Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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海上风电交流并网系统谐波电流放大仿真评估与预测

来源:电工电气发布时间:2025-07-24 15:24 浏览次数:10

海上风电交流并网系统谐波电流放大仿真评估与预测

王晨轩1,王嘉毅2,曹狄3,汪卫东1,占刚强1
(1 国网浙江省电力有限公司经济技术研究院,浙江 杭州 310016;
2 浙江省送变电工程有限公司,浙江 杭州 310016;
3 国网浙江省电力有限公司超高压分公司,浙江 杭州 311121)
 
    摘 要:鱼山岛周边海域作为浙江海上风电基地的重要组成部分,大容量海上风电场通过长距离海缆并网,存在谐波电流放大风险。对接入鱼山岛的 DS 与 SS 海上风电场及其升压站、输电电缆等作了详细建模,分析了海上风电并网电流谐波放大现象的原因,并通过仿真验证了这一现象。同时基于鱼山岛海上风电发展规划,通过仿真对未来规划下鱼山岛海风并网系统谐波电流放大水平作了预测,建议海上风电厂家、业主与电网公司,在规划设计阶段均应考虑新接入风电场对谐波电流放大效应的影响,合理设计电能质量治理装置容量,以应对这一问题。
    关键词: 谐波电流放大;海上风电交流并网系统;电缆电容;电能质量
    中图分类号:TM614     文献标识码:A     文章编号:1007-3175(2025)07-0037-06
 
Simulation Evaluation and Prediction of Harmonic Current Amplification in
Offshore Wind Power AC Grid Connected System
 
WANG Chen-xuan1, WANG Jia-yi2, CAO Di3, WANG Wei-dong1, ZHAN Gang-qiang1
(1 Economic Research Institute of State Grid Zhejiang Electric Power Co., Ltd, Hangzhou 310016, China;
2 Zhejiang Electric Transmission and Transformation Engineering Corporation, Hangzhou 310016, China;
3 EHV Branch Company of State Grid Zhejiang Electric Power Co., Ltd, Hangzhou 311121, China)
 
    Abstract: The surrounding waters of Yushan Island, as a critical component of Zhejiang’s offshore wind power base, involve large-capacity offshore wind farms connected to the grid via long-distance submarine cables, which carry risks of harmonic current amplification.Detailed modeling was conducted for the DS and SS offshore wind farms connected to Yushan Island, along with their step-up stations and transmission cables. The causes of harmonic current amplification in offshore wind power grid connected were analyzed and verified through simulations. Based on the development plan for Yushan Island’s offshore wind power, simulations were also performed to predict harmonic current amplification levels under future offshore wind power grid connected system. It is recommended that offshore wind turbine manufacturers,project owners, and grid operators should consider the harmonic current amplification effects of newly connected wind farms during the planning and design phases, and appropriately size power quality control devices to address this issue.
    Key words: harmonic current amplification; offshore wind AC grid connected system; cable capacitance; power quality
 
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