摘要
为了提高电气设备运行的稳定性与安全性,降低局部放电危险事故的发生概率,提出了基于宽频特性测量的电气设备局部放电检测。首先分析宽频特性测量以及电气设备局部放电检测基本原理,得到电磁波主要输出过程;通过分析结果建立检测系统框架以及动态检测模型,并计算反馈延时、获取驱动电路函数,为后续输出准确电量结果提供有效保障,结合电气设备工作流程完成最终的系统结构设计,实现基于宽频特性测量的电气设备局部放电在线检测。使用不同方法对四种不同类型局部放电进行检测实验,验证了所提方法的有效程度以及高准确性,可为后续的故障处理工作提供便利条件。
In order to improve the stability and safety of electrical equipment and reduce the probability of partial discharge dangerous accidents, this article presented a method for detecting partial discharge of electrical equipment based on broadband characteristic measurement is proposed. Firstly, the basic principles of broadband characteristic measurement and partial discharge detection of electrical equipment were analyzed to get the main output process of electromagnetic wave. Secondly, the detection system framework and dynamic detection model were built by analysis results, and the feedback delay was calculated to obtain the driving circuit function, so as to provide effective guarantee for subsequent output of accurate results of amount of electricity. Combined with the work flow of electrical equipment, the final system structure design was completed, so that the online detection of partial discharge of electrical equipment based on broadband characteristic measurement was achieved. The system structure is designed to realize on-line PD detection of electrical equipment based on broadband characteristic measurement. Different methods were used to detect four types of partial discharge modes. Thus, the effectiveness and accuracy of the proposed method were verified, which could provide convenience for the following fault processing.
作者
刘鑫
李珉
郭锐强
LIU Xin;LI Min;GUO Rui-qiang(College of Humanities&Information Changchun University of Technology,Changchun Jin 130000,China;China-Russia Institute,Changchun University,Changchun Jilin 130000,China)
出处
《计算机仿真》
北大核心
2020年第5期379-383,共5页
Computer Simulation
关键词
绝缘系统
宽频特性测量
电气设备局部放电
反馈延时
Insulation system
Broadband characteristic measurement
Partial discharge of electrical equipment
Feedback delay
