Electromagnetic Characterization of Permanent Magnet Eddy Current Structures Based on Backplane Distance Adjustment

Author:

Wu Yipeng1ORCID,Wang Teng1234,Song Tao1234,Guo Wenxiao1234ORCID

Affiliation:

1. China Coal Research Institute, Beijing 100013, China

2. CCTEG Taiyuan Research Institute Co., Ltd., Taiyuan 030006, China

3. Shanxi Tiandi Coal Mining Machinery Co., Ltd., Taiyuan 030006, China

4. China National Engineering Laboratory for Coal Mining Machinery, Taiyuan 030006, China

Abstract

To address the problem of problematic spray design inside mining anchor-digging equipment, a switching seal using a permanent magnet eddy current drive is initially presented here. The layer model of the permanent magnet eddy current structure is established, the subdomain analysis model is introduced, the permanent magnet eddy current structure is divided into six regions along the axial direction, and the boundary equations are established at the interfaces of each region. The vector magnetic potential equations in each region are deduced, along with the electromagnetic torque and axial force equations. The computational results are compared and analyzed with the results of finite element simulation, verifying the accuracy of the theoretical model. The design of experiments is used to verify the feasibility of the switching seal using the permanent magnet eddy current structure.

Funder

Chinese National Key R&D Program

Shanxi Province patent conversion project

Scientific Research Projects of Shanxi Tiandi Coal Mining Machinery Company Ltd

Special Project of Science and Technology innovation venture capital of Tiandi Technology Co., LTD

Shanxi Province key research and development project

Publisher

MDPI AG

Reference19 articles.

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4. Analytical Modeling of Axial-Flux Permanent Magnet Eddy Current Couplings with a Slotted Conductor Topology;Dai;IEEE Trans. Magn.,2016

5. Speed Regulation Characteristics of Slotted Disc-Type Asynchronous Magnetic Coupler;Yang;Electr. Mach. Control. J.,2021

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