A data center power supply method, device, and terminal based on photovoltaic power generation

Abstract

This invention discloses a data center power supply method, device, and terminal based on photovoltaic power generation, comprising: setting a first operating mode corresponding to a first energy storage system as a photovoltaic fluctuation smoothing mode, and setting a second operating mode corresponding to a second energy storage system as a backup power mode; during normal operation of the mains power supply, controlling the mains power supply and the photovoltaic system to jointly supply power to the data center, and controlling the switching between the first and second operating modes in real time based on the number of charge and discharge cycles of the first or second energy storage system; wherein, the photovoltaic fluctuation smoothing mode refers to smoothing the fluctuations in the output power of the photovoltaic system, and the backup power mode refers to serving as a backup power source for the data center. This invention reduces the consumption of traditional energy by introducing a photovoltaic system to power the data center, and simultaneously extends the service life of the energy storage system and improves its utilization rate by alternately switching the operating modes of the two sets of energy storage systems.

Description

Technical Field

[0001] This invention relates to the field of data center power supply technology, and in particular to a data center power supply method, apparatus and terminal based on photovoltaic power generation. Background Technology

[0002] With the rapid development of digital technology and the backdrop of new infrastructure construction, data center energy consumption is increasing rapidly at a rate of 12% annually. It is projected that by 2035 and 2050, the total energy consumption of data centers nationwide will exceed 600 TWh and 1000 TWh respectively, accounting for 5.31% and 7.35% of the total electricity consumption of the entire society. The energy consumption problem of data centers is becoming increasingly prominent; therefore, utilizing clean energy to reduce energy consumption and save electricity costs has become an important factor for the sustainable development of data centers. Solar energy is a clean energy source. Integrating photovoltaic power generation systems into data centers can reduce the amount of electricity data centers draw from the grid, aligning with the strategy of sustainable economic and social development. Energy storage can flexibly regulate resources and plays a vital role in optimizing data center energy use, maximizing the use of clean energy, improving power supply reliability, and promoting intelligent energy management. The combined application of photovoltaic power generation and energy storage in data center power supply systems, improving the utilization of clean energy and reducing the consumption of non-renewable energy, has become the future development direction of data center power supply systems.

[0003] Most existing data centers use traditional UPS power supply systems and high-voltage DC UPS power supply systems for power. In high-voltage DC UPS systems, the battery packs act as the uninterruptible power supply, providing backup power to the data center servers during mains power failures. However, the stored energy is only available during power outages, indicating a lack of scientific and rational energy allocation. In traditional UPS systems, the batteries act as backup power. When the input power fails, an inverter converts the DC power supplied by the batteries into AC power before supplying it to the load. The load then converts the AC power back into DC power to supply the servers. This multiple conversion between AC and DC not only reduces energy efficiency but also increases the risk of power system failures, weakening the system's reliability to some extent. Furthermore, most existing data centers do not integrate renewable energy sources such as solar power to reduce energy costs, which is inconsistent with the sustainable development of data centers. Summary of the Invention

[0004] This invention provides a data center power supply method, device and terminal based on photovoltaic power generation. It introduces photovoltaic power generation to reduce the traditional energy consumption of the data center, and alternately switches the working modes of two sets of energy storage systems to avoid frequent charging and discharging of a single energy storage system, which would affect the service life of the energy storage system.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a data center power supply method based on photovoltaic power generation, comprising:

[0006] The first working mode corresponding to the first energy storage system is set to the photovoltaic fluctuation smoothing mode, and the second working mode corresponding to the second energy storage system is set to the backup power mode.

[0007] During normal operation of the mains power supply, the mains power supply and the photovoltaic system are controlled to jointly supply power to the data center, and the first working mode and the second working mode are switched in real time based on the number of charge and discharge cycles of the first energy storage system or the second energy storage system.

[0008] The photovoltaic fluctuation smoothing mode refers to smoothing the fluctuations in the output power of the photovoltaic system, and the backup power mode refers to serving as a backup power source for the data center.

