Analytical optimal currents for multiphase PMSMs under fault conditions and saturation

Ngac Ky Nguyen,D Flieller,Xavier Kestelyn,Tiago Jose Dos Santos Moraes,Eric Semail

IECON（2014）

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摘要

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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关键词

fault diagnosis,permanent magnet motors,short-circuit currents,synchronous motors,analytical expression,analytical optimal currents,current constraint,current regulation,current saturation,fault conditions,fault saturation,geometrical representation,machine phase short-circuit fault,multiphase pmsm,open-circuit,permanent magnet synchronous motor,zero sequence constraint,fault tolerance,optimal currents,saturation,short-circuit,torque pulsation,electromagnetics,short circuit,torque,vectors,open circuit,harmonic analysis,simulation

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