Adaptive Closed-loop Control System of Phase Selection Circuit Breakers

doi:10.11930/j.issn.1004-9649.2013.9.81.4

Abstract

Abstract: In order to solve the problems in the traditional phase selection circuit breaker’s control system, such as complex relationships among compensation parameters, which vary randomly and dispersedly, an adaptive feedback closed-loop control scheme was proposed, which was combined with a new type of magnetic bodies. The hardware and software systems were designed according to the PID fuzzy control principle, and the new phase selection circuit breaker was tested under conditions of varied temperature, SF₆ gas density and control system voltage. The results show that the closed-loop control system can effectively track the changes in temperature, SF₆ gas density and control voltage with an error smaller than ± 1 ms.

Key words: distribution system, phase selection circuit breaker, adaptive closed-loop control, magnetic switching mechanism

CLC Number:

TM76

WANG Hai-yan, YUAN Duan-lei, HE Zhou. Adaptive Closed-loop Control System of Phase Selection Circuit Breakers[J]. Electric Power, 2013, 46(9): 81-85.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2013.9.81.4

https://www.electricpower.com.cn/EN/Y2013/V46/I9/81

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