 Breaking time control of back-to-back double E-type alternating current contactorLei Qi, Ming Zong, Shuyi Hao and Xuejie Wang International Journal of Distributed Sensor Networks, 2020, vol. 16, issue 6, 1550147720928892 Abstract: The arc generated by breaking the main circuit exacerbates the ablation of the contact, which affects the life of the contactor seriously. By controlling the breaking time of the contactor and making contact break in the optimum time zone are the effective ways to weaken the arc. In this article, the contact movement characteristic is concerned directly in order to control the contact breaking time. A back-to-back double-E alternating current contactor is proposed, and its structural parameters are optimized by particle swarm optimization algorithm. The mathematical model of circuit and magnetic is established. A closed-loop control system based on velocity feedback is proposed. The simulation results show that the designed contactor and the proposed control method are correct, and the actual velocity curve of the contact is consistent with the planned motion curve. It can realize zero-crossing breaking of the main circuit to achieve the effect of no-arc breaking. Keywords: Back to back; contactor; mathematical model; swarm optimization algorithm; movement characteristics; closed-loop control; breaking time; no arc (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:sae:intdis:v:16:y:2020:i:6:p:1550147720928892 Access Statistics for this article More articles in International Journal of Distributed Sensor Networks |
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