New Structures of IPM Machine for HEV Traction: Investigation on Field Weakening Performance and Harmonic Analyzing

作者：Soleimani J^*; Vahedi A; Ejlali A

来源：International Review of Electrical Engineering, 2011, 6(5): 2310-2317.

• IPM Synchronous Motor
• Barrier
• 3D-FEM Model
• Traction
• Harmonic Analyzing
• Field Weakening

Recently, Inner permanent magnet (IPM) synchronous motors are widely used in hybrid electric vehicles (HEVs) and vehicular applications, such as starters/alternators, power steering, and air conditioning motors. However, it was found that the performance of this motors is quite depended on field weakening operation. A convenient measure of field weakening performance is the constant power speed range (CPSR), which is the speed range at which the drive can maintain constant power with limited values of voltage and current. This paper presents a new structures of IPM synchronous motor for traction application with fragmental buried rotor magnets in order to achieve less torque ripple, less cogging torque, more power factor and electromagnetic torque per ampere improvement and presents the sensitivity analysis on effect of number of barriers is done using 3D-Finite Element Model, and discussed about harmonic analyzing, back EMF, power factor, cogging torque, Flux density, torque per ampere diagram, PM volume, efficiency, CPSR coefficient value behavior of IPMs. This study can help designers in design approach of such motors.

• 出版日期2011-10