Calculation Method using Gap Basic Magnetic Flux of Interior Permanent Magnetic Type Synchronous Motor for Electric Vehicles

Abstract

Greater efficiency for electric vehicle motors is demanded nowadays. Significantly, permanent magnetic type synchronous motor is possible, particularly for the IPM (interior permanent magnetic type) synchronous motor which has great mechanical strength and high efficiency because it uses the reluctance torque efficiently. For the IPM motor, Xd differs from Xq, then we must calculate Xd and Xq exactly. We propose a simple method using gap basic magnetic flux do this. This paper describes our examinations of the IPM motor. Calculated characteristics of the IPM motor agree with the experimental values.