Simulation Calculation and Analysis of a Ferroersonance Case Caused by PT in GIS

CHEN Lin; LIU Juan; LI Shuang

doi:10.13296/j.1001-1609.hva.2019.06.036

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Simulation Calculation and Analysis of a Ferroersonance Case Caused by PT in GIS

更新时间：2025-04-26

- Simulation Calculation and Analysis of a Ferroersonance Case Caused by PT in GIS
- High VoltageApparatus Vol. 55, Issue 6, Pages: 242-246(2019)
- 作者机构：
  
  1. 国网陕西省电力公司宝鸡供电公司
  2. 国网辽宁省电力有限公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.06.036
  CLC： TM451
- Published：2019
- 稿件说明：
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[1]陈琳,刘娟,李爽.GIS内PT铁磁谐振仿真计算与分析[J].高压电器,2019,55(06):242-246.

CHEN Lin, LIU Juan, LI Shuang. Simulation Calculation and Analysis of a Ferroersonance Case Caused by PT in GIS[J]. High voltageapparatus, 2019, 55(6): 242-246.
[1]陈琳,刘娟,李爽.GIS内PT铁磁谐振仿真计算与分析[J].高压电器,2019,55(06):242-246. DOI： 10.13296/j.1001-1609.hva.2019.06.036.

CHEN Lin, LIU Juan, LI Shuang. Simulation Calculation and Analysis of a Ferroersonance Case Caused by PT in GIS[J]. High voltageapparatus, 2019, 55(6): 242-246. DOI： 10.13296/j.1001-1609.hva.2019.06.036.

摘要

文中以某电厂发生的PT铁磁谐振为例

分析了谐振原因

对其可能存在铁磁谐振的工况进行了仿真计算

并提出了可行的消谐措施。研究表明:对于中性点不接地系统

PT应选用额定电压因数为"1.9倍、8 h";消弧线圈补偿度宜在-（5%～20%）之间。

Abstract

This paper takes the PT ferroresonance in a power plant as an example

analyses the reasons of resonance

simulates the possible working conditions of ferroresonance

and put forwards the feasible measures for harmonic elimination. The research shows that for neutral ungrounded system

PT should choose rated voltage factor of 1.9 timesand 8 hours

and the compensation degree of arc suppression coil should be between -（5%～20%）.

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武汉大学电气工程学院湖北武汉430072

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