Comparison of Dual-Permanent-Magnet-Excited Machines and Surface-Mounted Permanent Magnet Machines in Terms of Force

Minh-Trung Duong, Do-Hyun Kang, Yon-Do Chun, Byung-Chul Woo, Yoon-Sun Lee and Hwang Wook
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Minh-Trung Duong: Energy and Power Conversion Engineering, Unversity of Science and Technology, Daejeon 34113, Korea
Do-Hyun Kang: Electric Motor Research Center, Korea Electrotechnology Research Institute, Changwon 51543, Korea
Yon-Do Chun: Energy and Power Conversion Engineering, Unversity of Science and Technology, Daejeon 34113, Korea
Byung-Chul Woo: Electric Motor Research Center, Korea Electrotechnology Research Institute, Changwon 51543, Korea
Yoon-Sun Lee: School of Electrical and Electronics Engineering, Chung-Ang University, Seoul 17546, Korea
Hwang Wook: Electric Motor Research Center, Korea Electrotechnology Research Institute, Changwon 51543, Korea

Energies, 2019, vol. 12, issue 2, 1-13

Abstract: In this paper, finite element analysis demonstrates the difference between dual-permanent-magnet-excited machines (DPMM) and surface-mounted permanent magnet machines (SPM) in terms of tangential force at the same air gap, diameter, stacking length, and input current. Different from most conventional machines, a novel DPMM has two sets of permanent magnets employed on both stator and rotor. To make a fair comparison, the novel DPMM, based on an original design, is specified to have the same dimensions as a conventional SPM. With the aid of 2D finite element analysis, tangential force generated from the novel DPMM is 167.65% higher than the conventional SPM. To verify the validity of the analyses, a prototype was fabricated and tested. Experiments showed that average deviation was only approximately 1.85%.

Keywords: dual-permanent-magnet-excited machine; surface-mounted permanent magnet machine; force density (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 references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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