National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51207014, 71371065]; Hunan Province 100 Talent Program Fund; State Scholarship Fund of China [201308430317]; Scientific Research Foundation for the Doctoral Program of Changsha University of Science and Technology; Natural Science Foundation of Hunan ProvinceNatural Science Foundation of Hunan Province [2015JJ4001, 13JJ6044]
机构署名：
本校为第一且通讯机构
院系归属：
电气与信息工程学院
摘要：
This paper presents a new approach for single phase-earth fault protection in distribution systems. Traditional protection schemes are analyzed and compared with one another for effective fault feature extraction. The maximum-likelihood method is also carried out on several copula functions to find the optimal copula to fit the fault feature data. Then, copula rank correlation is calculated by the optimal copula, and the principal component analysis technique is improved to preprocess and reduce the dimension of the fault data by decomposing the copula rank correlation matrix instead of comput...
