Wind-solar nuclear hydrogen storage integrated system applied to computing power center and operation method

Abstract

The invention provides a wind-light nuclear hydrogen storage integrated system applied to a computing power center and an operation method, and belongs to the technical field of electric power engineering. The wind-light nuclear hydrogen storage integrated system comprises a wind power generation system and a photovoltaic power generation system; the small nuclear reactor system serves as a flexible power supply, the installation capacity of the small nuclear reactor system is configured according to 100% of the total power load of the computing power center, and the small nuclear reactor system is used for meeting the power demands of a power system and an IT system of the computing power center; the hydrogen fuel cell power generation system serves as a main power supply of an IT system of the computing power center, and the installation capacity of the hydrogen fuel cell power generation system is configured according to 100% of the total electrical load of the computing power center; and the energy storage power station is used as a standby power supply, and the capacity of the energy storage power station is configured to supply power to the computing power center for continuous 15 minutes or is configured according to 20% of wind power and photovoltaic capacity. Through efficient integration and utilization of various clean energy, the energy self-sufficiency rate and the power supply stability of the computing power center are improved, and stable, reliable and environment-friendly power supply is provided for the computing power center.

Description

Technical Field

[0001] The present invention relates to the field of electric power engineering technology, and in particular to a wind, solar, nuclear and hydrogen storage integrated system and operation method applied to a computing power center. Background Art

[0002] The rapid development of wind and photovoltaic power generation technologies has significantly reduced the cost of renewable energy, providing an economic basis for hydrogen production. It is particularly important to use excess electricity to produce hydrogen when there is an excess of renewable energy. As computing centers have an increasing demand for renewable energy, the potential of hydrogen as a clean energy carrier has gradually been recognized. Using excess electricity from wind and photovoltaic power generation to produce hydrogen can achieve effective energy storage. Nuclear energy, as a stable, low-carbon energy source, can provide continuous power support for computing centers when wind and photovoltaic power generation are insufficient. By combining nuclear energy with hydrogen energy, higher energy efficiency and more stable power supply can be achieved.

[0003] In addition, small nuclear reactor technology has received widespread attention. Many countries and regions are actively developing small nuclear reactor technology. Many small nuclear reactor demonstration projects have been launched one after another, and some projects have entered the commercialization stage. Hydrogen energy utilization technology continues to mature, governments of various countries pay more and more attention to hydrogen energy, and relevant policies and investment support are also increasing, providing a good external environment for the development of wind, solar, nuclear and hydrogen storage technology. At present, there are some demonstration projects combining wind power, photovoltaics, nuclear energy, energy storage, hydrogen energy, and ammonia alcohol around the world. These projects have accumulated valuable experience for the large-scale application of the integrated solution of "wind, solar, nuclear and hydrogen storage" in the future.

[0004] According to the prior art, Publication No. CN202410101358.7 discloses an integrated wind-solar hydrogen storage-ammonia-alcohol system and operation method, including a biomass-to-methanol system, a wind-solar hydrogen production system, a pyrolysis gas power generation system and a hydrogen-to-urea synthesis system. The wind-solar hydrogen production system generates electricity through a wind power system and a photovoltaic power generation system and electrolyzes water to produce hydrogen. The biomass-to-methanol system uses biomass as a raw material for carbonization and then pyrolysis and gasification to prepare pyrolysis gas and synthesizes methanol together with the hydrogen produced by the wind-solar hydrogen production system. The pyrolysis gas produced by the biomass-to-methanol system generates electricity in the pyrolysis gas power generation system as a backup power source for the wind-solar hydrogen production system. The hydrogen-to-urea synthesis system separates nitrogen in the air and hydrogen produced by the wind-solar hydrogen production system to synthesize ammonia, and then synthesizes urea with carbon dioxide in the pyrolysis gas of the biomass-to-methanol system. However, the above technical solution only realizes the conversion and utilization between wind and solar and biomass energy, and does not fully consider the integration and coordinated utilization with other renewable energy sources. For example, nuclear energy and energy storage are not involved, which limits the safety, stability and flexibility of the overall energy system. Therefore, it is urgent to consider a more comprehensive energy integration solution to achieve more efficient energy utilization and lower carbon emissions to meet the growing and huge energy needs of computing centers. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide an integrated wind, solar, nuclear and hydrogen storage system and operation method for use in a computing power center. Through the efficient integration and utilization of multiple clean energy sources, the energy self-sufficiency rate and power supply stability of the computing power center are improved, providing the computing power center with a stable, reliable and environmentally friendly power supply.

