Plataforma Virtual de Emulação de um Sistema de Geração de Energia Eólica Baseado no GSIP Interligado à Rede Elétrica Trifásica

Abstract

This paper presents a study and implementation of an eolic emulator platform for a wind energy generation system (EEP-WEGS), which is based on mathematical models that describe the static and dynamic behaviors of a wind turbine, composed of a permanent magnet synchronous generator. The management of electrical power generated from the mathematical model of the wind generator (MM-WG) is performed by a back-to-back converter (rectifier/inverter), which is responsible for controlling the power drained and injected into the three-phase power grid. The first stage of this converter is composed of a controlled rectifier, that is responsible for draining sinusoidal currents from the grid whose amplitudes are defined by a reference generation system (RGS), based on the MM-WG. Inside the RGS, the maximum power point tracking (MPPT) algorithm is also present. Therefore, MPPT techniques are addressed during the paper for optimizing the performance of the wind system. A three-phase inverter is used in the last stage of the back-to-back converter, which controls the DC bus voltage and the currents injected into the grid calculated by the MM-WG. For evaluation of the proposed EEP-WGS, simulation results are shown, to demonstrate the static and dynamic behaviors of a complete wind system, as well as evaluate the performance in the search for the MPP, allowing the analysis of the MPPT algorithms employed.