Improvement of Tubular Permanent Magnet Machine Performance Using Dual-Segment Halbach Array

Minh-Trung Duong, Yon-Do Chun and Deok-Je Bang
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Minh-Trung Duong: Energy and Power Conversion Engineering, University of Science and Technology, Daejeon 34113, Korea
Yon-Do Chun: Energy and Power Conversion Engineering, University of Science and Technology, Daejeon 34113, Korea
Deok-Je Bang: Electric Motor Research Center, Korea Electrotechnology Research Institute, Changwon 51543, Korea

Energies, 2018, vol. 11, issue 11, 1-10

Abstract: In this paper, a modification of the dual-segment permanent magnet (PM) Halbach array is investigated to improve the performance of the tubular linear machine, in terms of flux density and output power. Instead of a classical Halbach array with only radial and axial PMs, the proposed model involves the insertion of mig-magnets, which have a magnetized angle shifted from the reference magnetized angles of axial and radial PMs. This structure leads to the elimination of flux leakage and the concentration of flux linkage in middle of the coil; therefore, the output power is increased by 13.2%.

Keywords: electromagnetic shock absorber; tubular machine; energy harvesting; Halbach array (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: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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