基于非线性互补约束的含DG配电网故障区段定位方法

doi:10.12052/gdutxb.190125

Abstract

Abstract: With the access of distributed generation(DG), the direction of fault overcurrent in the distribution network is no longer unique, and hence the traditional method about fault section location will not be applicable. A nonlinear complementary constrained smoothing model is proposed with a solution method for fault section location in distribution networks with DG. Considering the deficiencies in numerical stability and decision efficiency based on logical relationship of the indirect fault location method, a switch function is constructed based on algebraic relationships that can adapt to multiple DG switching situations. Two simulation algorithms and contrast experiments show that nonlinear complementary constrained smoothing method of fault section location in distribution networks with DG has a high fault tolerance performance and can achieve exact orientation under multi-information distortion, and so it can be seen that our algorithm is superior to intelligence algorithms in numerical stability.

Key words: distributed generation, fault section location, distribution network, nonlinear complementary constrained smoothing model

CLC Number:

TM771

Rong Ze-cheng, Chen Jing-hua, Guo Zhuang-zhi, Xu Jun-ning, Chen You-peng. A Fault Segment Location Method for DG Distribution Network Based on Nonlinear Complementary Constraints[J].Journal of Guangdong University of Technology, 2020, 37(04): 51-58.

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A Fault Segment Location Method for DG Distribution Network Based on Nonlinear Complementary Constraints

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