[0009] By implementing the embodiments of this application, a combination of photovoltaic systems and mains power is used as the power source for the data center, reducing the proportion of traditional energy use and saving significant amounts of electricity. This not only reduces the power supply cost of the data center but also alleviates the environmental pressure caused by the high energy consumption of traditional energy sources, thereby promoting the sustainable development of the data center. Furthermore, the alternating switching of the operating modes of the two energy storage systems during normal mains power supply operation maximizes the utilization and rational allocation of the energy storage systems. This scientifically and rationally utilizes the battery capacity and stored energy of the energy storage systems, avoiding energy waste and preventing the impact of frequent charging and discharging of a single energy storage system on its lifespan.

[0010] As a preferred embodiment, the data center power supply method based on photovoltaic power generation further includes:

[0011] When the mains power supply fails, determine whether the second energy storage system is operating normally;

[0012] If the second energy storage system is operating normally, the voltage droop control slope of the second energy storage system is adjusted so that the second energy storage system supplies power to the data center, and it is determined whether the photovoltaic system is in a nighttime sleep period to determine the operating status of the photovoltaic system and the first energy storage system.

[0013] If the second energy storage system fails, the voltage droop control slope of the first energy storage system is adjusted to enable the first energy storage system to supply power to the data center until the second energy storage system completes fault repair. Then, the voltage droop control slope of the current second energy storage system is adjusted to enable the current second energy storage system to supply power to the data center, and the current first energy storage system is controlled to switch to the photovoltaic fluctuation smoothing mode.

[0014] The preferred embodiment of this application, by adjusting the voltage droop control slope of the energy storage system, allows for flexible control of the corresponding energy storage system to directly provide backup energy to the data center without requiring complex inverter conversion of the power supplied by the energy storage system. This simplifies the overall power supply process and improves the power supply reliability of the energy storage system to a certain extent. Furthermore, when both the mains power supply and the second energy storage system fail, adjusting the voltage droop control slope of the current first energy storage system allows it to directly supply power to the data center until the second energy storage system is repaired, thus ensuring the power supply reliability of the data center.

[0015] As a preferred embodiment, determining whether the photovoltaic system is in a nighttime sleep period to ascertain the operating status of the first energy storage system specifically involves:

[0016] Determine whether the photovoltaic system is in its nighttime sleep period;

[0017] If so, the voltage droop control slope of the first energy storage system is adjusted so that the first energy storage system supplies power to the data center;

[0018] If not, the photovoltaic system is controlled to supply power to the data center, and the first energy storage system is controlled to switch to the photovoltaic fluctuation smoothing mode.

[0019] In a preferred embodiment of this application, when the mains power supply fails and the second energy storage system is operating normally, the control mode of the second energy storage system is voltage droop control. Furthermore, when the photovoltaic system is in a nighttime dormant period, the control mode of the first energy storage system is also voltage droop control. The two energy storage systems form a multi-point droop control, jointly undertaking the regulation of system voltage and power, improving discharge response speed and capability, thereby strengthening the power supply capability of the data center and improving power supply reliability.

[0020] As a preferred embodiment, during normal operation of the mains power supply, the system controls the mains power supply and the photovoltaic system to jointly supply power to the data center, and, based on the number of charge / discharge cycles of the first energy storage system or the second energy storage system, controls the switching between the first operating mode and the second operating mode in real time, specifically as follows:

[0021] During normal operation of the mains power supply, the system controls the mains power supply and the photovoltaic system to jointly supply power to the data center, and determines whether the first energy storage system or the second energy storage system meets the preset conditions.

[0022] If the current first working mode is the photovoltaic fluctuation smoothing mode, and the number of charge and discharge cycles of the first energy storage system meets the preset threshold, then the control mode of the first working mode is adjusted from the constant power control mode to the voltage droop control mode, so as to control the first working mode to switch to the backup power mode.

[0023] If the current second operating mode is the photovoltaic fluctuation smoothing mode, and the number of charge and discharge cycles of the second energy storage system meets the preset threshold, then the control method of the second operating mode is adjusted from the constant power control method to the voltage droop control method, so as to control the second operating mode to switch to the backup power mode.

[0024] The preferred embodiment of this application achieves alternating switching between the working modes of the first and second energy storage systems by changing the two energy storage system control methods: constant power control and voltage droop control. This balances the charging and discharging frequencies of the two energy storage systems, avoids the impact of frequent charging and discharging on the lifespan of the energy storage systems, and scientifically and rationally utilizes the battery capacity and stored energy of the two energy storage systems, thereby improving the utilization rate of the energy storage systems.

