A Fuzzy Adaptive Longitudinal Differential Protection of Transformer and Its Simulation Study

doi:10.11985/2015.11.005

Abstract

Abstract:

In order to improve the reliability of transformer longitudinal differential protection, a fuzzy adaptive longitudinal differential protection of transformer is proposed in the paper. When a fault occurs in the protection zone, the fuzzy logic can reduce the resistance coefficient automatically. It results to increase the sensitivity of protection. Besides, when a fault happens out of the protection zone, the fuzzy logic can adaptive increase the resistance coefficient. It enhances the reliability of protection. Finally, the Simulink simulation is done on Matlab. It is result that the proposed fuzzy adaptive longitudinal differential protection of transformer is better than the longitudinal differential protection of transformer.

Key words: Fuzzy adaptive control, longitudinal differential protection, control factor, transformer, Matlab simulation

CLC Number:

TM401

Zong Chaofan , Zeng Zhaowei , Zhao Haili , Dai Qiji . A Fuzzy Adaptive Longitudinal Differential Protection of Transformer and Its Simulation Study[J]. Journal of Electrical Engineering, 2015, 10(11): 33-38.

Figures/Tables 14

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