Methods of realising grid frequency modulation by using adiabatic electromagnetic compressed-air energy storage

Liudong Zhang, Bo Wang, Yanliu Li, Xinying Zhu, Zhizhu Qu and Haoyu Zhong

International Journal of Energy Technology and Policy, 2025, vol. 20, issue 6, 90-118

Abstract: To address the issue of increased frequency fluctuations in the power grid following the integration of a high proportion of renewable energy sources, this paper develops a frequency regulation (FM) control model for an adiabatic electromagnetic compressed air energy storage system (CAES). Simulation results show that when the disturbance intensity is 0.02 p.u., for strategy 1, the frequency deviation (FD) of the proposed method is ±0.011 p.u., with a response time of only 0.477 seconds; for strategy 2, the frequency modulation (FM) accuracy of the proposed method is ±0.031 p.u., with a response time of 0.79 seconds. The research results show that an adiabatic electromagnetic compressed air energy storage system can effectively improve the frequency regulation accuracy and response speed of the power grid, providing a stable and efficient frequency regulation method for power grids with a high penetration of renewable energy sources.

Keywords: grid frequency modulation; frequency control strategy; adiabatic electromagnetic compressed-air energy storage; frequency stability; energy storage and release optimisation; short-time Fourier transform; STFT. (search for similar items in EconPapers)
Date: 2025
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