[0025] To address the same technical problem, embodiments of the present invention also provide a data center power supply device based on photovoltaic power generation, comprising:

[0026] The initial setup module is used to set the first operating mode of the first energy storage system to a photovoltaic fluctuation smoothing mode, and to set the second operating mode of the second energy storage system to a backup power mode; wherein, the photovoltaic fluctuation smoothing mode refers to smoothing the fluctuation of the output power of the photovoltaic system, and the backup power mode refers to serving as a backup power source for the data center.

[0027] The mode switching module is used to control the mains power supply and the photovoltaic system to jointly supply power to the data center during normal operation of the mains power supply, and to control the switching between the first working mode and the second working mode in real time based on the number of charge and discharge cycles of the first energy storage system or the second energy storage system.

[0028] As a preferred embodiment, the data center power supply device based on photovoltaic power generation further includes:

[0029] The judgment module is used to determine whether the second energy storage system is operating normally when the mains power supply fails.

[0030] The first power supply module is used to adjust the voltage droop control slope of the second energy storage system if the second energy storage system is operating normally, so that the second energy storage system can supply power to the data center, and to determine whether the photovoltaic system is in a nighttime sleep period, so as to determine the operating status of the photovoltaic system and the first energy storage system.

[0031] The second power supply module is used to adjust the voltage droop control slope of the first energy storage system if the second energy storage system fails, so that the first energy storage system supplies power to the data center, until the second energy storage system completes fault repair, adjust the current voltage droop control slope of the second energy storage system so that the current second energy storage system supplies power to the data center, and control the current first energy storage system to switch to the photovoltaic fluctuation smoothing mode.

[0032] As a preferred embodiment, the first power supply module specifically includes:

[0033] The first judgment unit is used to determine whether the photovoltaic system is in a nighttime sleep period;

[0034] The first power supply unit is used to adjust the voltage droop control slope of the first energy storage system so that the first energy storage system can supply power to the data center if the photovoltaic system is in a nighttime sleep period.

[0035] The second power supply unit is used to control the photovoltaic system to supply power to the data center if the photovoltaic system is not in a nighttime sleep period, and to control the first energy storage system to switch to the photovoltaic fluctuation smoothing mode.

[0036] As a preferred embodiment, the mode switching module specifically includes:

[0037] The second judgment unit is used to control the mains power supply and the photovoltaic system to jointly supply power to the data center during the normal operation of the mains power supply, and to determine whether the first energy storage system or the second energy storage system meets the preset conditions.

[0038] The first mode switching unit is used to switch the control mode of the first working mode from the constant power control mode to the voltage droop control mode if the current first working mode is the photovoltaic fluctuation smoothing mode and the number of charge and discharge cycles of the first energy storage system meets the preset threshold, so as to control the first working mode to switch to the backup power mode.

[0039] The second mode switching unit is used to switch the control mode of the second working mode from the constant power control mode to the voltage droop control mode if the current second working mode is the photovoltaic fluctuation smoothing mode and the number of charge and discharge cycles of the second energy storage system meets the preset threshold, so as to control the second working mode to switch to the backup power mode.

[0040] To address the same technical problem, the present invention also provides a terminal, including a processor, a memory, and a computer program stored in the memory; wherein the computer program can be executed by the processor to implement the aforementioned data center power supply method based on photovoltaic power generation.

[0041] To address the same technical problem, the present invention also provides a computer-readable storage medium comprising a stored computer program; wherein, when the computer program is executed, it controls the device containing the computer-readable storage medium to perform the aforementioned photovoltaic power generation-based data center power supply method. Attached Figure Description

[0042] Figure 1 This is a schematic flowchart of a data center power supply method based on photovoltaic power generation provided in Embodiment 1 of the present invention;

[0043] Figure 2 This is a schematic diagram of a data center power supply device based on photovoltaic power generation, provided in Embodiment 1 of the present invention. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1:

[0046] Please refer to Figure 1 This is a flowchart illustrating a data center power supply method based on photovoltaic power generation, provided by an embodiment of the present invention. The method includes steps S1 to S2, each of which is detailed below:

[0047] Step S1: Set the first operating mode corresponding to the first energy storage system to the photovoltaic fluctuation smoothing mode, and set the second operating mode corresponding to the second energy storage system to the backup power mode; wherein, the photovoltaic fluctuation smoothing mode refers to smoothing the fluctuation of the output power of the photovoltaic system, and the backup power mode refers to serving as the backup power for the data center.

