A Novel Design of Optimal Phase Current Waveform for an Electric Vehicle Wheel Motor
Resource
Electric Machines and Power Systems 30 (7): 705-721
Journal
Electric Power Components and Systems
Journal Volume
30
Journal Issue
7
Pages
705-721
Date Issued
2002
Date
2002
Author(s)
Abstract
A novel design of optimal current waveform for a disc-type axial-flux wheel moor is presented in this paper. This dedicated wheel motor has been designed and installed directly inside the wheel of electric vehicles without mechanical differentials and reduction gears. The torque-oriented optimization is performed to obtain the optimal current waveform subject to various constraints for independent winding structure. The best one of the optimal waveforms for maximized torque with confined ohmic loss is found to be proportional to the magnetic flux variation in the air-gap between the stator and the rotor.
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Type
journal article
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