Research on Mechanical Fault Mechanism Analysis and Feature Extraction Technology Based on Low Voltage DC Circuit Breaker

YE Yijun; GUO Jiajun; ZHANG Zijian; LYU Wenjie; AI Zeguang; CUI Peng; TAN Jiaming; YANG Aijun; WANG Xiaohua; RONG Mingzhe

doi:10.13296/j.1001-1609.hva.2024.02.002

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Research on Mechanical Fault Mechanism Analysis and Feature Extraction Technology Based on Low Voltage DC Circuit Breaker

Research & Analysis | 更新时间：2025-04-26

- Research on Mechanical Fault Mechanism Analysis and Feature Extraction Technology Based on Low Voltage DC Circuit Breaker
- High Voltage Apparatus Vol. 60, Issue 2, Pages: 26-37(2024)
- 作者机构：
  
  1.西安交通大学电力设备电气绝缘国家重点实验室，西安　 710049
  2.华能河南中原燃气发电有限公司，河南　驻马店　 463000
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(U2166214);Key R&D Program of Shaanxi(2022GXLH-01-11);Natural Science Basic Research Program of Shaanxi(2023-JC-JQ-41);China Postdoctoral Science Foundation(2022M712510);State Key Laboratory of Electrical Insulation and Power Equipment(EIPE23111;EIPE23408;EIPE23314)
- DOI：10.13296/j.1001-1609.hva.2024.02.002
  CLC：
- Received：16 October 2023，
  
  Revised：09 December 2023，
  
  Published：16 February 2024
- 稿件说明：
移动端阅览
YE Yijun, GUO Jiajun, ZHANG Zijian, et al. Research on Mechanical Fault Mechanism Analysis and Feature Extraction Technology Based on Low Voltage DC Circuit Breaker[J]. High voltage apparatus, 2024, 60(2): 26-37.
DOI：

YE Yijun, GUO Jiajun, ZHANG Zijian, et al. Research on Mechanical Fault Mechanism Analysis and Feature Extraction Technology Based on Low Voltage DC Circuit Breaker[J]. High voltage apparatus, 2024, 60(2): 26-37. DOI： 10.13296/j.1001-1609.hva.2024.02.002.

摘要

直流断路器是轨道交通直流牵引供电系统的核心保护设备，是直流供电系统安全运行的保证，确保其稳定运行至关重要。文中针对直流牵引断路器机械结构特点，进行了断路器机械故障模拟实验，选取分合闸线圈电流及振动信号作为监测物理量，研究其机械故障机理与特征提取方法。研制信号采集硬件装置，搭建直流断路器机械故障模拟实验平台，模拟6种常见的机械故障。采集不同故障下的线圈电流及振动信号进行特征提取后进行故障机理分析，为低压直流断路器机械故障诊断提供理论支撑。

Abstract

DC circuit breaker is the core protection equipment of DC traction power supply system of rail transit and the guarantee of safe operation of DC power supply system

it is therefore very important to ensure its stable operation. As for the mechanical structure characteristics of DC traction circuit breaker in this paper

the mechanical fault simulation experiment of circuit breaker is performed. The current and vibration signals of the opening and closing coils are selected as the monitoring physical quantities to study its mechanical fault mechanism and feature extraction method. The hardware device of signal acquisition is developed

and the experimental platform of mechanical fault simulation of DC circuit breaker is set up to simulate six kinds of common mechanical faults. The coil current and vibration signals under different faults are collected for feature extraction and fault mechanism analysis

which can provide theoretical support for mechanical fault diagnosis of low-voltage DC circuit breaker.

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