A Study on the Mobile Partial Discharge Locating System

Yan Yang, Lin Tang, Yue Hu, Qian Wang, Gaolin Wu, Tianchen Zhang, Xiuchen Jiang

Electric Power Research Institute of Chongqing, Chongqing, P.R.China.
Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University, Shanghai, P.R.China.

DOI: 10.4236/epe.2013.54B113                

Abstract

This paper studies on the Partial Discharge (PD) Locating System based on a mobile array of ultra-high frequency (UHF) antennas and a vehicle-mounted PD locating system is established. The system consists of omni-directional antenna array for receiving UHF PD signals, a pre-processing circuit for signal amplification and filtering and the high- speed acquisition and control unit of PD pulse signals. The developed locating system is able to simultaneously record the PD pulse signals received by the antenna array. By assessing the time difference of arrival (TDOA), the two-dimensional hyperbolic locating model quickly locates the PD source. Based on the software developed by LabVIEW, it is also possible to display, store and further analyze the acquired signals. Through the simulation of PD signals and the locating experiments with the system, it is proved that the PD locating system possesses the features of rapidity and precision in determining the bearing of PD source.

Keywords

Partial Discharge; Locating System; Two-Dimensional Model; Mobile

Conflicts of Interest

The authors declare no conflicts of interest.

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