Ultrasonic detection system for gas insulated switchgear partial discharge based on optical fiber transmission

被引：0

作者：

Liu Y. ^{[1
]}

Li Y. ^{[2
]}

Huang S. ^{[1
]}

Zhao T. ^{[1
]}

机构：

[1] Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding

[2] Wuxi Brach of Jiangsu Electric Power Maintenance Brach Company, Wuxi

来源：

Gaodianya Jishu/High Voltage Engineering | 2016年 / 42卷 / 01期

关键词：

Digital signal; Gas insulated switchgear; Optical fiber; Partial discharge; Ultrasonic detection method; Virtual instrument;

D O I：

10.13336/j.1003-6520.hve.2016.01.024

中图分类号：

学科分类号：

摘要：

In order to detect and analyze the insulation status of gas insulated switchgear (GIS), combing with the optical fiber transmission technology, digital signal processing technology, and ultrasonic detection technology, we designed a GIS partial discharge (PD) ultrasonic detection system based on optical fiber transmission and LabVIEW virtual instrument. The system consists of ultrasonic sensors, remote high-speed acquisition module, local module, and PC software system, and it achieves high-speed and reliable collection of PD signals through optical transmission. The PC software system is developed on the basis of accurate extraction of PD signals, and the communication between PC and PLC adopts the UDP communication protocol. The system can collect and store ultrasonic PD signals, and it can locate faults in real time through analyzing the distribution of the signals in both time domain and frequency domain. We tested the proposed system in a number of substations over China, and the results proved the system to be effective in detecting PDs in GIS. © 2016, High Voltage Engineering Editorial Department of CEPI. All right reserved.

引用

页码：186 / 191

页数：5

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