Analytical Optimal Currents for Multiphase PMSMs Under Fault Conditions and Saturation
Type
Communications avec actesAuthor
NGUYEN, Ngac KyFLIELLER, DamienKESTELYN, XavierSEMAIL, EricAbstract
An original analytical expression is presented in this paper to obtain optimal currents minimizing the copper losses of a multi-phase Permanent Magnet Synchronous Motor (PMSM) under fault conditions. Based on the existing solutions [i]opt1 (without zero sequence of current constraint) and [i]opt2 (with zero sequence constraint), this new expression of currents [i]opt3 is obtained by means of a geometrical representation and can be applied to open-circuit, defect of current regulation, current saturation and machine phase short-circuit fault. Simulation results are presented to validate the proposed approach.
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