Low Torque Ripple Rotor Design of the Interior Permanent Magnet Motor Using the Multi-Phase Level-Set and Phase-Field Concept
- Authors
- Lim, Sunghoon; Min, Seung jae; Hong, Jung-Pyo
- Issue Date
- Feb-2012
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Interior permanent magnet (IPM) motor; level-set based design optimization; multi-phase level-set model; phase-field model; torque ripple reduction
- Citation
- IEEE TRANSACTIONS ON MAGNETICS, v.48, no.2, pp.907 - 910
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON MAGNETICS
- Volume
- 48
- Number
- 2
- Start Page
- 907
- End Page
- 910
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/166359
- DOI
- 10.1109/TMAG.2011.2175441
- ISSN
- 0018-9464
- Abstract
- This paper proposes a new optimization method to design the rotor of interior permanent magnet (IPM) motor which consists of a permanent magnet (PM) and ferromagnetic material (FM) for reducing the torque ripple. To express three different material properties (PM, FM, and air), a multi-phase level-set model representing two level-set functions is introduced and the concept of a phase-field model is incorporated to distribute level-set functions for controlling the complexity of the structural boundaries. The optimization problem is formulated to minimize the torque ripple under the volume constraints of each material. Two level-set functions are updated with their respective design sensitivities. To verify the usefulness of the proposed method, the rotor design example of the IPM motor is performed and a novel configuration is obtained.
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