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Open AccessFeature PaperArticle

Improving the Hybrid Electromagnetic Clamping System by Reducing the Leakage Flux and Enhancing the Effective Flux

1
Department of Automotive Engineering, Honam University, 417 Eodeung-daero, Gwangsan-gu, Gwangju 62399, Korea
2
Department of Electrical Engineering, Honam University, 417 Eodeung-daero, Gwangsan-gu, Gwangju 62399, Korea
*
Author to whom correspondence should be addressed.
Energies 2019, 12(19), 3762; https://doi.org/10.3390/en12193762
Received: 18 July 2019 / Revised: 23 August 2019 / Accepted: 27 August 2019 / Published: 1 October 2019
(This article belongs to the Section Electrical Power and Energy System)
In most industrial fields, mechanical clamping methods are traditionally used to transport heavy loads such as steel structures by fastening the load using bolts and nuts. However, this method can lead to industrial accidents during load transfer and does not consider the weight of the load. Recently, permanent magnet clamping methods have been proposed to prevent such accidents; for example, hybrid electromagnetic clamping systems (H-EMCSs), which combine permanent magnets and electromagnets and can adjust the clamping force according to the load weight. However, few studies have attempted to improve the electromagnetic structure and effective magnetic flux of H-EMCS. Specifically, H-EMCSs control the clamping force using several hybrid electromagnetic modules (H-EMMs); however, the leakage magnetic flux increases with an increasing number of H-EMMs. Therefore, the clamping force should be improved to avoid increasing the leakage magnetic flux. In this study, we propose a novel H-EMM structure and improve its electromagnetic force characteristics by changing the core shape and dimension effect in order to reduce the leakage flux and maximize the effective magnetic flux. Furthermore, we verify the improved electromagnetic force properties by experimentally validating the proposed model. This research can improve the safe and effective transfer of industrial loads. View Full-Text
Keywords: clamping system; permanent magnet; electromagnet; electromagnetic force; leakage flux clamping system; permanent magnet; electromagnet; electromagnetic force; leakage flux
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MDPI and ACS Style

Baek, S.-W.; Yoon, K.-Y. Improving the Hybrid Electromagnetic Clamping System by Reducing the Leakage Flux and Enhancing the Effective Flux. Energies 2019, 12, 3762.

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