Frequency modulation control of electric energy storage system based on abundance index

Bingjie Li, Zesen Li and Guojing Liu

International Journal of Energy Technology and Policy, 2024, vol. 19, issue 1/2, 216-229

Abstract: In order to overcome the problems of high time consumption and low accuracy of frequency regulation control in power energy storage systems, this paper proposes a frequency regulation control method for power energy storage systems based on adequacy indicators. Firstly, the control principle of energy storage charging and discharging are analysed, and a frequency characteristic model of the power energy storage system is constructed. Then, considering the adequacy index of power generation capacity, a bundle condition for capacity balance of the power energy storage system is constructed. Finally, the frequency modulation of the power energy storage system is controlled through the equivalent frequency modulation coefficient. The experimental results show that the frequency modulation control takes only 8.2 seconds, and the accuracy of frequency modulation control can reach 99.90%, indicating that the method proposed in this paper can effectively improve the effectiveness of power energy storage systems.

Keywords: electric energy storage system; frequency modulation control; abundance index; equivalent frequency modulation coefficient; capacity balancing. (search for similar items in EconPapers)
Date: 2024
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