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Cooperative Control Method for PV-storage Self-synchronized Voltage Source Inverters
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Kehui ZHOU1, Youze FU  Student Member, CPSS2, Yandong CHEN  Senior Member, CPSS2, Mingyu ZHANG  Student Member, CPSS2, Haiguo TANG1, Jinliang YOU1
Journal of Power Supply | 2025, 23(4) : 242 - 254
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Journal of Power Supply | 2025, 23(4): 242-254
• Renewable Energy System •
Cooperative Control Method for PV-storage Self-synchronized Voltage Source Inverters
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Kehui ZHOU1, Youze FU  Student Member, CPSS2, Yandong CHEN  Senior Member, CPSS2, Mingyu ZHANG  Student Member, CPSS2, Haiguo TANG1, Jinliang YOU1
Affiliations
  • 1.Electric Power Research Institute, State Grid Hunan Electric Power Co., Ltd., Changsha 410007, China
  • 2.National Engineering Research Center for Power Conversion and Control (Hunan University), Changsha 410082, China
Published: 2025-07-30 doi: 10.13234/j.issn.2095-2805.2025.4.242
Outline
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Self-synchronized voltage source inverters (SSVSIs) have attracted much attention for their capability to improve the voltage and frequency stability of power systems. To solve the problems of energy storage state-of-charge (SOC) imbalance, DC-side voltage fluctuations and AC-side output power oscillations during the parallel operation of PV-storage SSVSIs, the dynamic characteristics of AC- and DC-side power response of a parallel system of PV-storage SSVSIs are analyzed at first. Then, a cooperative control method for the parallel system is proposed, which realizes the dynamic balance of energy storage SOC by considering a cooperative allocation strategy for energy storage SOC and improves the dynamic characteristics of DC-side voltage through the feed-forward control of energy storage power. In addition, the AC-side output power oscillations are suppressed by damping enhancement control. Finally, the effectiveness of the proposed control method was verified by simulations and experimental results based on RT-LAB.

Self-synchronized voltage source inverter (SSVSI)  /  state-of-charge (SOC)  /  power allocation  /  power oscillation
周可慧, 符有泽中国电源学会学生会员, 陈燕东中国电源学会高级会员, 张明宇中国电源学会学生会员, 唐海国, 游金梁. 多光储自同步电压源逆变器协调控制方法. 电源学报, 2025 , 23 (4) : 242 -254 . DOI: 10.13234/j.issn.2095-2805.2025.4.242
Kehui ZHOU, Youze FU, Yandong CHEN, Mingyu ZHANG, Haiguo TANG, Jinliang YOU. Cooperative Control Method for PV-storage Self-synchronized Voltage Source Inverters[J]. Journal of Power Supply, 2025 , 23 (4) : 242 -254 . DOI: 10.13234/j.issn.2095-2805.2025.4.242
Funding
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  • National Natural Science Foundation of China(52077070)
  • Science and Technology Project of State Grid Hunan Electric Power Co., Ltd.(5216A321N301)
Appendix
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Year 2025 volume 23 Issue 4
58
7
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.4.242
  • Receive Date：2024-01-24
  • Online Date：2026-10-26
  • Published：2025-07-30
Article Data
Affiliations
History
  • Received：2024-01-24
  • Revised：2024-03-16
  • Accepted：2024-04-06
Funding
National Natural Science Foundation of China(52077070)
Science and Technology Project of State Grid Hunan Electric Power Co., Ltd.(5216A321N301)
Affiliations
    1.Electric Power Research Institute, State Grid Hunan Electric Power Co., Ltd., Changsha 410007, China
    2.National Engineering Research Center for Power Conversion and Control (Hunan University), Changsha 410082, China
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