New MPPT control for wind conversion system based PMSG and a comparaison to conventionals approachs

Abstract

This study aims to apply the ripple correlation current (RCC) approach, which is an MPPT search algorithm used in photovoltaic systems. To extract the maximum power, a wind conversion structure based on a permanent magnet synchronous generator (PMSG), a three-phase rectifier and a boost converter is used. The choice of this structure is justified by the reliability, simplicity of implementation and control. This paper discusses the performance evaluation of a MPPT algorithms called RCC (ripple correlation current) in comparison with the conventional methods. To achieve this objective, four criteria are chosen: speed convergence, need of mechanical sensors, accuracy and dependence of the previous position. The main features presented in this paper are as follows: (a) modeling the power wind conversion systems, (b) presenting and detailing each MPPT algorithm (c) showing the proposed RCC MPPT and it implementation results, (d) conducting a discussion and give an evaluation performance of the proposed approach according to the criteria cited in comparison with the conventional methods.