Design method on induction motor of electric vehicle for maintaining torque performance at field weakening region

Recently, electric vehicle is paying attention because of its eco-friendly characteristics. Interior permanent magnet synchronous motor(IPMSM) is the most popular type of electric motor because of its compactness and high efficiency. But recently, rising costs of permanent magnet and demagnetization issues which result from high current density make interests in induction motor for vehicle traction field. In this paper, design method of induction motor for maintaining torque performances at field weakening region is proposed. Analysis results are verified by 2D Finite Element Analysis(FEA).

[1]  Sang-Yong Jung,et al.  Numerical design and characteristic analysis of inverter-fed induction motor , 2013, 2013 International Conference on Electrical Machines and Systems (ICEMS).

[2]  Thomas M. Jahns,et al.  Impact of saturation and inverter cost on interior PM synchronous machine drive optimization , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[3]  T. S. Radwan,et al.  Performance of interior permanent magnet motor drive over wide speed range , 1999, IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272).

[4]  Philip T. Krein,et al.  Evaluation of Induction and Permanent-Magnet Synchronous Machines Using Drive-Cycle Energy and Loss Minimization in Traction Applications , 2014, IEEE Transactions on Industry Applications.

[5]  Zhi Yang,et al.  Comparative Study of Interior Permanent Magnet, Induction, and Switched Reluctance Motor Drives for EV and HEV Applications , 2015, IEEE Transactions on Transportation Electrification.

[6]  Sang-Yong Jung,et al.  Comparison of loss and thermal analysis according to square conductor division considering skin effect , 2014, 2014 17th International Conference on Electrical Machines and Systems (ICEMS).

[7]  Jung-Pyo Hong,et al.  Characteristics of IPMSM According to Rotor Design Considering Nonlinearity of Permanent Magnet , 2016, IEEE Transactions on Magnetics.