Analysis of Waveform Parameters for Oscillating Lightning Impulse Voltage

LI Xiao; ZHANG Liang; WU Xiaogui; HUANG Yanguang; LI Junhao

doi:10.13296/j.1001-1609.hva.2018.12.036

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Analysis of Waveform Parameters for Oscillating Lightning Impulse Voltage

更新时间：2025-04-26

- Analysis of Waveform Parameters for Oscillating Lightning Impulse Voltage
- High VoltageApparatus Vol. 54, Issue 12, Pages: 238-244(2018)
- 作者机构：
  
  1. 广州供电局有限公司电力试验研究院
  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.2018.12.036
  CLC： TM595
- Published：2018
- 稿件说明：
移动端阅览
[1]李晓,张亮,吴晓桂,黄炎光,李军浩.振荡雷电冲击电压波形参数分析[J].高压电器,2018,54(12):238-244.

LI Xiao, ZHANG Liang, WU Xiaogui, et al. Analysis of Waveform Parameters for Oscillating Lightning Impulse Voltage[J]. High voltageapparatus, 2018, 54(12): 238-244.
[1]李晓,张亮,吴晓桂,黄炎光,李军浩.振荡雷电冲击电压波形参数分析[J].高压电器,2018,54(12):238-244. DOI： 10.13296/j.1001-1609.hva.2018.12.036.

LI Xiao, ZHANG Liang, WU Xiaogui, et al. Analysis of Waveform Parameters for Oscillating Lightning Impulse Voltage[J]. High voltageapparatus, 2018, 54(12): 238-244. DOI： 10.13296/j.1001-1609.hva.2018.12.036.

摘要

为提高气体绝缘组合电器（gas insulated switchgear

GIS）可靠性

现场冲击耐压试验至关重要

近年来

振荡雷电冲击电压是该试验常用电压波形。考虑到冲击电压波形随发生器参数及负载变化

它们之间的关系需要从理论上认识清楚。文中根据放电等效电路

建立关于输出电压的三阶微分方程

解得振荡雷电冲击电压及其包络线的时域表达

提取各波形参数

研究它们与负载电容、回路电阻、调波电感之间的关系。结果表明

振荡频率和波头时间由电感和回路电容决定;半峰值时间受波头电阻、波尾电阻和负载电容共同影响;发生器效率随负载电容的增大而急剧下降。当冲击电压发生器参数设计合适时

即使负载电容在大范围内变化

输出振荡冲击电压波形也总能满足标准要求。研究成果对GIS现场冲击耐压试验中电压波形的调节具有很好的指导作用。

Abstract

To improve the reliability of gas insulated switchgear（GIS）

field impulse voltage withstand test is an important step.In recent years

oscillating lighting impulse voltage（OLI）has been commonly used in field test.Considering that OLI waveform varies with parameters of generator and load capacitance of GIS

we need to clarify the relationship between them theoretically.This paper establishes the third-order differential equation of output voltage based on the equivalent circuit.The time-domain expressions of OLI and its envelope are obtained.Waveform parameters are extracted

and the relationship between these waveform parameters and load capacitance

resistance

inductance are analyzed respectively.The results show that the oscillating frequency and front time are decided by inductance and capacitance of the circuit.The time to half-value are affected both by resistance and load capacitance.The generator efficiency decreases rapidly with the increase of the load capacitance.When the impulse voltage generator is designed with appropriate circuit parameters

even if the load capacitance varies in a wide range

the OLI waveform always meets the requirements of standard.The research achievements will provide good guide for waveform adjustment in field impulse voltage withstand test of GIS.

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