Study on Algorithm of Resistive Current of MOA

CAO Hongliang; YANG Zhongjiang; HUA Rongqiang; YANG Haishan; REN Jing

doi:10.13296/j.1001-1609.hva.2015.07.006

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Study on Algorithm of Resistive Current of MOA

更新时间：2025-04-26

- Study on Algorithm of Resistive Current of MOA
- High VoltageApparatus Vol. 51, Issue 7, Pages: 32-36(2015)
- 作者机构：
  
  1. 南京信息工程大学中国气象局气溶胶与云降水重点开发实验室
  2. 南京信息工程大学大气物理学院
  3. 南京市溧水气象局
  4. 宁夏回族自治区石嘴山市气象局
  5. 中国民用航空宁波空中交通管理站
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.07.006
  CLC： TM862
- Published：2015
- 稿件说明：
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[1]曹洪亮,杨仲江,华荣强,杨海山,任婧.改进的MOA阻性电流算法研究[J].高压电器,2015,51(07):32-36.

CAO Hongliang, YANG Zhongjiang, HUA Rongqiang, et al. Study on Algorithm of Resistive Current of MOA[J]. High voltageapparatus, 2015, 51(7): 32-36.
[1]曹洪亮,杨仲江,华荣强,杨海山,任婧.改进的MOA阻性电流算法研究[J].高压电器,2015,51(07):32-36. DOI： 10.13296/j.1001-1609.hva.2015.07.006.

CAO Hongliang, YANG Zhongjiang, HUA Rongqiang, et al. Study on Algorithm of Resistive Current of MOA[J]. High voltageapparatus, 2015, 51(7): 32-36. DOI： 10.13296/j.1001-1609.hva.2015.07.006.

摘要

基波电压作用下产生的基波阻性电流ir1和3次阻性电流ir3可以很好地反映MOA工作状态。传统容性电流补偿算法及其改进算法没有考虑谐波电压作用

从理论上产生一定误差。为解决此问题

文中在改进的容性电流算法基础上

提出新的等效电阻修正算法

消除一部分谐波对阻性电流的影响

从而提高基波阻性电流和3次阻性电流的精度。MALTAB仿真分析

显示文中算法有效降低了基波阻性电流及3次阻性电流的误差

其中3次阻性电流减少了近一半

说明修正算法有效消除了谐波对阻性电流影响

提高了MOA预判的准确性。

Abstract

The fundamental harmonic resistive current ir1 and the third harmonic resistive current ir3 generated by the fandamental voltage can reflect the operation state of metal oxide arrester（MOA）. The traditional MOA capacitive current compensation algorithm and its improved algorithm didn’t take the harmonic voltage into consideration

so it will produce errors in theory. In order to resolve the problem

and on the basis of traditional algorithm

the new equivalent resistance algorithm is proposed in this paper so that a part influence of harmonic voltage on the resistive current is eliminated and the precision of ir1 and ir3is improved. The results simulated by MATLAB show that the error of ir1 and ir3can be reduced. Especially that the ir3 is reduced by half

and the effectiveness of the modified algorithm is verified

the accuracy of MOA fault diagnosis is improved.

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Related Institution

Key Meteorological Disaster Laboratory of Ministry of Education Established Jointly by Provincial Department,Nanjing University of Information Science & Technology

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