Journal
IEEE TRANSACTIONS ON MAGNETICS
Volume 50, Issue 2, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2013.2285234
Keywords
Asymmetric barrier; cogging torque; interior permanent magnet synchronous motor (IPMSM); skew method; torque ripple
Funding
- National Research Foundation of Korea of the Ministry of Education, Science, and Technology [2012-0003353]
- National Research Foundation of Korea [2011-0013272] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This paper proposes a method to minimize the cogging torque and torque ripple of an interior permanent magnet synchronous motor by adopting asymmetric barrier design and inverting lamination method. The analysis method for cogging torque and torque ripple is suggested using finite-element method. An asymmetric barrier in a permanent magnet rotor is optimally designed without permanent magnet skew. This proposed design for low cogging torque and torque ripple has an advantage over skew design from a manufacturing point of view. The proposed model is compared with the skew model and nonskew model by calculating torque characteristics to determine the more effective method to reduce torque distortion.
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