Research on AC & DC hybrid power supply system with high-proportion renewable energy of data centre

The Journal of Engineering

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[1] Dongguan Electric Power Design Institute, Dongguan 523000, Guangdong, People's Republic of China;Dongguan Power Supply Bureau of Guangdong Power Grid Corporation, Dongguan 523000, Guangdong, People's Republic of China;Electric Power Research Institute of Guangdong Power Grid Co. Ltd., Guangzhou 510080, Guangdong, People's Republic of China;

关键词: computer centres;    photovoltaic power systems;    power grids;    wind power plants;    power electronics;    hybrid power systems;    energy storage;    AC-DC power convertors;    power aware computing;    Internet;    power supplies to apparatus;    power transformers;    thermal power stations;    power generation reliability;    system simulation;    high-proportion renewable energy access;    green data centre;    wind power generation;    photothermal power generation;    thermal utilisation system;    power storage system;    multiport power electronic transformer;    distributed renewable energy;    power grid;    integrated energy storage system;    AC-&;    -DC hybrid power supply system;    energy Internet;    photovoltaic generation;    electricity storage;    heat storage;    power supply reliability calculation;    AC-&;    -DC multilevel mixing system;   

DOI  :  10.1049/joe.2018.8925

来源: publisher

【 摘 要 】

In the background of the energy Internet, the number of data centres is increasing, aiming at the shortcomings of power supply and reliability in power supply system of traditional data centre and the development trend of green data centres. This article proposes an AC & DC hybrid power supply system with high-proportion renewable energy. The system includes photovoltaic generation, wind power generation, photothermal power generation, thermal utilisation system, power storage system, and different types of loads. Therein, a multi-port power electronic transformer is used to realise AC & DC multi-level mixing system with high proportion of variety of distributed renewable energy. Thereafter, the power supply, power grid, and the load can efficiently complement each other by using the integrated energy storage system such as electricity storage and heat storage. In detail, the rationality and functionality of the AC & DC hybrid power system are analysed through the system simulation and power supply reliability calculation. Moreover, the results show that the proposed hybrid power supply can effectively improve the impact of high-proportion renewable energy access to the grid and provide a new design scheme for the green data centre.

【 授权许可】

CC BY