摘要
本文针对电力电容器故障特点及离线试验存在的弊端,提出了基于运行电压、电容量、不平衡信号等参数作为状态监测量的故障诊断方法,结合相关规程标准设计了故障判别及其预警方案。利用Matlab/Simulink平台对电力电容器内部故障进行了仿真试验,研究了不同故障下电容器各状态量的变化规律,归纳总结了状态量变化与故障之间的关系,提出了基于差分思想的电力电容器故障定位方法,实现了故障的快速判别与定位,有效指导检修计划的制定。
As for the fault feature and the shortcoming of offline test of power capacitor,in this paper,the fault diagnosis method taking such parameters as operation voltage,capacitance,unbalance signal etc.as condition monitoring and measurement are proposed,and the fault identification and early warning scheme is designed normally with combination of related rules.The internal fault of power capacitor is simulated and tested by Matlab/Simulink platform,the variation law of the state quantity of the capacitor under different faults are studied,the relationship between the change of the state quantity and the fault is summarized and the fault locating method of power capacitor based on differential idea is proposed so to achieve fast identification and location of the fault and instruct the draw-up of the maintenance plan.
作者
咸日常
李其伟
孙学锋
王涛
刘兴华
XIAN Richang;LI Qiwei;SUN Xuefeng;WANG Tao;LIU Xinghua(College of Electrical and Electronic Engineering of Shandong University of Technology,Shandong Zibo 255049,China;State Grid Liaocheng Power Supply Company,Shandong Liaocheng 252000,China;State Grid Zibo Power Supply Company,Shandong Zibo 255000,China)
出处
《电力电容器与无功补偿》
北大核心
2018年第3期21-25,共5页
Power Capacitor & Reactive Power Compensation
基金
国网山东省电力公司科技部项目资助(SD18-GC-ZB003-ZH-KJ)
关键词
电力电容器
状态监测
故障诊断
差分原理
预警功能
power capacitorl condition
monitoringl fault diagnosisl
differential principlel
early warning function
作者简介
咸日常（1965-），男，教授，研究方向为电气设备状态检修、变压器安全运行技术。;李其伟（1992-），男，助理工程师，从事电气设备状态检修与维护工作。;孙学锋（1964-），男，高级工程师，从事电力系统运维管理工作。
