Title :
Application of fault line selection device in small current grounded system based Evidence theory in Beijing Electric Power Company
Author :
Zhang Yanyan ; Zhou Zuochun ; Li Huachun ; Qi Zheng
Author_Institution :
Beijing Electr. Power Res. Inst., Beijing, China
Abstract :
This paper discusses an method based on evidence- theory for the small current comprehensive line selection, this method obtain the signal of small current grounded occurred and use the phase comparison method, Wavelet method, the first semi-continuous wave method and other methods to calculate and determine continuously. Through the evidence fusion rules to fuse Information. Ultimately determine the fault line. Greatly improved the accuracy of the judgement of the fault line. These devices used in the Beijing Electric Power Company for a period of time and be proved effective.
Keywords :
earthing; electricity supply industry; fault currents; fault diagnosis; wavelet transforms; Beijing electric power company; evidence fusion rules; evidence theory; fault line selection device; information fusion; phase comparison method; semicontinuous wave method; small current grounded system; wavelet method; Accuracy; Bridge circuits; Reliability; Transient analysis; evidence theory; information Fusion; small current grounded system;
Conference_Titel :
Advanced Power System Automation and Protection (APAP), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-9622-8
DOI :
10.1109/APAP.2011.6180640
