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Sub-/super-synchronous Oscillation Analysis and Suppression Strategy for Hydro-wind Renewable Energy Transmission via LCC-HVDC Systems
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Ziyue LING1, Wenchao MI1, 2, Tinghao MA1, Jianhua XIA2, Teng LUO2, Xiong DU  Senior Member, CPSS1
Journal of Power Supply | 2026, 24(6) : 242 - 254
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Journal of Power Supply | 2026, 24(6): 242-254
• Power Electronic Dominated Power Systems •
Sub-/super-synchronous Oscillation Analysis and Suppression Strategy for Hydro-wind Renewable Energy Transmission via LCC-HVDC Systems
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Ziyue LING1, Wenchao MI1, 2, Tinghao MA1, Jianhua XIA2, Teng LUO2, Xiong DU  Senior Member, CPSS1
Affiliations
  • 1.State Key Laboratory of Power Transmission Equipment Technology, Chongqing University, Chongqing 400044, China
  • 2.Xiluodu Power Plant, China Yangtze Power Co., Ltd., Zhaotong 657300, China
Published: 2026-06-30 doi: 10.13234/j.issn.2095-2805.2026.6.242
Outline
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With the advancement of dual-carbon goals, many of the existing hydropower stations plan to integrate nearby wind power within a certain range, form hydro-wind renewable clean energy bases and use the existing hydropower transmission lines for power delivery. As the wind power capacity increases gradually, a power system may encounter sub-/super-synchronous oscillation issues. To ensure the safe and stable operation of the system, a typical operation scenario for a system with hydro-wind renewable energy delivered via LCC-HVDC is constructed. The key factors causing sub-/super-synchronous oscillations are examined using the impedance method, and a virtual admittance-based suppression strategy for sub-/super-synchronous oscillations is put forward. This method reduces the interaction between LCC system and the hydro-wind renewable energy generation system by lowering the equivalent impedance of LCC system at the oscillation frequency, thus suppressing oscillations. In addition, the effectiveness of the proposed control strategy is verified through MATLAB/Simulink simulations.

Hydro-wind renewable energy  /  LCC-HVDC  /  oscillation suppression  /  impedance modeling
凌子玥, 米文超, 马庭豪, 夏建华, 罗腾, 杜雄中国电源学会高级会员. 水-风可再生能源经LCC-HVDC送出系统的次/超同步振荡分析及抑制策略研究. 电源学报, 2026 , 24 (6) : 242 -254 . DOI: 10.13234/j.issn.2095-2805.2026.6.242
Ziyue LING, Wenchao MI, Tinghao MA, Jianhua XIA, Teng LUO, Xiong DU. Sub-/super-synchronous Oscillation Analysis and Suppression Strategy for Hydro-wind Renewable Energy Transmission via LCC-HVDC Systems[J]. Journal of Power Supply, 2026 , 24 (6) : 242 -254 . DOI: 10.13234/j.issn.2095-2805.2026.6.242
Funding
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  • Three Gorges Jinsha River Chuan-Yun Hydropower Development Co., Ltd.(Z412302032)
Appendix
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Year 2026 volume 24 Issue 6
42
5
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.6.242
  • Receive Date：2025-10-30
  • Online Date：2026-10-29
  • Published：2026-06-30
Article Data
Affiliations
History
  • Received：2025-10-30
  • Revised：2025-12-03
  • Accepted：2025-12-12
Funding
Three Gorges Jinsha River Chuan-Yun Hydropower Development Co., Ltd.(Z412302032)
Affiliations
    1.State Key Laboratory of Power Transmission Equipment Technology, Chongqing University, Chongqing 400044, China
    2.Xiluodu Power Plant, China Yangtze Power Co., Ltd., Zhaotong 657300, China
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https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2026.6.242
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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