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http://dx.doi.org/10.4283/JKMS.2014.24.5.160

Robust Design Optimization for Reducing Cogging Torque of a BLDC Motor through an Enhanced Taguchi Method  

Lee, Chang-Uk (Department of Electrical Eng., Kyungpook National University)
Kim, Dong-Wook (Department of Electrical Eng., Kyungpook National University)
Kim, Dong-Hun (Department of Electrical Eng., Kyungpook National University)
Publication Information
Journal of the Korean Magnetics Society / v.24, no.5, 2014 , pp. 160-164 More about this Journal
Abstract
In this paper, an efficient robust design utilizing an enhanced Taguchi method is proposed to reduce cogging torque of a BLDC motor in the presence of design uncertainty. To overcome defects of the conventional Taguchi method in dealing with a generalized robust design problem, a penalty function and an optimal level searching technique are newly introduced. In order to verify the proposed method, a 5 kW, rated speed of 2,300 rpm, rated torque of 20 Nm BLDC motor for driving electric vehicles is optimized. Then, the robust design is compared with conceptual and deterministic ones in terms of the cogging torque, rated torque and torque ripple.
Keywords
robust optimization design; deterministic design optimization; Taguchi method, BLDC motor;
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