Wind energy conversion system based on Vienna rectifier with fuzzy logic control technique

Meenakumari.S Department of Electrical and Electronics Engineering,Er.Perumal Manimekalai College of Engineering, Hosur, India Abstract— In this project, a near-unity-power-factor front-end rectifier employing two current control methods, namely, average current control and hysteresis current control, is considered. This rectifier is interfaced with a fixed-pitch wind turbine driving a permanent-magnet synchronous generator. A traditional diode-bridge rectifier without any current control is used to compare the performance with the proposed converter. Two constant wind speed conditions and a varying wind speed profile are used to study the performance of this converter for a rated stand-alone load. The fuzzy logic control is used to maintain the constant voltage to the load. The parameters under study are the input power factor and total harmonic distortion of the input currents to the converter. The wind turbine generator–power electronic converter is modeled in MATLAB and the simulation results verify the efficacy of the system in delivering satisfactory performance for the conditions discussed. The efficacy of the control techniques is validated with a MATLAB Simulink. KeywordsPMSG, Vienna rectifier, Hysteresis controller, Fuzzy logic controller, Pi controller.