Eddy Current Damping Suppression of Long Primary Linear Synchronous Motor
ID：30
Submission ID：30 View Protection：PUBLIC
Updated Time：2021-06-22 09:12:22
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Poster Presentation
Abstract
Eddy current is generated by time-varying current in the armature and the back EMF causing by moving magnets in the cooling plate. It produces a damping force influencing the motor’s dynamic characteristic. In this paper, a new method is introduced to suppress eddy current by offsetting back EMF. The correction of the method and effect of eddy current suppression is proved by simulation: 95% reduction in the damping force significantly help with reducing the thrust fluctuation. The new cooling plate is designed into a unit module, and it can combine with others to make cooling plates of different lengths.
Keywords
Eddy current， Long primary， cooling plate
Submission Author
Mingyi Wang
School of Electrical Engineering and Automation Harbin Institute of Technology
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