Optimization and thermal analysis of less-rare-earth interior permanent-magnet synchronous machines used for electric vehicles

The electric vehicles become increasingly popular duo to their characteristics of energy efficiency and environmental protection. The motor used in the electric vehicles is usually the permanent magnet synchronous machines (PMSM). In recent years because of the price fluctuations of the rare earth, the less-rare-earth interior permanent-magnet synchronous machine (LRE-IPMSM) has attracted more and more attention because of its high performance and low cost. In this paper, a investigated LRE-IPMSM is optimized with respect to the width of the bridge and the span angle of the permanent magnet (PM) slot. The losses are calculated at base and maximum speed work points, and then the temperature field of the investigated LRE- IPMSM is analyzed to make sure the PMs and the winding work at the safe temperature range.

[1]  Shigeo Morimoto,et al.  Experimental Evaluation of a Rare-Earth-Free PMASynRM With Ferrite Magnets for Automotive Applications , 2014, IEEE Transactions on Industrial Electronics.

[2]  Shuang Zhao,et al.  Thermal Analysis of a PMaSRM Using Partial FEA and Lumped Parameter Modeling , 2012, IEEE Transactions on Energy Conversion.

[3]  David G. Dorrell,et al.  Automotive Electric Propulsion Systems With Reduced or No Permanent Magnets: An Overview , 2014, IEEE Transactions on Industrial Electronics.

[4]  Gianmario Pellegrino,et al.  Design of Ferrite-Assisted Synchronous Reluctance Machines Robust Toward Demagnetization , 2014, IEEE Transactions on Industry Applications.

[5]  Dan M. Ionel,et al.  Establishing the Relative Merits of Synchronous Reluctance and PM-Assisted Technology Through Systematic Design Optimization , 2015, IEEE Transactions on Industry Applications.

[6]  N. Bianchi,et al.  An Analytical Approach to Design the PM in PMAREL Motors Robust Toward the Demagnetization , 2016, IEEE Transactions on Energy Conversion.

[7]  Nicola Bianchi,et al.  Selection Criteria and Robust Optimization of a Traction PM-Assisted Synchronous Reluctance Motor , 2015, IEEE Transactions on Industry Applications.

[8]  Dan M. Ionel,et al.  Establishing the relative merits of synchronous reluctance and PM assisted technology through systematic design optimization , 2015, 2015 IEEE Energy Conversion Congress and Exposition (ECCE).

[9]  Gianmario Pellegrino,et al.  Multipolar Ferrite-Assisted Synchronous Reluctance Machines: A General Design Approach , 2015, IEEE Transactions on Industrial Electronics.

[10]  Nicola Bianchi,et al.  Traction PMASR Motor Optimization According to a Given Driving Cycle , 2016, IEEE Transactions on Industry Applications.

[11]  H. Huang,et al.  Research of parameters and anti-demagnetization of rare-earth-less permanent magnet assisted synchronous reluctance motor , 2015, 2015 IEEE Magnetics Conference (INTERMAG).

[12]  Yong Xiao,et al.  Research of Parameters and Antidemagnetization of Rare-Earth-Less Permanent Magnet-Assisted Synchronous Reluctance Motor , 2015, IEEE Transactions on Magnetics.

[13]  P. Zheng,et al.  Thermal Analysis of a Novel Cylindrical Transverse-Flux Permanent-Magnet Linear Machine , 2015 .

[14]  Sai Sudheer Reddy Bonthu,et al.  Comparisons of three-phase and five-phase permanent magnet assisted synchronous reluctance motors , 2016 .