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Frequency Support Strategy for Grid-forming Virtual Synchronization PV-storage Grid-connected System
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Yang LIU1, Yingming LIN1, Da YU1, Fengneng LI2, Jiafei HUAN3, Honglu ZHU4
Journal of Power Supply | 2025, 23(3) : 152 - 161
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Journal of Power Supply | 2025, 23(3): 152-161
• Special Issue on Analysis and Control of Power Quality in New Power Systems •
Frequency Support Strategy for Grid-forming Virtual Synchronization PV-storage Grid-connected System
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Yang LIU1, Yingming LIN1, Da YU1, Fengneng LI2, Jiafei HUAN3, Honglu ZHU4
Affiliations
  • 1.Power Dispatching Control Center, Guangdong Power Grid Corporation, Guangzhou 510699, China
  • 2.Guangdong Key Laboratory of Green Energy Technology, South China University of Technology, Guangzhou 510641, China
  • 3.North China Branch, State Grid Corporation of China, Beijing 100053, China
  • 4.School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China
Published: 2025-05-30 doi: 10.13234/j.issn.2095-2805.2025.3.152
Outline
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The accurate assessment of system frequency modulation requirements and the alleviation of contradiction between steady-state output and dynamic regulation of PV-storage grid-connected units are crucial for realizing the rapid frequency support in grid-forming virtual synchronization PV-storage grid-connected systems. First, a model of a grid-forming virtual synchronization PV-storage grid-connected system is built, and the coupling characteristics among multiple control objectives are analyzed. Second, the traditional grid-forming control is improved based on the damping compensation principle to boost the steady-state control accuracy of PV-storage units. On this basis, frequency security early warning and the controller’s dynamic performance constraints are utilized to quantitatively evaluate the grid-forming control parameters, and a frequency support strategy for the grid-forming virtual synchronization PV-storage grid-connected system is proposed. Finally, a simulation system is constructed, and results verify that the PV-storage grid-connected units can swiftly support the system frequency and remarkably enhance the system frequency security under the proposed control strategy.

Frequency support  /  virtual synchronization  /  damping compensation  /  coordinated control
刘洋, 林英明, 余达, 李丰能, 环加飞, 朱红路. 构网型虚拟同步化光储并网系统的频率支撑策略. 电源学报, 2025 , 23 (3) : 152 -161 . DOI: 10.13234/j.issn.2095-2805.2025.3.152
Yang LIU, Yingming LIN, Da YU, Fengneng LI, Jiafei HUAN, Honglu ZHU. Frequency Support Strategy for Grid-forming Virtual Synchronization PV-storage Grid-connected System[J]. Journal of Power Supply, 2025 , 23 (3) : 152 -161 . DOI: 10.13234/j.issn.2095-2805.2025.3.152
Funding
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  • Science and Technology Project of North China Branch of State Grid Corporation of China(SGNC0000DKXX2310264)
  • Science and Technology Project of China Southern Power Grid Co., Ltd.(GDKJXM20220335)
Appendix
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Year 2025 volume 23 Issue 3
52
7
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.3.152
  • Receive Date：2024-11-25
  • Online Date：2026-10-26
  • Published：2025-05-30
Article Data
Affiliations
History
  • Received：2024-11-25
  • Revised：2024-12-29
  • Accepted：2025-01-10
Funding
Science and Technology Project of North China Branch of State Grid Corporation of China(SGNC0000DKXX2310264)
Science and Technology Project of China Southern Power Grid Co., Ltd.(GDKJXM20220335)
Affiliations
    1.Power Dispatching Control Center, Guangdong Power Grid Corporation, Guangzhou 510699, China
    2.Guangdong Key Laboratory of Green Energy Technology, South China University of Technology, Guangzhou 510641, China
    3.North China Branch, State Grid Corporation of China, Beijing 100053, China
    4.School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China
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https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2025.3.152
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