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Studies Related to the Optimization of an Interior Permanent Magnet Synchronous Machine Designed for the Electric Vehicles

This paper presents a study related to the optimization of a 150 kW interior permanent magnet synchronous machine with rotor magnets in delta configuration used for an electric vehicle. The first part highlights the characteristics of the reference motor. Two mono-objective optimizations studies concerning the minimization of the cogging torque and the minimization of the ripple torque were performed. The performances of the ideal optimized machine and of the unoptimized machine are compared using Altair HyperStudy and FluxMotor software packages, which combine analytical calculation with finite element analysis and also using the genetic algorithm method.