Modelling and control of permanent magnet synchronous generator based on three level NPC using fuzzy PI

Abstract

Recently, the permanent magnet synchronousgenerator (PMSG) has been gained attention by wind turbine(WT) manufactures due to advance of control system and powerelectronics. The permanent magnet synchronous generator basedon three level neutral point control (NPC) system using fuzzylogic control proportional integral (FLC PI) is proposed in thisstudy. The NPC systems of DC link are implemented more easilythan two level systems. The NPC systems provide betterharmonic reduction than conventional two level voltage sourceconverters. The control strategies of the NPC systems reducesemiconductor losses. The proposed system can be implementedto the multi-level converters above three-level. The proposedsystem is developed using the steady state technique. Theperformance of the PMSG system under variation operationcondition is investigated in this study and the performances ofthe PMSG based on three level NPC using FLC PI are analyzed.The validity of the proposed system is implemented and verifiedin the MATLAB/Simulink using three-level insulated gatebipolar transistor (IGBT) converter.