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논문 리스트

2023
Two-Level 전압 인가에 의한 전자접촉기 구동 전력 저감 Reduce Power of Magnetic Contactor using the Two-Level Apply Voltage
한국산업융합학회
박성준 외 1명
논문정보
Publisher
한국산업융합학회논문집
Issue Date
2023-10-31
Keywords
-
Citation
-
Source
-
Journal Title
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Volume
26
Number
5
Start Page
925
End Page
936
DOI
https://doi.org/10.21289/KSIC.2023.26.5.925
ISSN
1226833x
Abstract
Currently, due to the rapid increase in power demand and the increase in capacity of power converters, the capacity of electromagnetic contactors is also increasing, and the burden on SMPS for the power that can drive them is increasing. Although the initial starting operation current of an electromagnetic contactor is significantly larger than the holding current for maintaining contact, most electromagnetic contactors apply the same voltage as the initial starting operation. An electromagnetic contactor must continuously apply a holding current to maintain the contact point, and the larger the capacity, the larger the current must be applied. This paper proposes a two-level magnetic contactor drive that allows setting the initial starting operation current to fully attach the contact point of the magnetic contactor and the holding current to maintain subsequent operation. In addition, a low-cost drive topology of analog and digital methods was proposed for various field applications, and an algorithm based on the ripple of the excitation current was proposed to determine whether the magnetic contactor was opened or closed without using a separate contact point. The feasibility of the proposed method was proven through Psim simulation experiments.

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이름 소속
박성준 전기공학과