新型电力系统干式空心平波电抗器包封绕组的电动力分布特性

周秀; 白金; 杨鑫; 田天; 刘雅薇; 谢江珂

周秀,白金,杨鑫,田天,刘雅薇,谢江珂.新型电力系统干式空心平波电抗器包封绕组的电动力分布特性[J].电测与仪表,2026,63(8):75-83.
zhouxiu,baijin,yangxin,tiantian,liuyawei,xiejiangke.Electrodynamic force distribution characteristics of encapsulation winding of new dry-type air-core smoothing reactor in power system[J].Electrical Measurement & Instrumentation,2026,63(8):75-83.

新型电力系统干式空心平波电抗器包封绕组的电动力分布特性

Electrodynamic force distribution characteristics of encapsulation winding of new dry-type air-core smoothing reactor in power system

DOI：10.19753 / j.issn1001-1390.2026.08.008

中文关键词: 干式空心平波电抗器场-路耦合谐波电动力

英文关键词:dry-type air-core smoothing reactor , field-circuit coupling , harmonic , electric power

基金项目:国家电网有限公司总部科技项目(5500-20233517 9A-1-1-ZN)

作者中文名	作者英文名	单位
周秀	zhouxiu	国网宁夏电力有限公司电力科学研究院
白金	baijin	国网宁夏电力有限公司电力科学研究院
杨鑫	yangxin	长沙理工大学电网防灾减灾全国重点实验室
田天	tiantian	国网宁夏电力有限公司电力科学研究院
刘雅薇	liuyawei	长沙理工大学电网防灾减灾全国重点实验室
谢江珂	xiejiangke	长沙理工大学电网防灾减灾全国重点实验室

摘要点击次数: 9

中文摘要:

新型电力系统新能源汇集下，换流站的谐波含量增加，干式空心平波电抗器将面临更加复杂的运行工况，进而引起的包封绕组电动力将是电抗器故障的重要原因。本文分析了新型电力系统新能源汇集下换流站阀侧的谐波特征，研究了在直流和多次谐波叠加条件下，干式空心平波电抗器包封绕组的电动力分布特性。首先基于傅里叶分析，得到干式空心平波电抗器运行中承载的谐波特征；然后建立电抗器的数学模型，通过场-路耦合的有限元分析方法研究了不同运行工况下的电动力分布特性。研究表明，相较于直流情况下，多次谐波的叠加使得电抗器绕组磁场和电动力分布不均，出现某层所受径向电动力明显高于相邻层绕组所受径向电动力现象；在交变磁场的作用下，电抗器整体径向电动力增大3倍，轴向电动力增加增大4倍。以上研究结果可为新型电力系统下平波电抗器的绝缘故障分析以及绝缘结构改进提供参考。

英文摘要:

Under the new energy convergence of the new power system, the harmonic content of the converter station increases, and the dry-type air-core smoothing reactor will face more complex operating conditions, and the entrapped winding electrodynamic force caused by it will be an important cause of the reactor failure. This paper analyzes the harmonic characteristics of the valve side of the converter station under the new energy collection of the new power system, and studies the electrodynamic distribution characteristics of the encapsulation winding of the dry-type air-core smoothing reactor under the condition of DC and multiple harmonic superposition. Firstly, based on Fourier analysis, the harmonic characteristics of dry-type air-core smoothing reactor in operation are obtained.Then the mathematical model of the reactor is established, and the electrodynamic distribution characteristics under different operating conditions are studied by the finite element analysis method of field-circuit coupling.The research shows the superposition of multiple harmonics makes the magnetic field and electrodynamic force of the reactor winding unevenly distributed, and the radial electrodynamic force of a layer is significantly higher than that of the adjacent layer winding. Under the action of alternating magnetic field, the overall radial electric force of the reactor increases by 3 times, and the axial electric force increases by 4 times. The above research results can provide reference for insulation fault analysis.

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