Fault Location Method and Simulation Analysis of Parallel Compensating Capacitors

Daquan Du, Na Zheng, Zhiming Su

Hebei Electric Power Research Institute, Shijiazhuang of Hebei, China.
Hebei Shijiazhuang Power Supply Company, Shijiazhuang of Hebei, China.
School of Electrical and electronic engineering, North China Electric Power University, Baoding of Hebei, China.

DOI: 10.4236/epe.2013.54B111                

Abstract

At present, the operational parallel compensating capacitors can only through the protection action for the information, so we can‘t location the fault capacitor. In order to obtain every parallel capacitor running status information and meanwhile according to internal structure and the operation mode of film capacitor, this paper established the physical model on the single capacitor and the capacitors and simulated different forms of capacitor fault model and calculated currents changes which flow through the capacitor in every group. According to the above situation, we established fault criterion matrix of capacitors. The simulation results show that the fault criterion matrix can reflect capacitor running state information accurately, and it positioned fault capacitor effectively.

Keywords

Parallel Capacitor; Physical Model; Fault Location; Fault Matrix

Conflicts of Interest

The authors declare no conflicts of interest.

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