Rotor Loss Analysis of the Permanent Magnet Synchronous Machine Caused by Stator Magnetomotive Force with Converter Powering
Shen Qiping1, Han Xueyan2
1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400044 China; 2. National Engineering Research Center for Rare Earth Permanent Magnet Machine Shenyang University of Technology Shenyang 110870 China
Abstract As the wide applications of fractional-slot concentrated winding machine and high speed high power density permanent magnet synchronous machine (PMSM), the rotor loss has obtained more and more attentions. The impact of the stator magnetomotive force (MMF) harmonics is the biggest among many influence factors. After analyzing the stator MMF when it supplied by converter, a novel rotor loss influence factor ξk,v is proposed based on the Steinmetz separated iron loss model considering different magnetic paths of different harmonics. The bigger ξk,v, the more rotor loss is, and vice versa. Using the proposed rotor loss influence factor ξk,v, the rotor losses of two typical pole-slot combination machines with 8-pole 9-slot and 8-pole 48-slot respectively are analyzed. The finite element method (FEM) is then adopted to calculate the rotor losses of the two structures, and verifies the proposed analysis method.
Shen Qiping,Han Xueyan. Rotor Loss Analysis of the Permanent Magnet Synchronous Machine Caused by Stator Magnetomotive Force with Converter Powering[J]. Transactions of China Electrotechnical Society, 2016, 31(4): 51-57.
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2016, Vol. 31 
