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http://dx.doi.org/10.5762/KAIS.2014.15.10.6270

Study of the Reduction of Torque Ripples for Multi-pole Interior Permanent Magnet Synchronous Motors using Rotor Saliency  

Kim, Ki-Chan (Department of Electrical Engineering, Hanbat National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.10, 2014 , pp. 6270-6275 More about this Journal
Abstract
The paper reports an improvement method on torque ripples of multi-pole interior permanent magnet synchronous motor (IPMSM) applied to a traction motor for hybrid electric vehicles. In the case of multi-pole IPMSM, the magnetic flux generated by a permanent magnet tends to leak through the bridge of the rotor without a link with stator windings. The slit design on the rotor surface was proposed to reduce torque rippling and increase the output power by reducing the leakage flux. Two design parameters for the slit are suggested for optimal design using the response surface method. As an analysis method, the 2D finite element method (FEM) was applied to consider magnetic saturation effect.
Keywords
Interior permanent magnet synchronous motor; Response surface methodology; Torque ripple reduction;
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