[0006] To achieve the above object, the present invention provides the following solutions: A wind, solar, nuclear and hydrogen storage integrated system for computing power centers, including: Wind power generation system, used to generate electricity as one of the main power sources for the computing center power system; A photovoltaic power generation system, connected in parallel with the wind power generation system, serves as one of the main power sources for the computing center; Small nuclear reactor system, as a flexible power source, with an installed capacity of 100% of the total power load of the computing center, to meet the power needs of the power system and IT system of the computing center; The hydrogen fuel cell power generation system is used as the main power supply for the IT system of the computing center. Its installation capacity is configured according to 100% of the total power load of the computing center. The energy storage power station, as a backup power source, is configured with the capacity to supply power to the computing center for 15 minutes continuously or at 20% of the wind power and photovoltaic capacity.

[0007] Preferably, the power output end of the wind power generation system and the power output end of the photovoltaic power generation system are connected to the power system through a main bus, and the wind power generation system and the photovoltaic power generation system are also respectively connected to the hydrogen fuel power generation system and the energy storage power station, and the hydrogen fuel power generation system is connected to the main bus of the IT system.

[0008] Preferably, the energy storage power station is arranged on the branch busbars of the wind power generation system and the photovoltaic power generation system, and is used to store electric energy and supply power to the power system or the IT system.

[0009] Preferably, the hydrogen fuel power generation system consists of an electrolyzer, a hydrogen buffer tank and a hydrogen fuel cell. The electrolyzer is connected to the branch bus of the wind power generation system and the photovoltaic power generation system, the power output end of the hydrogen fuel cell is connected to the main bus of the IT system, the gas outlet end of the electrolyzer is connected to the gas inlet end of the hydrogen buffer tank through a pipeline, and the gas outlet end of the hydrogen buffer tank is connected to the gas inlet end of the hydrogen fuel cell through a pipeline, so as to store the generated hydrogen for use by the hydrogen fuel cell.

[0010] Preferably, the power output end of the small nuclear reactor system is connected to the power system and the IT system respectively, and a main bus tie switch is provided between the small nuclear reactor system and the IT system. When wind power generation, photovoltaic power generation and hydrogen fuel cell power generation are insufficient, the small nuclear reactor system is in a hot backup state, starts automatically and supplies power to the power system or the IT system.

[0011] The present invention also provides an operation method of the wind-solar-nuclear-hydrogen storage integrated system applied to a computing power center, comprising the following steps: S1. Use wind power generation system and photovoltaic power generation system to provide electric energy to the power system of the computing power center. If the power supply of wind power generation system and photovoltaic power generation system is greater than the load of the power system, the excess power is transmitted to the energy storage power station for storage; S2. If the energy storage capacity of the energy storage power station is full, and the power supply of the wind power generation system and the photovoltaic power generation system is greater than the load of the power system, the excess power enters the electrolyzer in the hydrogen fuel cell power generation system to produce hydrogen by electrolysis, and the hydrogen supply of the system's external pipeline is reduced; S3. If the power supply of the wind power generation system and the photovoltaic power generation system is less than the load of the power system, the energy storage power station starts to supply power to the busbar of the power system; if the energy storage capacity of the energy storage power station cannot support the load of the power system to operate below the threshold of 15 minutes, the small nuclear reactor system in the hot backup state starts and supplies power to the busbar of the power system; S4. Use the hydrogen fuel cell power generation system to provide power to the IT system of the computing center. If the hydrogen supply from the external pipeline of the hydrogen fuel cell power generation system decreases and its power generation is less than the IT system load, the energy storage power station starts to supply power to the bus of the IT system; if the energy storage capacity of the energy storage power station cannot support the IT system load below the threshold of 15 minutes, the small nuclear reactor system in hot backup state starts and supplies power to the bus of the IT system; S5. If the wind power generation system, photovoltaic power generation system and hydrogen fuel cell power generation system are simultaneously out of power, the main bus tie switch is closed, and the energy storage power station and small nuclear reactor system supply power to the load of the computing power center at the same time.

[0012] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: (1) The present invention integrates multiple renewable energy sources such as wind energy, solar energy and nuclear energy to achieve diversified energy utilization, reduce dependence on fossil fuels and reduce greenhouse gas emissions. At the same time, by combining the characteristics of wind, solar and nuclear energy, energy can be flexibly allocated under different energy demand and supply conditions, thereby improving the stability and reliability of the system.

