Analysis on Working Principle and Performance Influencing Factors of 35 kV Quick-discharge Coil

CHEN Xiaoyu; JIN Yongtao; CAI Chongkai; HU Yezhou; CHEN Baichao; FU Shixun; TIAN Cuihua

doi:10.13296/j.1001-1609.hva.2018.09.037

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Analysis on Working Principle and Performance Influencing Factors of 35 kV Quick-discharge Coil

更新时间：2025-04-26

- Analysis on Working Principle and Performance Influencing Factors of 35 kV Quick-discharge Coil
- High VoltageApparatus Vol. 54, Issue 9, Pages: 234-241+247(2018)
- 作者机构：
  
  1. 国网浙江省电力有限公司绍兴供电公司
  2. 国网浙江省电力有限公司电力科学研究院
  3. 武汉大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.09.037
  CLC： TM53
- Published：2018
- 稿件说明：
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[1]陈晓宇,金涌涛,蔡重凯,胡叶舟,陈柏超,付师璕,田翠华.35 kV快速放电线圈工作原理及性能影响因素分析[J].高压电器,2018,54(09):234-241+247.

CHEN Xiaoyu, JIN Yongtao, CAI Chongkai, et al. Analysis on Working Principle and Performance Influencing Factors of 35 kV Quick-discharge Coil[J]. High voltageapparatus, 2018, 54(9): 234-241+247.
[1]陈晓宇,金涌涛,蔡重凯,胡叶舟,陈柏超,付师璕,田翠华.35 kV快速放电线圈工作原理及性能影响因素分析[J].高压电器,2018,54(09):234-241+247. DOI： 10.13296/j.1001-1609.hva.2018.09.037.

CHEN Xiaoyu, JIN Yongtao, CAI Chongkai, et al. Analysis on Working Principle and Performance Influencing Factors of 35 kV Quick-discharge Coil[J]. High voltageapparatus, 2018, 54(9): 234-241+247. DOI： 10.13296/j.1001-1609.hva.2018.09.037.

摘要

并联电容器组一般配套有放电线圈来释放电容残压

而传统硅钢铁心放电线圈的饱和速度较慢。为探讨提高快速放电线圈的饱和速度和电容残压的释放速度的方法

文中从理论上分析了快速放电线圈铁心饱和速度和电容残压释放速度的影响因素

在有限元分析软件Ansys Maxwell中建立场路耦合模型

对各因素的影响效果进行仿真分析

并对一台小容量样机进行放电试验以验证仿真模型的正确性。研究结果表明:快速放电线圈绕组匝数对电容残压释放速度的影响最大

快速放电线圈直流电阻值对电容最大反充电压的影响最大

双柱绕制可以提高快速放电线圈的放电性能。研究结果对于35 kV快速放电线圈的设计及优化具有一定的理论参考价值。

Abstract

The shunt capacitor bank is usually equipped with a discharge coil to release the residual voltage of the ca-pacitor

and the saturation speed of the traditional silicon steel core discharge coil is slow. In order to explore themethods to improve the saturation speed of the quick-discharge coil and the release speed of the residual voltage ofthe capacitor

this paper theoretically analyzes the influencing factors of the saturation speed of core and the releasespeed of capacitor voltage. A field-circuit coupled model is established in the finite element analysis software AnsysMaxwell. The effect of various factors is analyzed. In addition

discharge tests are performed on a small-capacity pro-totype to verify the correctness of the simulation model. The results show that the number of turns of the quick-dis-charge coil winding has the greatest effect on the release speed of the residual voltage of the capacitor. The resistanceof the quick-discharge coil has the greatest influence on the maximum reverse charging voltage of the capacitor. Dou-ble-column winding can improve the discharge performance of the fast discharge coil. The research results have sometheoretical reference value for the design and optimization of 35 kV quick-discharge coil.

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