摘要

This paper presents a new design of the hybrid excitation switched reluctance motor (HESRM), based on the conventional switched reluctance motor. The proposed design combines conventional switched reluctance motors with rare-earth permanent magnetic materials of high performance. Firstly, the basic structure and principle of the new HESRM is analyzed, and then further researches are made on the permanent magnet reluctance torque with the method of equivalent magnetic circuit diagram. Besides the two-dimensional finite element method is applied for the study of the conventional switched reluctance motor and the relations between the permanent magnetic excitation and the motor winding excitation. The paper also involves the investigations on the influence of permanent magnetic excitation over the electromagnetic torque. The structure size of permanent magnet which determines the performance of the new HESRM, is also calculate. The paper summarizes the basic law of the design and optimization for the new HESRM and compares it with the conventional switched reluctance motor.

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