Simulation Study on Transient Overvoltage of Dividing Capacitance of CVT at Closing Operation

WANG Danjiang; CUI Zhiming; CAI Bingbing; LIU Jinyou; LIU Chun; LI Zhenbiao

doi:10.14044/j.1674-1757.pcrpc.2014.06.010

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Simulation Study on Transient Overvoltage of Dividing Capacitance of CVT at Closing Operation

更新时间：2024-09-14

- Simulation Study on Transient Overvoltage of Dividing Capacitance of CVT at Closing Operation
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 35, Issue 6, Pages: 46-51(2014)
- 作者机构：
  
  华中科技大学强电磁工程与新技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2014.06.010
  CLC： TM451.2
- Published：2014，
- 稿件说明：
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[1]王丹江,崔志铭,蔡冰冰,刘金友,刘春,李震彪.合闸时CVT分压电容暂态过电压的仿真研究[J].电力电容器与无功补偿,2014,35(06):46-51.

WANG DANJIANG, CUI ZHIMING, CAI BINGBING, et al. Simulation Study on Transient Overvoltage of Dividing Capacitance of CVT at Closing Operation. [J]. Power capacitor & reactive power compensation, 2014, 35(6): 46-51.
[1]王丹江,崔志铭,蔡冰冰,刘金友,刘春,李震彪.合闸时CVT分压电容暂态过电压的仿真研究[J].电力电容器与无功补偿,2014,35(06):46-51. DOI： 10.14044/j.1674-1757.pcrpc.2014.06.010.

WANG DANJIANG, CUI ZHIMING, CAI BINGBING, et al. Simulation Study on Transient Overvoltage of Dividing Capacitance of CVT at Closing Operation. [J]. Power capacitor & reactive power compensation, 2014, 35(6): 46-51. DOI： 10.14044/j.1674-1757.pcrpc.2014.06.010.

摘要

电网合闸时在CVT分压电容上出现的暂态过电压会对CVT分压电容造成一定的损害。使用Matlab/Simulink建立CVT暂态仿真模型

仿真不同合闸相角情况下分压电容暂态过电压;同时研究线路等效电阻、电感值及CVT参数对分压电容上出现的暂态过电压的影响

得到了这些参数对暂态过电压的影响规律。仿真结果对CVT分压电容上暂态过电压的抑制研究、降低分压电容故障率以及CVT运行具有重要价值。

Abstract

The transient overvoltage on the voltage dividing capacitor has a definite harmfulness to the voltage dividing capacitance of CVT at closing operation of power network.The transient simulation model of CVT by the use of Matlab/Simulink is set up to simulate transient overvoltage of the opening capacitor at different closing phase angles and

at the same time

to study influence of equivalent resistance of line

inductance and CVT parameters on the transient overvoltage on the dividing capacitor and the influence rule of those parameters on the transient over voltage is obtained.The simulation result has significant value in mitigation study of dividing capacitance on CVT

reducing fault rate of the dividing capacitor and operation of CVT.

关键词

分压电容暂态过电压合闸相角

Keywords

voltage dividing capacitortransient overvoltageclosing angle

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