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The Hybrid Excitation Flux Switching Permanent Magnet (HEFSPM) motor with magnetic bridge is a topology of hybrid excitation Flux-Switching Permanent Magnet (FSPM) machines. Despite its excellent performance such as high torque/power density, high flux enhancing/weakening capability and so on, it has received less attention due to its complicated structure. Therefore, its optimal design and performance all need to be further investigated. This paper presents a multi objective optimization design of a HEFSPM motor with magnetic bridge based on design sensitivity analysis. At first, the machine structure and basic working principle are discussed briefly. Then, a design sensitivity analysis for geometric optimization is carried out to improve the motor performance. This optimized motor is compared with initial design. Finally, a prototype of the optimized proposed motor is built and tested to validate the simulation results. [ABSTRACT FROM AUTHOR]

In this paper, novel rotor design concepts for a synchronous machine with hybrid excitation are presented. The influence of a magnet and a flux-barrier arrangement on field weakening and strengthening characteristics obtained by 3-D FEA prediction of an ECPMS (Electrically Controlled Permanent Magnet Excited Synchronous) machine is estimated. Finally, 3D-FEA and experimental results of a field control characteristic and no-load back electromotive force (back-EMF) waveforms of the machine with new prototype rotor design are examined. [ABSTRACT FROM AUTHOR]