Characteristic Analysis and Finite Element Calculation Method for Shell Circulating Current of 252 kV GIS Substation

ZHANG Hao; LIU Yapei; XU Kaihong; LIU Shuhan; HUANG Dongdong; LI Jiangtao

doi:10.13296/j.1001-1609.hva.2020.12.007

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Characteristic Analysis and Finite Element Calculation Method for Shell Circulating Current of 252 kV GIS Substation

更新时间：2025-04-26

- Characteristic Analysis and Finite Element Calculation Method for Shell Circulating Current of 252 kV GIS Substation
- High VoltageApparatus Vol. 56, Issue 12, Pages: 51-58(2020)
- 作者机构：
  
  1. 平高集团有限公司
  2. 西安交通大学电力设备电气绝缘国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.12.007
  CLC： TM63
- Published：2020
- 稿件说明：
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[1]张豪,刘亚培,徐凯宏,刘书瀚,黄冬冬,李江涛.252 kV GIS变电站外壳环流特性分析及有限元计算方法[J].高压电器,2020,56(12):51-58.

ZHANG Hao, LIU Yapei, XU Kaihong, et al. Characteristic Analysis and Finite Element Calculation Method for Shell Circulating Current of 252 kV GIS Substation[J]. High voltageapparatus, 2020, 56(12): 51-58.
[1]张豪,刘亚培,徐凯宏,刘书瀚,黄冬冬,李江涛.252 kV GIS变电站外壳环流特性分析及有限元计算方法[J].高压电器,2020,56(12):51-58. DOI： 10.13296/j.1001-1609.hva.2020.12.007.

ZHANG Hao, LIU Yapei, XU Kaihong, et al. Characteristic Analysis and Finite Element Calculation Method for Shell Circulating Current of 252 kV GIS Substation[J]. High voltageapparatus, 2020, 56(12): 51-58. DOI： 10.13296/j.1001-1609.hva.2020.12.007.

摘要

GIS在投入运行时外壳产生的环流会引起设备发热

加剧设备绝缘老化

损坏测量保护设备

降低供电可靠性

因此具有重要的研究意义。文中以某252 kV GIS变电站为研究对象

首先

文中详细地分析了GIS变电站内的设备结构

提出了一种GIS断路器外壳的环流模型;其次

文中提出了基于场—路耦合的GIS断路器外壳环流的有限元计算方法

并与电磁暂态仿真软件EMTP的计算结果进行了对比

验证了所提计算方法的准确性;最后

文中搭建了252 kV GIS变电站级仿真模型

计算在多种工况下GIS变电站外壳感应电压和环流分布情况

对实际变电站的环流计算和接地校核具有一定的指导意义。

Abstract

When GIS is put into operation

the shell circulating current will cause heating

aggravate insulation aging

damage the measurement and protection equipment and reduce power supply reliability.Therefore

it has important research significance.In this paper

a 252 kV GIS substation is taken as the research object.Firstly

the equipment structure in the GIS substation is analyzed in detail

and a shell circulating current model of GIS circuit breaker is proposed.Secondly

the finite element calculation method of GIS circuit breaker shell circulating current based on field circuit coupling is proposed.The calculated results are compared with the electromagnetic transient simulation software EMTP

which verifies the accuracy of the proposed method.Finally

a 252 kV GIS substation-level simulation model is built to calculate the induced voltage and shell circulation current of GIS under various working conditions

which has certain guiding significance for shell circulation current calculation and grounding check of actual substation.

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