Adaptive Protection System for Distribution Network Considering Grid Connection of Distributed Generation

doi:10.3969/j.issn.1006-2475.2023.09.019

Abstract

Abstract: To further improve the rapidness of adaptive protection of distribution network considering distributed generation grid connection， an adaptive protection system for distribution network considering distributed generation grid connection is proposed. The improved microgenetic algorithm is utilized to optimize and update the settings of protective relays in real time. In order to verify the effectiveness of the proposed adaptive protection system， a simulation database is built by Simulink/MATLAB platform for the simulation of multiple fault cases. The effect of the proposed adaptive protection system on fault line removal in the simulation database is compared with that of other two adaptive protection systems. The comparison results show that the fault line removal speeds obtained by the proposed adaptive protection system are significantly faster than those obtained by the other two adaptive protection systems.

Key words: , adaptive protection； distribution network； distributed generation； microgenetic algorithm； algorithm improving

CLC Number:

TP391

LIU Xian-zhuo, DENG Wei-si, XIE En-yan. Adaptive Protection System for Distribution Network Considering Grid Connection of Distributed Generation[J]. Computer and Modernization, 2023, 0(09): 120-126.

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