A Novel Open-Winding Permanent Magnetic Starter-Generator for Vehicles

This paper presents the analysis, design and implementation of a novel open-winding permanent magnetic starter-generator using the open-winding permanent magnetic machine for overcoming the difficulties of voltage regulation, narrow speed range and low power factor of the permanent magnetic machine for the vehicles applications. In the proposed method, one side of the open-winding permanent magnetic machine is connected to rectifier for the DC voltage output, the other is connected to the inverter for the regulation of the DC voltage. And the open-winding machine can be reconstructed to be the conventional machine as the starter. In contrast to the conventional starter-generator for the vehicle, the speed range of the generation process and efficiency of the machine are improved obviously. A new control algorithm of double-loop for regulation of the DC voltage and current of machine is developed and verified by the simulation results.

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