Analysis and Control of Permanent Magnet Synchronous Generator based Wind Energy Conversion System

Abstract

In recent years, global energy challenges, including ecological, financial, and regulatory newlineissues, have prompted a search for technological solutions. Distributed generation (DG) has newlineemerged as a viable alternative, utilizing clean renewable energy sources (RESs). Wind newlineenergy conversion systems (WECSs) play a vital role in harnessing wind energy for newlineelectricity generation. Wind farms, capable of producing large amounts of power ranging newlinefrom megawatts to gigawatts, demonstrate the potential of wind energy to meet future energy newlinedemands. These systems can be grid-connected or standalone, with each mode of operation newlinepresenting its own set of challenges. While grid-connected systems are more reliable and can newlineshare power with the grid, standalone systems are essential for remote areas and islands where newlinegrid integration is challenging. The research explores innovative control strategies and system newlinedesigns to improve the overall functionality of PMSG-based WECS. This thesis delves into newlineenhancing the performance, efficiency, and power quality of Permanent Magnet Wind Energy newlineGenerator System for both grid-connected and standalone applications. The research gap has newlinebeen identified by a detailed literature review covering control strategies like Maximum newlinePower Point Tracking (MPPT), LCL filters, Solid-State Transformer (SST) integration, and newlinepower quality enhancement methods, including the use of Self-Tuning Filters (STF). newlineOptimization of Direct Drive PMSG-based WECS through robust control and mathematical newlinemodelling with LCL filtering is investigated to improve system performance and efficiency. newlineIntegration of Solid-State Transformer with an optimal Unified Triple-Phase-Shift Control newlineTechnique is proposed for enhanced power quality and grid reliability in PMSG-based newlineWECS. newlineA Passivity-Based Fuzzy Logic Approach is presented for optimal power extraction from newlinePMSG, focusing on dynamic modelling, control concepts, and fuzzy logic-based torque newlinecontrol strategies.