[0013] (2) Due to the large volatility of wind and solar energy, nuclear energy can provide stable base load electricity, while hydrogen energy, as an energy storage medium, helps to balance energy supply and demand, thereby improving the utilization efficiency of the overall energy system. At the same time, the present invention can also promote the development of the hydrogen energy industry chain, create opportunities for economic growth and employment, and promote global sustainable development by reducing carbon emissions and promoting the use of clean energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a structural schematic diagram of an integrated wind, solar, nuclear and hydrogen storage system applied to a computing power center according to the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Embodiment 1 like Figure 1 As shown, the present invention provides a wind, solar, nuclear and hydrogen storage integrated system applied to a computing power center, comprising: Wind power generation system, used to generate electricity as one of the main power sources for the computing center power system; The photovoltaic power generation system is connected in parallel with the wind power generation system as one of the main power sources for the computing center; Small nuclear reactor system, as a flexible power source, with an installed capacity of 100% of the total power load of the computing center, to meet the power needs of the power system and IT system of the computing center; The hydrogen fuel cell power generation system is used as the main power supply for the IT system of the computing center. Its installation capacity is configured according to 100% of the total power load of the computing center. The energy storage power station, as a backup power source, has a capacity configured to supply power to the computing center for 15 consecutive minutes or to be configured at 20% of the wind power and photovoltaic capacity. In this embodiment, the larger value is taken.

[0019] Among them, the power output end of the wind power generation system and the power output end of the photovoltaic power generation system are connected to the power system through the main bus. The wind power generation system and the photovoltaic power generation system are also connected to the hydrogen fuel power generation system and the energy storage power station respectively. The hydrogen fuel power generation system is connected to the main bus of the IT system. The energy storage power station is set on the branch bus of the wind power generation system and the photovoltaic power generation system, which is used to store electric energy and supply power to the power system or IT system. The hydrogen fuel power generation system consists of an electrolyzer, a hydrogen buffer tank and a hydrogen fuel cell. The electrolyzer is connected to the branch bus of the wind power generation system and the photovoltaic power generation system. The power output end of the hydrogen fuel cell is connected to the main bus of the IT system. The gas outlet of the electrolyzer is connected to the gas inlet end of the hydrogen buffer tank through a pipeline. The gas outlet of the hydrogen buffer tank is connected to the gas inlet end of the hydrogen fuel cell through a pipeline, which is used to store the generated hydrogen and supply it to the hydrogen fuel cell.

[0020] In addition, the power output end of the small nuclear reactor system is connected to the power system and the IT system respectively, and a main bus tie switch is provided between the small nuclear reactor system and the IT system. When the wind power generation, photovoltaic power generation and hydrogen fuel cell power generation are insufficient, the small nuclear reactor system is in hot standby state, self-starting and supplying power to the power system or IT system. The above-mentioned power system receives electric energy from the power system distribution device, and the electric energy is transmitted to the power load through the transformer. The IT system receives electric energy from the IT system distribution device, and transmits it to the uninterruptible power supply UPS through the transformer, and finally provides electric energy to the IT load.

[0021] Finally, the above-mentioned method for operating the wind, solar, nuclear and hydrogen storage integrated system applied to the computing power center includes the following steps: S1. Use wind power generation system and photovoltaic power generation system to provide electric energy to the power system of the computing power center. If the power supply of wind power generation system and photovoltaic power generation system is greater than the load of the power system, the excess power is transmitted to the energy storage power station for storage; S2. If the energy storage capacity of the energy storage power station is full, and the power supply of the wind power generation system and the photovoltaic power generation system is greater than the load of the power system, the excess power enters the electrolyzer in the hydrogen fuel cell power generation system to produce hydrogen by electrolysis, and the hydrogen supply of the system's external pipeline is reduced; S3. If the power supply of the wind power generation system and the photovoltaic power generation system is less than the load of the power system, the energy storage power station starts to supply power to the busbar of the power system; if the energy storage capacity of the energy storage power station cannot support the load of the power system to operate below the threshold of 15 minutes, the small nuclear reactor system in the hot backup state starts and supplies power to the busbar of the power system; S4. Use the hydrogen fuel cell power generation system to provide power to the IT system of the computing center. If the hydrogen supply from the external pipeline of the hydrogen fuel cell power generation system decreases and its power generation is less than the IT system load, the energy storage power station starts to supply power to the bus of the IT system; if the energy storage capacity of the energy storage power station cannot support the IT system load below the threshold of 15 minutes, the small nuclear reactor system in hot backup state starts and supplies power to the bus of the IT system; S5. If the wind power generation system, photovoltaic power generation system and hydrogen fuel cell power generation system are simultaneously out of power, the main bus tie switch is closed, and the energy storage power station and small nuclear reactor system supply power to the load of the computing power center at the same time.

