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author:

Zhang, C. (Zhang, C..) [1] | Xu, Z. (Xu, Z..) [2]

Indexed by:

Scopus PKU CSCD

Abstract:

In order to reduce the temperature rise of the coil when intelligent AC contactors applied in frequently operated occasion, this paper proposed a cascade control strategy based on flux linkage feedback which adjusts the coil current according to the flux linkage and realizes the self-adjustment of the coil current during the closure of intelligent AC contactors. In the cascade control strategy, the average excitation voltage, coil current and coil resistance are used to calculate the flux linkage of electromagnetic mechanism. Then the reference of coil current is adjusted according to the flux linkage, so that the coil current decreased gradually during the closure until the movable and fixed core are closed. The effectiveness of the cascade control strategy was verified by three different specifications of double E-type AC contactors. Then one kind of them was taken for example to compare with the constant current control strategy. The results show that the cascade control strategy can make the contactors close quickly and realize the self-regulation of the coil current at the same time, which can also reduce the temperature rise of coil in the frequently operated occasion. © 2020 Chin. Soc. for Elec. Eng.

Keyword:

Cascade control; Constant current control; Flux linkage; Intelligent AC contactor

Community:

  • [ 1 ] [Zhang, C.]Fujian Province Key Laboratory of New Energy Generation and Power Conversion, Fuzhou University, Fuzhou, Fujian Province 350108, China
  • [ 2 ] [Xu, Z.]Fujian Province Key Laboratory of New Energy Generation and Power Conversion, Fuzhou University, Fuzhou, Fujian Province 350108, China

Reprint 's Address:

  • [Xu, Z.]Fujian Province Key Laboratory of New Energy Generation and Power Conversion, Fuzhou UniversityChina

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Source :

Proceedings of the Chinese Society of Electrical Engineering

ISSN: 0258-8013

Year: 2020

Issue: 4

Volume: 40

Page: 1329-1338

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 11

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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