Analysis of the Influence of Back-EMF and Saliency Ratio on Steady-State Characteristics of a High Efficiency Permanent Magnet Synchronous Reluctance Motor
Wang Jin, Li Yan, Jia Jianguo, Jing Yongteng, Zhang Jialin
National Engineering Research Center for Rare Earth Permanent Magnet Machines Shenyang University of Technology Shenyang 110870 China
Abstract：The parameters of E0/U and saliency ratio ρ are crucial for the design and efficiency improvement of permanent magnet synchronous reluctance motor (PMSRM).Firstly,the relationship between power factor and saliency ratio under different E0/U states is deduced.Secondly,the distributions of current,copper loss and core loss on the ρ -E0/U coordinate plane are calculated,and the minimum loss area is obtained.The “palm” design principle of PMSRM applied in high-efficiency motor is proposed.Finally,a 5.5kW prototype was designed and manufactured.The efficiency of the prototype reached IE5,and the consumption of permanent magnet of the PMSRM was 30% less than that of the conventional permanent magnet synchronous motor,which verified the design principle.
王瑾, 李岩, 贾建国, 井永腾, 张佳霖. 反电动势和凸极率对高效永磁同步磁阻电机稳态特性影响分析[J]. 电工技术学报, 2020, 35(22): 4688-4698.
Wang Jin, Li Yan, Jia Jianguo, Jing Yongteng, Zhang Jialin. Analysis of the Influence of Back-EMF and Saliency Ratio on Steady-State Characteristics of a High Efficiency Permanent Magnet Synchronous Reluctance Motor. Transactions of China Electrotechnical Society, 2020, 35(22): 4688-4698.
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2020, Vol. 35 
