频率耦合影响下海上风电经附加频率控制MMC-HVDC并网稳定性研究

安然然; 王泽昊; 陶然; 梁晓兵; 陈锦攀; 黄振琳; 汪娟娟

安然然,王泽昊,陶然,梁晓兵,陈锦攀,黄振琳,汪娟娟.频率耦合影响下海上风电经附加频率控制MMC-HVDC并网稳定性研究[J].电测与仪表,2026,63(8):54-67.
AN Ranran,WANG Zehao,TAO Ran,LIANG Xiaobing,CHEN Jinpan,HUANG Zhenlin,WANG Juanjuan.Study on the stability of offshore wind power grid-connected by additional frequency control MMC-HVDC under the influence of frequency coupling effect[J].Electrical Measurement & Instrumentation,2026,63(8):54-67.

频率耦合影响下海上风电经附加频率控制MMC-HVDC并网稳定性研究

Study on the stability of offshore wind power grid-connected by additional frequency control MMC-HVDC under the influence of frequency coupling effect

DOI：10.19753 / j.issn1001-1390.2026.08.006

中文关键词: 海上风电柔性直流附加频率控制频率耦合小干扰稳定性

英文关键词:offshore wind power MMC-HVDC additional frequency control frequency coupling small disturbance stability

基金项目:国家自然科学基金资助项目(52277102); 中国南方电网有限责任公司科技项目(GDKJXM20222569)

作者中文名	作者英文名	单位
安然然	AN Ranran	广东电网有限责任公司电力科学研究院
王泽昊	WANG Zehao	华南理工大学
陶然	TAO Ran	广东电网有限责任公司电力科学研究院
梁晓兵	LIANG Xiaobing	广东电网有限责任公司电力科学研究院
陈锦攀	CHEN Jinpan	广东电网有限责任公司电力科学研究院
黄振琳	HUANG Zhenlin	广东电网有限责任公司电力科学研究院
汪娟娟	WANG Juanjuan	华南理工大学

摘要点击次数: 8

中文摘要:

海上风电经MMC-HVDC送出系统的并网稳定性问题近年来得到了大量关注。然而，由于MMC-HVDC直流电缆解耦的作用，导致海上风电经MMC-HVDC送出系统惯量缺失，同时，频率耦合效应也是影响海上风电经MMC-HVDC送出系统并网稳定性的重要因素。为此，本文旨在探究附加频率控制对海上风电经MMC-HVDC并网系统的频率支撑作用，补足主动频率支撑控制对MMC-HVDC交流侧导纳的影响，同时完善频率耦合效应下海上风电经MMC-HVDC并网的小干扰稳定性分析方法。首先，在直驱风电场经MMC-HVDC并网实际工程模型中投入一种附加频率控制，分别建立风场侧换流站及附加频率控制下柔直侧换流站导纳模型；其次，探究频率耦合效应影响下并网系统小干扰稳定性分析方法；然后，定量衡量系统频率耦合效应，关注附加频率控制投入后对系统频率耦合效应的影响；最后，提出一种谐振抑制措施，并通过PSCAD/EMTDC进行电磁暂态仿真，验证附加频率控制有效性、所建阻抗模型准确性、并网稳定性分析正确性及谐振抑制措施的有效性。

英文摘要:

The grid-connected stability of offshore wind power transmission system via MMC-HVDC has attracted much attention in recent years. However, due to the decoupling effect of MMC-HVDC cables, the inertia of the offshore wind power transmission system via MMC-HVDC is missing. The frequency coupling effect is also an important factor affecting the grid-connected stability of the offshore wind power transmission system via MMC-HVDC. Therefore, this paper aims to explore the frequency support effect of additional frequency control on the grid-connected system of offshore wind power through MMC-HVDC, complement the influence of active frequency support control on the AC admittance of MMC-HVDC, and improve the small disturbance stability analysis method of offshore wind power through MMC-HVDC under the frequency coupling effect. Firstly, an additional frequency control is put into the actual engineering model of the direct drive wind farm connected to the grid through MMC-HVDC, and the admittance models of the wind farm side converter station and the MMC converter station under the additional frequency control are established respectively. Secondly, the small disturbance stability analysis method of grid-connected systems under the influence of frequency coupling effect is explored. Then, the frequency coupling effect of the system is measured quantitatively, and the influence of additional frequency control on the system frequency coupling effect is concerned. Finally, a resonant suppression measure is proposed, and electromagnetic transient simulation is carried out by PSCAD/EMTDC to verify the effectiveness of additional frequency control, the accuracy of the impedance model, the correctness of grid-connected stability analysis and the effectiveness of the resonant suppression measure.

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