| 引用本文: | 罗汉武,乐健,毛涛,李猛克,徐新尧,崔士刚.±800 kV特高压直流换流站二次设备回路传导电磁干扰特性[J].电力自动化设备,2018,(1): |
| LUO Hanwu,LE Jian,MAO Tao,LI Mengke,XU Xinyao,CUI Shigang.Conducted electromagnetic interference of secondary equipment circuit in ± 800 kV UHVDC converter station[J].Electric Power Automation Equipment,2018,(1): |
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| 摘要: |
| 对 ± 800 kV特高压直流换流站二次设备回路传导电磁干扰特性进行了分析，为采取相关电磁干扰防护措施提供依据。建立了包括换流阀、换流变、平波电抗器和交直流滤波器在内的直流换流站一次回路宽频等效电路，分析了各运行工况下一次回路传导电磁干扰特性，结合所建立的电流互感器和二次电缆宽频模型，进行了不同工况下二次回路传导电磁干扰特性的分析，研究了电缆长度、负载率等对电磁干扰特性的影响。 |
| 关键词: 特高压直流输电 换流站 电流互感器 宽频等效电路 二次设备回路 传导电磁干扰 |
| DOI：10.16081/j.issn.1006-6047.2018.01.026 |
| 分类号:TM721.1;TM723;O441 |
| 基金项目: |
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| Conducted electromagnetic interference of secondary equipment circuit in ± 800 kV UHVDC converter station |
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LUO Hanwu1, LE Jian2, MAO Tao3, LI Mengke1, XU Xinyao1, CUI Shigang1
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1.State Grid East Inner Mongolia Electric Power Maintenance Company, Tongliao 028000, China;2.School of Electrical Engineering, Wuhan University, Wuhan 430072, China;3.School of Electrical and Mechanical Engineering, Wuhan Donghu University, Wuhan 430074, China
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| Abstract: |
| To provide a reference for the enforcement of EMI(ElectroMagnetic Interference) protection mea-sures, the conducted EMI characteristics of the secondary equipment circuit in a ± 800 kV UHVDC converter station are analyzed. The broadband equivalent circuits of UHVDC converter stations including converter valve, converter transformer, smoothing reactor and filter are built. The conducted EMI characteristics of main circuit under several operation modes are also analyzed. Combined with the broadband equivalent circuits of current transformer and secondary cables, the conducted EMI characteristics of the secondary circuit under different operation modes are illustrated, and the impacts of cable length and load rate on the conducted EMI characteristics are analyzed. |
| Key words: UHVDC power transmission converter station current transformers broadband equivalent circuit secondary equipment circuit conducted electromagnetic interference |