[0022] Therefore, by adopting the above-mentioned integrated wind, solar, nuclear and hydrogen storage system and operation method applied to the computing power center, the energy self-sufficiency rate and power supply stability of the computing power center are improved through the efficient integration and utilization of various clean energy sources, providing the computing power center with a stable, reliable and environmentally friendly power supply.

[0023] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A wind, solar, nuclear and hydrogen storage integrated system applied to a computing power center, characterized in that: include: Wind power generation system, used to generate electricity as one of the main power sources for the computing center power system; A photovoltaic power generation system, connected in parallel with the wind power generation system, serves as one of the main power sources for the computing center; Small nuclear reactor system, as a flexible power source, with an installed capacity of 100% of the total power load of the computing center, to meet the power needs of the power system and IT system of the computing center; The hydrogen fuel cell power generation system, as the main power supply for the IT system of the computing center, has an installed capacity configured to 100% of the total power load of the computing center; The energy storage power station, as a backup power source, is configured with the capacity to supply power to the computing center for 15 minutes continuously or at 20% of the wind power and photovoltaic capacity.

2. According to claim 1, a wind, solar, nuclear and hydrogen storage integrated system applied to a computing power center is characterized in that: The power output end of the wind power generation system and the power output end of the photovoltaic power generation system are connected to the power system through the main bus. The wind power generation system and the photovoltaic power generation system are also connected to the hydrogen fuel power generation system and the energy storage power station respectively. The hydrogen fuel power generation system is connected to the main bus of the IT system.

3. The wind, solar, nuclear and hydrogen storage integrated system applied to a computing power center according to claim 2 is characterized in that: The energy storage power station is arranged on the branch busbars of the wind power generation system and the photovoltaic power generation system, and is used to store electric energy and supply power to the power system or the IT system.

4. The wind, solar, nuclear and hydrogen storage integrated system applied to a computing power center according to claim 3 is characterized in that: The hydrogen fuel power generation system consists of an electrolyzer, a hydrogen buffer tank and a hydrogen fuel cell. The electrolyzer is connected to the branch bus of the wind power generation system and the photovoltaic power generation system. The power output end of the hydrogen fuel cell is connected to the main bus of the IT system. The gas outlet end of the electrolyzer is connected to the gas inlet end of the hydrogen buffer tank through a pipeline. The gas outlet end of the hydrogen buffer tank is connected to the gas inlet end of the hydrogen fuel cell through a pipeline, and is used to store the generated hydrogen for use by the hydrogen fuel cell.

5. The wind, solar, nuclear and hydrogen storage integrated system applied to a computing power center according to claim 1 is characterized in that: The power output end of the small nuclear reactor system is connected to the power system and the IT system respectively, and a main bus tie switch is arranged between the small nuclear reactor system and the IT system. When wind power generation, photovoltaic power generation and hydrogen fuel cell power generation are insufficient, the small nuclear reactor system is in a hot backup state, starts automatically and supplies power to the power system or the IT system.

6. The method for operating a wind-solar-nuclear-hydrogen storage integrated system applied to a computing power center according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Use wind power generation system and photovoltaic power generation system to provide electric energy to the power system of the computing power center. If the power supply of wind power generation system and photovoltaic power generation system is greater than the load of the power system, the excess power is transmitted to the energy storage power station for storage; S2. If the energy storage capacity of the energy storage power station is full, and the power supply of the wind power generation system and the photovoltaic power generation system is greater than the load of the power system, the excess power enters the electrolyzer in the hydrogen fuel cell power generation system to produce hydrogen by electrolysis, and the hydrogen supply of the system's external pipeline is reduced; S3. If the power supply of the wind power generation system and the photovoltaic power generation system is less than the load of the power system, the energy storage power station starts to supply power to the busbar of the power system; if the energy storage capacity of the energy storage power station cannot support the load of the power system to operate below the threshold of 15 minutes, the small nuclear reactor system in the hot backup state starts and supplies power to the busbar of the power system; S4. Use the hydrogen fuel cell power generation system to provide power to the IT system of the computing center. If the hydrogen supply from the external pipeline of the hydrogen fuel cell power generation system decreases and its power generation is less than the IT system load, the energy storage power station starts to supply power to the bus of the IT system; if the energy storage capacity of the energy storage power station cannot support the IT system load below the threshold of 15 minutes, the small nuclear reactor system in hot backup state starts and supplies power to the bus of the IT system; S5. If the wind power generation system, photovoltaic power generation system and hydrogen fuel cell power generation system are simultaneously out of power, the main bus tie switch is closed, and the energy storage power station and small nuclear reactor system supply power to the load of the computing center at the same time.

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