Frequency Modulation Capability Improvement Method of Offshore Wind Farms Based on Energy Storage Devices

Sichao Pan, Yue Yang, Ranran An, Xiaobing Liang, Wenlong Yang and Jiancun Liu ()
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Sichao Pan: Electric Power Research Institute, Guangdong Power Grid Co., Ltd., Guangzhou 510050, China
Yue Yang: Electric Power Research Institute, Guangdong Power Grid Co., Ltd., Guangzhou 510050, China
Ranran An: Electric Power Research Institute, Guangdong Power Grid Co., Ltd., Guangzhou 510050, China
Xiaobing Liang: Electric Power Research Institute, Guangdong Power Grid Co., Ltd., Guangzhou 510050, China
Wenlong Yang: School of Electrical Engineering and Automation, Tianjin University of Technology, Tianjin 300384, China
Jiancun Liu: School of Electrical Engineering and Automation, Tianjin University of Technology, Tianjin 300384, China

Energies, 2025, vol. 18, issue 22, 1-15

Abstract: Installing energy storage devices can improve the frequency modulation ability of offshore wind farms to participate in the grid. The lifecycle and wear of energy storage devices are significantly influenced by ambient temperature, charge and discharge rates, cycle depths, and operating environments. To extend the lifecycle and reduce the replacement frequency of these devices, their operation mode must be carefully considered. However, existing energy storage optimization configurations rarely consider these factors, particularly when addressing the frequency stability of offshore wind power systems. To address this gap, an optimization method is proposed for energy storage allocation that incorporates system frequency support, energy storage cost, and the devices’ lifecycle and degradation. This approach ensures a reasonable and efficient allocation of energy storage.

Keywords: energy storage device; frequency regulation; lifecycle; degradation cost (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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