Abstract

This paper presents a comparative analysis between a three-phase and a six-phase Permanent Magnet Synchronous Generators (PMSGs) used for small power wind turbines with battery storage. Both studied PMSGs are equipped with diode rectifiers connected across the stator windings terminals. The numerical results are obtained using a 2D Finite Element (FE) analysis of field-circuit coupling type and they emphasize the pros and cons of using three-phase or six-phase PMSGs. The performance analysis includes the evaluation of torque ripples, machine efficiency, voltage and current waveforms and their harmonic distortions, etc. A part of the numerical results are validated by experimental measurements.

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