A Novel Breaking Strategy for Reduced Response Time of Electromagnetic Contactor by Reverse Voltage Application

Shuhua Fang, Yong Chen, Haimiao Ni, Heyun Lin, Xingang Wang, Binruo Zhu and Yin Zhang
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Shuhua Fang: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Yong Chen: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Haimiao Ni: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Heyun Lin: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Xingang Wang: Electric Power Research Institute, State Grid Shanghai Municipal Electric Power Company, Shanghai 200437, China
Binruo Zhu: Electric Power Research Institute, State Grid Shanghai Municipal Electric Power Company, Shanghai 200437, China
Yin Zhang: Electric Power Research Institute, State Grid Shanghai Municipal Electric Power Company, Shanghai 200437, China

Energies, 2019, vol. 12, issue 5, 1-12

Abstract: This paper proposes a novel breaking strategy for dramatically shortening the response time of a single, stable electromagnetic contactor. A reverse voltage was applied across the excitation coil to increase the decay velocity of the magnetic field in the iron core, leading to a dramatic reduction of the electromagnetic force when the contactor initiated the breaking process. The applied time of the reverse voltage was determined by numerical computation of circuit, magnetic field, and forces. The polarity of source voltage was overturned by controlling switching devices in the bridge drive circuit. A co-simulation coupling magnetic field, machinery, and circuit was carried out using Maxwell and Circuit Editor software. Experimental results are reported to demonstrate the effectiveness of the proposed breaking strategy for shortening the response time of an electromagnetic contactor.

Keywords: breaking strategy; electromagnetic contactor; response time; reverse voltage (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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