Analysis on Feasibility for Deeply Suppressing Switching Overvoltage in AC UHV Systems

HE Jinliang; WU Jinbo; MENG Pengfei; HU Jun

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Analysis on Feasibility for Deeply Suppressing Switching Overvoltage in AC UHV Systems

更新时间：2025-12-08

- Analysis on Feasibility for Deeply Suppressing Switching Overvoltage in AC UHV Systems
- Vol. 44, Issue 1, Pages: 210-217(2018)
- 作者机构：
  
  清华大学电机工程与应用电子技术系电力系统及发电设备控制和仿真国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 January 2018，
  
  Published：2018
- 稿件说明：
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HE Jinliang, WU Jinbo, MENG Pengfei, et al. Analysis on Feasibility for Deeply Suppressing Switching Overvoltage in AC UHV Systems[J]. 2018, 44(1): 210-217.
DOI：

HE Jinliang, WU Jinbo, MENG Pengfei, et al. Analysis on Feasibility for Deeply Suppressing Switching Overvoltage in AC UHV Systems[J]. 2018, 44(1): 210-217. DOI：

摘要

为了深度限制特高压系统操作过电压、降低特高压设备造价及制造技术瓶颈

以淮南—皖南1 000 kV特高压工程为例

通过电磁暂态计算

对采用两端装设避雷器、合闸电阻与两端避雷器配合、沿线布置一台避雷器以及沿线布置多台避雷器等深度限制过电压方式进行了分析

比较了上述不同方法对操作过电压的限制效果

并从热稳定及老化性能、工频电压耐受特性、能量吸收能力3个方面进行了可行性分析。采用先进的避雷器技术

可将操作过电压水平从1.6U

.7U

降低到1.2U

.3U

（U

=898 kV）

实现深度限制操作过电压的目的。

Abstract

Deeply suppressing the switching overvoltage of UHV systems will reduce the manufacturing cost and technical bottlenecks of UHV power apparatus.Based on the 1 000 kV UHV project from Huainan to Wannan

the switching overvoltages were numerically analyzed.The effects of suppressing the overvoltage for measurements were estimated

such as setting arresters on both ends

cooperation between arresters and closing resistance

setting a set of arresters in the middle of the line

and setting several sets of arresters along the line.The effects of above methods in suppressing the switching overvoltages were compared

and the feasibility was analyzed in aspects such as aging characteristics

the withstand capacity of power frequency overvoltage

and energy absorption capacity.On the baisis of advanced surge arrester technology

we can decrease the ov

ervoltage level from 1.6 U

.7 U

to 1.2 U

.3 U

（U

=898 kV）

to realize the target to deeply suppress the switching overvoltage.

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