[0048] Specifically, due to the randomness and volatility of photovoltaic power generation, energy storage batteries are used to smooth out photovoltaic power fluctuations and ensure the stable operation of the power grid. Meanwhile, data centers have high requirements for the continuity of power supply to servers, therefore an uninterruptible power supply (UPS) is also needed as a backup power source. In summary, the first energy storage system is initially set up to smooth out the output power fluctuations of the photovoltaic system and track the photovoltaic output power to make the power output curve smoother, while the second energy storage system serves as an uninterruptible backup power source for the data center servers. Furthermore, the battery capacities of the first and second energy storage systems are usually the same, facilitating switching between the two systems.

[0049] Step S2: During the normal operation of the mains power supply, control the mains power supply and the photovoltaic system to jointly supply power to the data center, and control the switching between the first working mode and the second working mode in real time based on the number of charge and discharge cycles of the first energy storage system or the second energy storage system.

[0050] As a preferred embodiment, step S2 includes steps S21 to S23, each of which is detailed below:

[0051] Step S21: During the normal operation of the mains power supply, control the mains power supply and the photovoltaic system to jointly supply power to the data center, and determine whether the first energy storage system or the second energy storage system meets the preset conditions.

[0052] Specifically, traditional UPS and high-voltage DC UPS power supply systems both use traditional energy sources, which does not conform to the concept of energy conservation and emission reduction. In this embodiment, a high proportion of photovoltaic systems is introduced as one of the main power sources for the data center, reducing the proportion of traditional energy use.

[0053] In this embodiment, if the preset condition "the current first working mode is the photovoltaic fluctuation smoothing mode, and the number of charge and discharge cycles of the first energy storage system meets the preset threshold" is met, then step S22 is executed; if the preset condition "the current second working mode is the photovoltaic fluctuation smoothing mode, and the number of charge and discharge cycles of the second energy storage system meets the preset threshold" is met, then step S23 is executed.

[0054] Step S22: Adjust the control mode of the first working mode from constant power control mode to voltage droop control mode, so as to control the first working mode to switch to the backup power mode.

[0055] Step S23: Adjust the control mode of the second working mode from the constant power control mode to the voltage droop control mode, so as to control the second working mode to switch to the backup power mode.

[0056] In this embodiment, when the number of charge-discharge cycles of the energy storage system used to smooth the output power fluctuations of the photovoltaic system meets a preset threshold, the control method of the energy storage system is changed to control and switch the corresponding working mode of the energy storage system. This not only avoids the energy storage system, which serves as a backup power source, from being in a standby floating charge state for a long time, thus wasting its battery capacity and internally stored electrical energy, but also extends the service life of the energy storage system and improves the economic efficiency of power supply.

[0057] As a preferred embodiment, the data center power supply method based on photovoltaic power generation provided by the present invention further includes steps S3 to S5, the specific steps of which are as follows:

[0058] Step S3: When the mains power supply fails, determine whether the second energy storage system is operating normally.

[0059] In this embodiment, if the second energy storage system is operating normally, step S4 is executed; if the second energy storage system malfunctions, step S5 is executed.

[0060] Step S4: Adjust the voltage droop control slope of the second energy storage system to enable the second energy storage system to supply power to the data center, and determine whether the photovoltaic system is in a nighttime sleep period to determine the operating status of the photovoltaic system and the first energy storage system;

[0061] Step S5: Adjust the voltage droop control slope of the first energy storage system to enable the first energy storage system to supply power to the data center until the second energy storage system completes fault repair. Then, adjust the voltage droop control slope of the second energy storage system to enable the second energy storage system to supply power to the data center and control the first energy storage system to switch to the photovoltaic fluctuation smoothing mode.

