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Magnetic Field Analysis of Notched SPMSM Using Conformal Mapping
- Authors
- Ko, YY[Ko, Young-Yoon]; Song, JY[Song, Jun-Young]; Seo, MK[Seo, Myung-Ki]; Kim, YJ[Kim, Yong-jae]; Jung, SY[Jung, Sang-Yong]
- Issue Date
- Mar-2019
- Publisher
- KOREAN MAGNETICS SOC
- Keywords
- analytical method; air-gap permeance; conformal mapping; notched motor
- Citation
- JOURNAL OF MAGNETICS, v.24, no.1, pp.168 - 173
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF MAGNETICS
- Volume
- 24
- Number
- 1
- Start Page
- 168
- End Page
- 173
- ISSN
- 1226-1750
- Abstract
- We present an analytical method for applying conformal mapping to the notched geometry of a surface permanent magnet synchronous motor to calculate the cogging torque. First, the complex relative air-gap permeance (CRAP) of the notched air-gap is calculated by multiplying the CRAP of a slotted air-gap with the notch sensitivity coefficient, which is defined by the relation of slot and notch shapes. Secondly, the no-load air-gap flux density (AFD) is derived from the CRAPs of the notched and slotted air-gaps. Finally, the cogging torque of the notched motor is calculated by the no-load AFD and is verified using the 2D finite element analysis (FEA) result. A 4-pole and 12-slot surface permanent magnet synchronous motor with the notch is used herein.
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Related Researcher
- JUNG, SANG YONG
- Information and Communication Engineering (Electronic and Electrical Engineering)