The research on electromagnetic and thermal issue of the high power density permanent magnet synchronous motor based on thermal conductivity optimization of the armature end

This paper investigates the relationship between the electromagnetic parameters and the extreme input current in a permanent magnet synchronous motor (PMSM). It is found that the direct-axis inductance, DC resistance, and back-EMF for no load conditions have a large influence on the limit of the extreme input current. Hence, the lower back-EMF and smaller direct-axis inductance can help to improve the max output power of PMSM. Finite element analysis is performed for thermal modelling using the ANSYS Workbench and verified by test experiments.

[1]  Nobuyuki Matsui,et al.  Less rare-earth magnet-high power density hybrid excitation motor designed for Hybrid Electric Vehicle drives , 2009, 2009 13th European Conference on Power Electronics and Applications.

[2]  James P. Alexander,et al.  Advanced high power-density interior permanent magnet motor for traction applications , 2014, 2013 IEEE Energy Conversion Congress and Exposition.

[3]  Ming Cheng,et al.  Thermal Analysis and Cooling System Design of Dual Mechanical Port Machine for Wind Power Application , 2013, IEEE Transactions on Industrial Electronics.

[4]  Qi Li,et al.  Development of a High Power Density Motor Made of Amorphous Alloy Cores , 2014, IEEE Transactions on Industrial Electronics.