PMSGs Solutions for Gearless Wind Conversion Systems with Battery Storage

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.

Design and performance analysis of a permanent magnet synchronous generator equipped with AC-DC converter

“…A first step in the FE analysis of PMSG performance consists in the evaluation of its particular operation characteristics for different load types. The transient magnetic type analysis is governed by the following partial differential equation expressed in magnetic vector potential A [16]:…”