A Study on a Slotless Brushless DC Motor with Toroidal Winding

In this study we developed a brushless DC (BLDC) slotless motor with toroidal winding. The proposed toroidal winding is a method of winding a coil around a ring-type stator yoke in the circumferential direction. As there is no need for a slot or tooth structure, it can be designed with a slotless mo...

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Autores principales: Ho-Young Lee, Seung-Young Yoon, Soon-O Kwon, Jin-Yeong Shin, Soo-Hwan Park, Myung-Seop Lim
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/ec7aac7e6c024212a2b351614dcc6b56
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spelling oai:doaj.org-article:ec7aac7e6c024212a2b351614dcc6b562021-11-25T18:50:04ZA Study on a Slotless Brushless DC Motor with Toroidal Winding10.3390/pr91118812227-9717https://doaj.org/article/ec7aac7e6c024212a2b351614dcc6b562021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1881https://doaj.org/toc/2227-9717In this study we developed a brushless DC (BLDC) slotless motor with toroidal winding. The proposed toroidal winding is a method of winding a coil around a ring-type stator yoke in the circumferential direction. As there is no need for a slot or tooth structure, it can be designed with a slotless motor structure that is advantageous for vibration and noise. The basic principle of operation and motor characteristics of a slotless motor with toroidal winding were explained using an analytical method and finite element analysis (FEA). Further, the air gap flux density, winding factor, and back electromotive force (EMF) for changes in the winding angle and number of coil turns were calculated using the analytical method and compared with the FEA results. Finally, the resistance, back EMF, cogging torque, and performance of the prototype were measured and compared with the FEA results. The results show that the air gap flux density and winding factor were approximately the same with an error of <2%, while the back EMF had an error of ~10% from the analysis result. Thus, the proposed slotless motor provides a basic design for conveniently manufacturing brushless DC (BLDC) slotless motors with toroidal windings.Ho-Young LeeSeung-Young YoonSoon-O KwonJin-Yeong ShinSoo-Hwan ParkMyung-Seop LimMDPI AGarticlebrushless dc motor (BLDC)slotless motortoroidal windinglumped-parameter magnetic circuitback electromotive force (EMF)cogging torqueChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1881, p 1881 (2021)
institution DOAJ
collection DOAJ
language EN
topic brushless dc motor (BLDC)
slotless motor
toroidal winding
lumped-parameter magnetic circuit
back electromotive force (EMF)
cogging torque
Chemical technology
TP1-1185
Chemistry
QD1-999
spellingShingle brushless dc motor (BLDC)
slotless motor
toroidal winding
lumped-parameter magnetic circuit
back electromotive force (EMF)
cogging torque
Chemical technology
TP1-1185
Chemistry
QD1-999
Ho-Young Lee
Seung-Young Yoon
Soon-O Kwon
Jin-Yeong Shin
Soo-Hwan Park
Myung-Seop Lim
A Study on a Slotless Brushless DC Motor with Toroidal Winding
description In this study we developed a brushless DC (BLDC) slotless motor with toroidal winding. The proposed toroidal winding is a method of winding a coil around a ring-type stator yoke in the circumferential direction. As there is no need for a slot or tooth structure, it can be designed with a slotless motor structure that is advantageous for vibration and noise. The basic principle of operation and motor characteristics of a slotless motor with toroidal winding were explained using an analytical method and finite element analysis (FEA). Further, the air gap flux density, winding factor, and back electromotive force (EMF) for changes in the winding angle and number of coil turns were calculated using the analytical method and compared with the FEA results. Finally, the resistance, back EMF, cogging torque, and performance of the prototype were measured and compared with the FEA results. The results show that the air gap flux density and winding factor were approximately the same with an error of <2%, while the back EMF had an error of ~10% from the analysis result. Thus, the proposed slotless motor provides a basic design for conveniently manufacturing brushless DC (BLDC) slotless motors with toroidal windings.
format article
author Ho-Young Lee
Seung-Young Yoon
Soon-O Kwon
Jin-Yeong Shin
Soo-Hwan Park
Myung-Seop Lim
author_facet Ho-Young Lee
Seung-Young Yoon
Soon-O Kwon
Jin-Yeong Shin
Soo-Hwan Park
Myung-Seop Lim
author_sort Ho-Young Lee
title A Study on a Slotless Brushless DC Motor with Toroidal Winding
title_short A Study on a Slotless Brushless DC Motor with Toroidal Winding
title_full A Study on a Slotless Brushless DC Motor with Toroidal Winding
title_fullStr A Study on a Slotless Brushless DC Motor with Toroidal Winding
title_full_unstemmed A Study on a Slotless Brushless DC Motor with Toroidal Winding
title_sort study on a slotless brushless dc motor with toroidal winding
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/ec7aac7e6c024212a2b351614dcc6b56
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