Teeth Arrangement and Pole–Slot Combination Design for PMLSM Detent Force Reduction

Shi-Uk Chung and Ji-Young Lee
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Shi-Uk Chung: Milwaukee Tool, Brookfield, WI 53005, USA
Ji-Young Lee: Electric Machines and Drives Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51543, Korea

Energies, 2021, vol. 14, issue 23, 1-16

Abstract: This paper introduces and investigates a new design method that employs both teeth arrangement and pole–slot combination to reduce the detent force of permanent magnet linear synchronous motors (PMLSMs) for precision position control. The proposed topology is a 10-pole, 12-slot-based PMLSM comprising two sections that significantly reduce the detent force without implementing a skewing design. It was analytically and experimentally confirmed that the proposed design effectively reduces detent force with a negligible sacrifice of mover length. The general characteristics and servo performance of the proposed PMLSM were experimentally examined and then discussed.

Keywords: detent force reduction; finite element analysis (FEA); teeth arrangement; permanent magnet linear synchronous motor (PMLSM); pole–slot combination; response surface methodology (RSM) (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: 2021
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