基于拟合优度检验法和支持向量机的断路器分合闸回路故障辨识研究  

i.Fault Identification of Circuit Breaker Switching Circuit Based on Goodness of Fit Test and Support Vector Machine

作　　者：陈亚林 茹秋实 王胜利 龚辉 张振 

机构地区：[1]国网甘肃省电力公司检修公司,甘肃兰州730070

出　　处：《自动化与仪器仪表》2017年第12期236-239,共4页Automation & Instrumentation

摘　　要：分合闸线圈是断路器的关键元件之一,保证其正常工作对稳定电力系统运行意义重大。鉴于分合闸线圈的异常征兆会充分呈现在回路电流中,提出对分合闸回路电流作特征量分析以达成故障识别的目的。首先对分合闸线圈回路的工作特性进行阐述,其次对分合闸线圈电流信号的采集和预处理展开研究,再次基于故障模拟对特征量萃取作分析,最后依托拟合优度检验法和支持向量机完成不同故障的精确识别。The split closing coil is one of the key components of the circuit breaker. It is of great significance to ensure its normal op- eration and to stabilize the operation of the power system. Sinee the abnormal sign of the switching coil can be fully presented in the loop current, the characteristic value of the current in the switching circuit is analyzed to achieve the purpose of fault identification. The working characteristics of the first closing coil circuit are expounded, then closing coil current signal acquisition and preproeessing of fault simulation analysis on again feature extraction based on accurate identification, finally relying on the goodness of fit method and the support vector machine to complete different faults.

关 键 词：断路器 分合闸回路 拟合优度检验 支持向量机 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]