indirectly heat exchanged by the natural cold source in the heat exchange channel to prepare 16°C circulating water again. 3) When the temperature monitoring device detects that the temperature of the natural cooling source is greater than 13°C and less than or equal to 19°C, and the peak and valley of electricity consumption are at a low point, the refrigeration system and the heat exchanger work simultaneously to provide chilled circulating water to the cooling system of the data center. The cooling control system receives the temperature signal of the temperature monitoring device, and sends a command to the control valve to open the control valves of the heat exchange water inlet pipe, the outlet end of the circulating water channel, the inlet end of the circulating water channel, the refrigeration input pipe, and the refrigeration output pipe. The natural cold source enters the heat exchange channel inside the heat exchanger through the heat exchange water inlet pipe, and then is discharged from the heat exchange water outlet pipe, and the circulating water in the circulating water channel of the heat exchanger is cooled to produce 16°C-19°C normal temperature circulating water. The circulating water enters the refrigeration system through the water inlet main pipe and the refrigeration input pipe, and the refrigeration system prepares the refrigerated circulating water. The prepared chilled water is transmitted to the direct supply water inlet pipeline through the refrigeration output pipe and enters the data center cooling system. The excess chilled water is transmitted to the cold storage tank through another refrigeration output pipe. While the refrigeration system is preparing the chilled circulating water, the control valve of the cold storage output pipe is opened, and the chilled circulating water stored in the cold storage tank enters the cooling system of the data center through the cold storage output pipe. The generated return water is then output from the return water end of the cooling system of the data center, and enters the circulating water channel of the heat exchanger through the return water main pipe. After the refrigeration system is prepared, it is transmitted to the direct supply water inlet pipeline through the refrigeration output pipe and enters the cooling system of the data center. The excess chilled water is transmitted to the cold storage tank through another refrigeration output pipe; 4) When the temperature monitoring device detects that the temperature of the natural cold source is greater than 13°C and less than or equal to 19°C, and the peak and valley periods of electricity consumption are at peak times, the cold storage tank provides refrigerated circulating water for the data center cooling system. The cooling control system receives the temperature signal from the temperature monitoring device, opens the control valves of the cold storage output pipe and the return water input pipe, and the refrigerated circulating water stored in the cold storage tank enters the cooling system of the data center through the cold storage output pipe. The return water end of the cooling system allows the return water to enter the water storage tank through the return water input pipe. When the peak and valley of electricity consumption reaches the low-estimation period, the control valve of the return water output pipe is opened, and the return water in the water storage tank enters the return water main pipe through the return water output pipe, and then enters the circulating water channel of the heat exchanger through the return water main pipe, and step 3 is started; 5) When the temperature monitoring device detects that the temperature of the natural cooling source is greater than 19°C and the peak and valley periods of electricity consumption are low, the refrigeration system works to provide refrigerated circulating water for the data center cooling system. The cooling control system receives a temperature signal from a temperature monitoring device, opens control valves of a cooling output pipe and a first cooling return pipe and a second cooling return pipe, and return water of a cooling system of a data center enters the cooling system through the first cooling return pipe, and the cooling system starts to prepare refrigerated circulating water. While the refrigeration system is waiting to prepare refrigerated circulating water, the control valve of the cold storage output pipe is opened, and the stored refrigerated circulating water in the cold storage tank enters the cooling system of the data center through the cold storage output pipe, and the generated return water is then output from the return water end of the cooling system of the data center, and the return water enters the return water end of the refrigeration system through the first refrigeration return pipe or the return water main pipe and the first refrigeration return pipe. After the preparation of refrigerated circulating water of the refrigeration system is completed, the control valve of the cold storage output pipe is closed, and the refrigerated circulating water enters the refrigeration storage input pipe and the direct supply water inlet pipeline through the two refrigeration output pipes, and the refrigerated circulating water enters the cooling system of the data center through the direct supply water inlet pipeline, and the excess refrigerated circulating water passes through the cold storage tank; 6) When the temperature monitoring device detects that the temperature of the natural cold source is greater than 19°C, and the peak and valley periods of electricity consumption are at peak times, the cold storage tank provides refrigerated circulating water for the data center cooling system. The cooling control system opens the cooling output pipe and the water storage Return water inlet pipe The control valve of the second refrigeration return pipe is opened, and the return water in the cold storage tank enters the refrigeration system through the second refrigeration return pipe, and step 5 is started at the same time.
10. An implementation method of a power supply system based on data center energy saving according to claim 1, characterized in that: It also includes a power supply system control method, the steps are as follows: 1) When the power consumption peak is at the low point, the mains power supply module is used for power supply. The power control system of the data center turns on the mains input terminal, supplies power to the data center through the mains, and charges the energy storage power supply module through the mains. At the same time, the refrigeration system turns on the mains input terminal according to the instructions of the cooling control system, and uses the mains to power the refrigeration system. 2) When the power consumption is at its peak, the energy storage power supply module is used to supply power. The power manager of the data center receives the time threshold information and sends instructions to the energy storage input terminal, opens the energy storage input terminal, and supplies power to the data center through the electrochemical energy storage device. At the same time, when the cooling control system receives the monitoring information from the temperature monitoring device, when the temperature of the natural cold source is greater than 19°C and the refrigerated circulating water stored in the cold storage tank is insufficient, the cooling control system sends instructions to the unit power system. The unit power system judges based on the threshold set by the time controller, opens the energy storage input terminal, and the electrochemical energy storage device supplies power to the refrigeration system, and the refrigeration system starts working.