Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
Title Torque Ripple Reduction in a Flux-Switching Permanent Magnet Motor for Elevator Door Applications
Authors 황홍식(Hongsik Hwang) ; 조정현(Jeonghyun Cho) ; 이치우(Cheewoo Lee)
DOI http://doi.org/10.5370/KIEE.2019.68.2.269
Page pp.269-276
ISSN 1975-8359
Keywords Elevator door ; Torque ripple reduction ; Flux-switching permanent magnet motor ; Winding function
Abstract A flux-switching permanent magnet (FSPM) motor using ferrite magnet is proposed to replace a permanent magnet synchronous motor (PMSM) for elevator door applications. The prototype of an FSPM motor has been built up for experimental validation. Back-electromotive force (EMF) is estimated to prove that simulated results are correct and reliable. The efficiency of an FSPM motor has been verified to be comparable to that of a PMSM in spite of using ferrite magnet, but there is a disadvantage in torque ripple due to the interaction of harmonic components between back-EMF and magneto-motive force (MMF). However, most of researches on an FSPM motor have been focused on eliminating the harmonic components of back-EMF. In this paper, the design process of an FSPM motor based on winding function theory has been given to diminish torque ripple by considering the harmonic components of back-EMF and MMF along with cogging torque at the same time.