[0062] In this embodiment, when the second energy storage system, which serves as a backup power source, fails, the data center will lose its uninterrupted backup power. Therefore, in order to provide uninterrupted power protection for the data center, the first energy storage system, which is used to smooth out the output power fluctuations of the photovoltaic system, is converted into an uninterrupted backup power source until the second energy storage system completes its fault repair.

[0063] As a preferred embodiment, step S4 includes steps S41 to S44, each of which is detailed below:

[0064] Step S41: Adjust the voltage droop control slope of the second energy storage system so that the second energy storage system supplies power to the data center.

[0065] Step S42: Determine whether the photovoltaic system is in a nighttime sleep period.

[0066] In this embodiment, if the photovoltaic system is in a nighttime sleep period, step S43 is executed; if the photovoltaic system is not in a nighttime sleep period, step S44 is executed.

[0067] Step S43: If the condition is met, adjust the voltage droop control slope of the first energy storage system so that the first energy storage system supplies power to the data center.

[0068] Specifically, the adjustment of the voltage droop control slope is related to the remaining power of the first energy storage system; appropriate adjustment can improve the power supply performance of the energy storage system. Simultaneously, the two energy storage systems jointly undertake the tasks of system power distribution and voltage regulation, enabling rapid stabilization of the system voltage.

[0069] Step S44: If not in the current state, control the photovoltaic system to supply power to the data center, and control the first energy storage system to switch to the photovoltaic fluctuation smoothing mode.

[0070] Please refer to Figure 2 This is a schematic diagram of a data center power supply device based on photovoltaic power generation, provided by an embodiment of the present invention. The system includes an initial setup module 1 and a mode switching module 2, and the specific details of each module are as follows:

[0071] The initial setup module 1 is used to set the first working mode corresponding to the first energy storage system to the photovoltaic fluctuation smoothing mode, and to set the second working mode corresponding to the second energy storage system to the backup power mode; wherein, the photovoltaic fluctuation smoothing mode refers to smoothing the fluctuation of the output power of the photovoltaic system, and the backup power mode refers to serving as the backup power for the data center.

[0072] The mode switching module 2 is used to control the mains power supply and the photovoltaic system to jointly supply power to the data center during normal operation of the mains power supply, and to control the switching between the first working mode and the second working mode in real time based on the number of charge and discharge cycles of the first energy storage system or the second energy storage system.

[0073] As a preferred embodiment, the mode switching module 2 specifically includes:

[0074] The second judgment unit is used to control the mains power supply and the photovoltaic system to jointly supply power to the data center during the normal operation of the mains power supply, and to determine whether the first energy storage system or the second energy storage system meets the preset conditions.

[0075] The first mode switching unit is used to switch the control mode of the first working mode from the constant power control mode to the voltage droop control mode if the current first working mode is the photovoltaic fluctuation smoothing mode and the number of charge and discharge cycles of the first energy storage system meets the preset threshold, so as to control the first working mode to switch to the backup power mode.

[0076] The second mode switching unit is used to switch the control mode of the second working mode from the constant power control mode to the voltage droop control mode if the current second working mode is the photovoltaic fluctuation smoothing mode and the number of charge and discharge cycles of the second energy storage system meets the preset threshold, so as to control the second working mode to switch to the backup power mode.

[0077] For the preferred option, please refer to Figure 2 The aforementioned data center power supply device based on photovoltaic power generation further includes a judgment module 3, a first power supply module 4, and a second power supply module 5, the specific details of which are as follows:

[0078] The judgment module 3 is used to determine whether the second energy storage system is operating normally when the mains power supply fails.

[0079] The first power supply module 4 is used to adjust the voltage droop control slope of the second energy storage system if the second energy storage system is operating normally, so that the second energy storage system can supply power to the data center, and to determine whether the photovoltaic system is in a nighttime sleep period, so as to determine the operating status of the photovoltaic system and the first energy storage system.

[0080] The second power supply module 5 is used to adjust the voltage droop control slope of the first energy storage system if the second energy storage system fails, so that the first energy storage system supplies power to the data center, until the second energy storage system completes fault repair, adjust the current voltage droop control slope of the second energy storage system so that the current second energy storage system supplies power to the data center, and control the current first energy storage system to switch to the photovoltaic fluctuation smoothing mode.

