Electric Power ›› 2016, Vol. 49 ›› Issue (11): 31-35.DOI: 10.11930/j.issn.1004-9649.2016.11.031.05

• Power System • Previous Articles     Next Articles

Break Fault Diagnosis Method of Grounding Grids Based on Regularization

ZHU Liwei1, SHEN Xiaoming1, YANG Fan2, LIU Xingping1, WANG Xiaoyu1, LIU Kai2   

  1. 1. State Grid Zhejiang Electric Power Corporation Research Institute, Hangzhou 310014, China;
    2. State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China;
  • Received:2016-08-15 Online:2016-11-10 Published:2016-12-09
  • Supported by:
    This work is supported by National Natural Science Foundation of China (No. 51477013) and Graduate Student Research Innovation Project (No. CYS14012).

Abstract: In order to detect break fault of grounding grids, a diagnosis method based on regularization is proposed. This method adds a penalty factor to fault diagnosis function in order to solve ill conditioned problem in reverse fault diagnosis. Experimental results show that proposed method can effectively detect single or multiple break fault in grounding grids, which validate feasibility and effectiveness of proposed method.

Key words: substation, grounding grids, fault diagnosis, break fault branch, regularization, fault detection

CLC Number: