Multi‑type energy storage collaborative control based on wave parameters in microgrids with combined heat and power system
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(1.Zhejiang Provincial Key Laboratory of Electrical Machine Systems, Zhejiang University, Hangzhou 310027, China; 2.Electric Power Science Research Institute,State Grid Qinghai Electric Power Company, Xining 810008, China)

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TM743

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    Abstract:

    To deal with the power fluctuation and the consumption of photovoltaic power generation with the premise of the demand of power supply and heating in northwest China, this paper studies the collaborative control of multi?types of energy storage based on fluctuation parameters by taking the electric?thermal joint micro?network composed of photovoltaic, heat pump and hybrid energy storage as the research object. Firstly, the characteristics and energy conversion mode of electro?thermal joint microgrid are analyzed. Then, a two?layer collaborative control strategy of multi?type energy storage based on fluctuation parameters is designed for the electro?thermal joint micro?grid. In the upper layer, a strategy of multi?type energy storage collaborative power fluctuation suppression is proposed based on the time?scale of power fluctuation and the low?pass filtering method with variable parameters. In the lower layer, an adaptive control strategy for energy transfer of hybrid energy storage is proposed based on the requirement of the power fluctuation suppression and the mechanism of voltage and frequency in microgrid. Finally, the proposed algorithm is verified by simulation. The simulation results show the proposed method can suppress the power fluctuation of renewable energy and can extend the battery life on the premise of reducing the investment cost of electric energy storage effectively.

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赵建勇,张震霄,康 钧,赵文强,余紫薇,雷国斌,周 军.电—热联合微网中基于波动参数的多类型储能协同控制[J].电力科学与技术学报英文版,2023,38(1):164-170. ZHAO Jianyong, ZHANG Zhenxiao, KANG Jun, ZHAO Wenqiang, YU Ziwei, LEI Guobin, ZHOU Jun. Multi‑type energy storage collaborative control based on wave parameters in microgrids with combined heat and power system[J]. Journal of Electric Power Science and Technology,2023,38(1):164-170.

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  • Received:
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  • Online: April 10,2023
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