Direct Power Control with Space Vector Modulation and Fuzzy DC- Voltage Control- PWM Rectifier

Abstract: The study made in this paper concerns the use of the direct power control (DPC) of three-phase pulse width modulation (PWM) rectifier with constant switching frequency. This control method, called direct power control with space vector modulation (DPC-SVM), the uses of SVM technique for the converter switching signal generation, is based on the power control model of the converter in synchronous coordinates (dq), with the aim of ensuring a stable active power exchange, and providing line current very close to sinusoidal waveforms, and good regulation of DC-bus voltage is achieved using FUZZY controller. A digital simulation, in Matlab/Simulink/ SimPowerSystems and Fuzzy Logic Toolbox, was carried out. This showed clearly the effectiveness of the adopted control strategies.