Modelling and comparative performance analysis of special six-phase and conventional synchronous generators for wind farm application

Abstract

Abstract. This paper presents a proposal for the mathematical modelling and computational analysis of special six-phase synchronous generators as required by variable wind farm application. The strategy uses time domain techniques so as to highlight the transient, dynamic and steady state operational conditions. Having completed the representation and the computational implementation of these special machines, the model is inserted into a simplified wind complex. Objectifying the establishment of comparisons between the sixphase and conventional three-phase generator performance, general aspects such as: electrical quantities wave form, improvement of the harmonic distortion, better performance of the damper windings, among others, are focused in the study. The advantages properties associated with the use of the special machine are fully considered throughout this article.

AVR design and stability analysis of six-phase generator-rectifier unit for MVDC applications

“…Multiphase generators are widely used in power systems, such as wind and naval systems [1]- [4]. Usually, terminals of the multiphase generators are connected in parallel through transformers or rectifiers.…”

PMSGs Solutions for Gearless Wind Conversion Systems with Battery Storage

“…Though the PMSGs for wind turbines are typically equipped with a three-phase winding, several multi-phase variants were analyzed in the last years [6]- [7]. The advantages of a multi-phase PMSG compared to the classical three-phase variant can be summarized as follows: the high currents (in case of large power machines) may be divided among several phases, low harmonic distortion and lower acoustic noise at the same power level, improved efficiency, better stability, higher fault tolerance ability, etc.…”

“…In studies like [6]- [7] six-phase PMSGs are studied in comparison with three-phase ones using simplified circuit models. The numerical results prove the advantages of sixphase PMSG.…”