Modified Capacitive Current Compensation Method of MOA Based on Hanning-windowed Interpolation

XU Zhi-niu; LU Fang-cheng; ZHAO Li-juan; LI He-ming

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Modified Capacitive Current Compensation Method of MOA Based on Hanning-windowed Interpolation

更新时间：2025-04-26

- Modified Capacitive Current Compensation Method of MOA Based on Hanning-windowed Interpolation
- High VoltageApparatus Issue 6, Pages: 453-455(2006)
- 作者机构：
  
  1. 华北电力大学电气与电子工程学院
  2. 华北电力大学电气与电子工程学院河北保定071003
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM862
- Published：2006
- 稿件说明：
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[1]徐志钮,律方成,赵丽娟,李和明.基于加汉宁窗插值的金属氧化物避雷器改进容性电流补偿法[J].高压电器,2006(06):453-455.

XU Zhi-niu, LU Fang-cheng, ZHAO Li-juan, et al. Modified Capacitive Current Compensation Method of MOA Based on Hanning-windowed Interpolation[J]. High voltageapparatus, 2006, (6): 453-455.
[1]徐志钮,律方成,赵丽娟,李和明.基于加汉宁窗插值的金属氧化物避雷器改进容性电流补偿法[J].高压电器,2006(06):453-455. DOI：

XU Zhi-niu, LU Fang-cheng, ZHAO Li-juan, et al. Modified Capacitive Current Compensation Method of MOA Based on Hanning-windowed Interpolation[J]. High voltageapparatus, 2006, (6): 453-455. DOI：

摘要

改进的容性电流补偿法能减轻电网谐波给金属氧化物避雷器阻性电流测量造成的误差

有效地获得MOA的阻性电流。但DFT在非同步采样时存在频谱泄漏和栅栏效应

影响了计算所得阻性电流的准确性。为了解决这个问题

提出了基于加Hanning窗插值的改进容性电流补偿法

有效减轻了非同步采样给阻性电流测量带来的误差

提高了根据阻性电流基波和三次谐波判断MOA故障方法的有效性。仿真分析验证了提出算法的有效性。

Abstract

The error

caused by power system harmonics

in measuring resistive current of metal oxide surge arrester can be lessened by improved capacitive current compensation method.And resistive current of MOA can be acquired effectively in synchronous sampling.DFT has spectrum leakage and fence effect during asynchronous sampling

which influence the accuracy of measured resistive current of MOA.For resolving this problem

modified capacitive current compensation method based on Hanning-windowed interpolation is proposed in this paper.The error of resistive current

caused by asynchronous sampling

is decreased effectively

and the reliability of MOA fault diagnosis based on fundamental harmonic and third harmonic of resistive current is improved.Effectiveness of the proposal algorithm is verified by the simulation analysis result.

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Related Institution

Lanzhou Jiaotong University

618000

德阳电业局 400044

德阳电业局

重庆大学

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