[0081] As a preferred embodiment, the first power supply module 4 specifically includes:

[0082] The first judgment unit is used to determine whether the photovoltaic system is in a nighttime sleep period;

[0083] The first power supply unit is used to adjust the voltage droop control slope of the first energy storage system so that the first energy storage system can supply power to the data center if the photovoltaic system is in a nighttime sleep period.

[0084] The second power supply unit is used to control the photovoltaic system to supply power to the data center if the photovoltaic system is not in a nighttime sleep period, and to control the first energy storage system to switch to the photovoltaic fluctuation smoothing mode.

[0085] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the device described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0086] To address the same technical problem, the present invention also provides a terminal, including a processor, a memory, and a computer program stored in the memory; wherein the computer program can be executed by the processor to implement the data center power supply method based on photovoltaic power generation as described in Embodiment 1.

[0087] To address the same technical problem, the present invention also provides a computer-readable storage medium comprising a stored computer program; wherein, when the computer program is executed, it controls the device containing the computer-readable storage medium to perform the data center power supply method based on photovoltaic power generation as described in Embodiment 1.

[0088] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0089] This invention provides a data center power supply method, apparatus, and terminal based on photovoltaic power generation. By using both mains power and a photovoltaic system as direct power sources for the data center, green energy is introduced to reduce the proportion of traditional energy use, thereby reducing traditional energy consumption and power supply costs in the data center. Furthermore, during normal operation of the mains power supply, the operating modes of the two sets of energy storage systems are alternately switched according to the number of charge-discharge cycles of the energy storage system, to fully utilize the battery capacity and internal energy storage of the energy storage system and extend its service life.

[0090] Furthermore, by adjusting the voltage droop control slope of the energy storage system, the energy storage system can be controlled to directly provide backup energy to the data center without the need for complex inverter conversion of the power supplied by the energy storage system. This simplifies the overall power supply process and improves the power supply reliability of the energy storage system to a certain extent.

[0091] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention for those skilled in the art.

Claims

1. A data center power supply method based on photovoltaic power generation, characterized in that, include: The first working mode corresponding to the first energy storage system is set to the photovoltaic fluctuation smoothing mode, and the second working mode corresponding to the second energy storage system is set to the backup power mode. During normal operation of the mains power supply, the mains power supply and the photovoltaic system are controlled to jointly supply power to the data center, and the first working mode and the second working mode are switched in real time based on the number of charge and discharge cycles of the first energy storage system or the second energy storage system. The photovoltaic fluctuation smoothing mode refers to smoothing the fluctuation of the output power of the photovoltaic system, and the backup power mode refers to serving as a backup power source for the data center. When the mains power supply fails, determine whether the second energy storage system is operating normally; If the second energy storage system is operating normally, the voltage droop control slope of the second energy storage system is adjusted so that the second energy storage system supplies power to the data center, and it is determined whether the photovoltaic system is in a nighttime sleep period to determine the operating status of the photovoltaic system and the first energy storage system. If the second energy storage system fails, the voltage droop control slope of the first energy storage system is adjusted to enable the first energy storage system to supply power to the data center until the second energy storage system completes fault repair. Then, the voltage droop control slope of the current second energy storage system is adjusted to enable the current second energy storage system to supply power to the data center, and the current first energy storage system is controlled to switch to the photovoltaic fluctuation smoothing mode.

2. The data center power supply method based on photovoltaic power generation as described in claim 1, characterized in that, The determination of whether the photovoltaic system is in a nighttime dormancy period to determine the operating status of the first energy storage system specifically involves: Determine whether the photovoltaic system is in its nighttime sleep period; If so, the voltage droop control slope of the first energy storage system is adjusted so that the first energy storage system supplies power to the data center; If not, the photovoltaic system is controlled to supply power to the data center, and the first energy storage system is controlled to switch to the photovoltaic fluctuation smoothing mode.

