Research on Extraction Algorithm of Current Waveform Characteristic Value of Circuit Breaker Opening and Closing Coil

SONG Yakai; ZHANG Yiming; ZHANG Wentao; LI Shaohua; LI Dexiang; ZUO Qi

doi:10.13296/j.1001-1609.hva.2020.01.027

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Research on Extraction Algorithm of Current Waveform Characteristic Value of Circuit Breaker Opening and Closing Coil

更新时间：2025-04-26

- Research on Extraction Algorithm of Current Waveform Characteristic Value of Circuit Breaker Opening and Closing Coil
- High VoltageApparatus Vol. 56, Issue 1, Pages: 181-187(2020)
- 作者机构：
  
  平高集团有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.01.027
  CLC： TM561
- Published：2020
- 稿件说明：
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[1]宋亚凯,张一茗,张文涛,李少华,李得祥,左琪.断路器分合闸线圈电流波形特征值提取算法研究[J].高压电器,2020,56(01):181-187.

SONG Yakai, ZHANG Yiming, ZHANG Wentao, et al. Research on Extraction Algorithm of Current Waveform Characteristic Value of Circuit Breaker Opening and Closing Coil[J]. High voltageapparatus, 2020, 56(1): 181-187.
[1]宋亚凯,张一茗,张文涛,李少华,李得祥,左琪.断路器分合闸线圈电流波形特征值提取算法研究[J].高压电器,2020,56(01):181-187. DOI： 10.13296/j.1001-1609.hva.2020.01.027.

SONG Yakai, ZHANG Yiming, ZHANG Wentao, et al. Research on Extraction Algorithm of Current Waveform Characteristic Value of Circuit Breaker Opening and Closing Coil[J]. High voltageapparatus, 2020, 56(1): 181-187. DOI： 10.13296/j.1001-1609.hva.2020.01.027.

摘要

断路器操动机构分合闸线圈电流波形对分析机构已有或潜在机械故障有重要参考意义

由于受外界环境的影响

许多算法在数据采集及波形特征点提取一致性方面存在一定的不足。文中利用零偏置计算、改进后的均值滤波算法对采集到的原始电流波形数据进行预处理以降低外界因素的影响

同时针对不同的特征点

依据其在波形中的特征进行分类

研究相应的特征点提取算法;在此基础上

搭建了断路器分合闸线圈电流信号采集处理系统并完成了相应算法软件的开发

且以某550 k V断路器配套的液压碟簧操动机构为测试样机对算法进行了验证

获得了一致性较高的波形特征值。

Abstract

The current waveform of the winding mechanism of the circuit breaker operating mechanism has impor-tant reference significance for the existing or potential mechanical failure of the analysis mechanism. Due to the influ-ence of the external environment

many algorithms have certain deficiencies in data acquisition and waveform fea-ture point extraction consistency. In this paper

the zero-bias calculation and the improved mean filtering algorithmare used to preprocess the collected raw current waveform data to reduce the influence of external factors. Accordingto the characteristics of the different feature points

the classification is carried out to study the corresponding Basedon the feature extraction algorithm

the circuit breaker switching coil current signal acquisition and processing sys-tem was built and the corresponding algorithm software was developed. The algorithm was verified by a 550 kV cir-cuit breaker as the test prototype

and the waveform feature values with high consistency were obtained.

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