Influence of Pole Numbers to Field Weakening Characteristics of Interior Permanent Magnet Motor for Electric Vehicle Application
Pudji Irasari
Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Indonesia Komplek LIPI, Jl. Sangkuriang, Gd.20, Bandung 40135, Indonesia.
Muhammad Kasim *
Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Indonesia Komplek LIPI, Jl. Sangkuriang, Gd.20, Bandung 40135, Indonesia
Muhammad Fathul Hikmawan
Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Indonesia Komplek LIPI, Jl. Sangkuriang, Gd.20, Bandung 40135, Indonesia
Puji Widiyanto
Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Indonesia Komplek LIPI, Jl. Sangkuriang, Gd.20, Bandung 40135, Indonesia.
Ketut Wirtayasa
Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Indonesia Komplek LIPI, Jl. Sangkuriang, Gd.20, Bandung 40135, Indonesia
*Author to whom correspondence should be addressed.
Abstract
High torque and wide field weakening region are two parameters needed for electric vehicle. In order to achieve those requirements, variation of pole numbers of an interior permanent motor utilizing the same stator geometry is performed in this study. Slot harmonics are also compared in connection with the losses produced. All calculation are analytically performed and the motor characteristic is presented in the form of torque versus speed graph.
Keywords: Pole numbers, interior permanent magnet motor, slot harmonics, torque, field weakening region.