3. The data center power supply method based on photovoltaic power generation as described in claim 1, characterized in that, During normal operation of the mains power supply, the system controls the mains power supply and the photovoltaic system to jointly supply power to the data center. Furthermore, based on the number of charge / discharge cycles of the first energy storage system or the second energy storage system, the system controls the real-time switching between the first and second operating modes. Specifically: During normal operation of the mains power supply, the system controls the mains power supply and the photovoltaic system to jointly supply power to the data center, and determines whether the first energy storage system or the second energy storage system meets the preset conditions. If the current first working mode is the photovoltaic fluctuation smoothing mode, and the number of charge and discharge cycles of the first energy storage system meets the preset threshold, then the control mode of the first working mode is adjusted from the constant power control mode to the voltage droop control mode, so as to control the first working mode to switch to the backup power mode. If the current second operating mode is the photovoltaic fluctuation smoothing mode, and the number of charge and discharge cycles of the second energy storage system meets the preset threshold, then the control method of the second operating mode is adjusted from the constant power control method to the voltage droop control method, so as to control the second operating mode to switch to the backup power mode.

4. A data center power supply device based on photovoltaic power generation, characterized in that, include: The initial setup module is used to set the first operating mode of the first energy storage system to the photovoltaic fluctuation smoothing mode, and to set the second operating mode of the second energy storage system to the backup power mode; wherein, the photovoltaic fluctuation smoothing mode refers to smoothing the fluctuation of the output power of the photovoltaic system, and the backup power mode refers to serving as the backup power for the data center. The mode switching module is used to control the mains power supply and the photovoltaic system to jointly supply power to the data center during normal operation of the mains power supply, and to control the switching between the first working mode and the second working mode in real time based on the number of charge and discharge cycles of the first energy storage system or the second energy storage system. The judgment module is used to determine whether the second energy storage system is operating normally when the mains power supply fails. The first power supply module is used to adjust the voltage droop control slope of the second energy storage system if the second energy storage system is operating normally, so that the second energy storage system can supply power to the data center, and to determine whether the photovoltaic system is in a nighttime sleep period, so as to determine the operating status of the photovoltaic system and the first energy storage system. The second power supply module is used to adjust the voltage droop control slope of the first energy storage system if the second energy storage system fails, so that the first energy storage system supplies power to the data center, until the second energy storage system completes fault repair, adjust the current voltage droop control slope of the second energy storage system so that the current second energy storage system supplies power to the data center, and control the current first energy storage system to switch to the photovoltaic fluctuation smoothing mode.

5. A data center power supply device based on photovoltaic power generation as described in claim 4, characterized in that, The first power supply module specifically includes: The first judgment unit is used to determine whether the photovoltaic system is in a nighttime sleep period; The first power supply unit is used to adjust the voltage droop control slope of the first energy storage system so that the first energy storage system can supply power to the data center if the photovoltaic system is in a nighttime sleep period. The second power supply unit is used to control the photovoltaic system to supply power to the data center if the photovoltaic system is not in a nighttime sleep period, and to control the first energy storage system to switch to the photovoltaic fluctuation smoothing mode.

6. A data center power supply device based on photovoltaic power generation as described in claim 4, characterized in that, The mode switching module specifically includes: The second judgment unit is used to control the mains power supply and the photovoltaic system to jointly supply power to the data center during the normal operation of the mains power supply, and to determine whether the first energy storage system or the second energy storage system meets the preset conditions. The first mode switching unit is used to switch the control mode of the first working mode from the constant power control mode to the voltage droop control mode if the current first working mode is the photovoltaic fluctuation smoothing mode and the number of charge and discharge cycles of the first energy storage system meets the preset threshold, so as to control the first working mode to switch to the backup power mode. The second mode switching unit is used to switch the control mode of the second working mode from the constant power control mode to the voltage droop control mode if the current second working mode is the photovoltaic fluctuation smoothing mode and the number of charge and discharge cycles of the second energy storage system meets the preset threshold, so as to control the second working mode to switch to the backup power mode.

7. A terminal, characterized in that, It includes a processor, a memory, and a computer program stored in the memory; wherein the computer program can be executed by the processor to implement the data center power supply method based on photovoltaic power generation as described in any one of claims 1 to 3.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program; wherein, when the computer program is executed, it controls the device containing the computer-readable storage medium to perform the data center power supply method based on photovoltaic power generation as described in any one of claims 1 to 3.

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