Design of an Interior Permanent Magnet Synchronous Motor for Electric Scooter Application

Abstract

This thesis presents the design of an interior permanent magnet synchronous motor (IPMSM) for electric scooter (ES) application The required ES can cruise for an average distance 100 km at 50 km/h or 60 km at 80 km/h in one charging time Therefore the ES requires a traction motor possessing high-power density high efficiency wide operating range and cost-effective For these purposes an IPMSM is designed and analyzed Firstly the dynamics behavior of ES is investigated From this the specifications of the electric motor such as torque speed and power can be defined Secondly the IPMSM will be analyzed and designed using magnetic circuit model such that the saliency ratio can be improved for more reluctance torque Different rotor structures are compared such as single magnet layer type multi-magnet layer type and V-shape magnets type The results are also compared with surface mounted permanent magnet type Finally all of the design cases are compared to determine the most suitable IPMSM for electric scooters The design results are evaluated using finite element analysis

Date of Award	2014 Aug 18
Original language	English
Supervisor	Min-Fu Hsieh (Supervisor)