COMPARATIVE STUDY OF SINGLE-PHASE PWM RECTIFIER CONTROL TECHNIQUES

In this study, 2.5 kW single-phase pulse-width modulated rectifier is simulated with three different control techniques to investigate the performance of controllers. Rectifier simulation performed in Matlab / Simulink environment by using hysteresis current control, sinusoidal pulse width modulation and voltage oriented techniques. comparison techniques, considering switching frequencies, total harmonic content drawn from grid, phase difference between grid current, DC bus regulation at output are considered as criteria. The frequency set 35 kHz Since variable technique, average instantaneous calculated for band values. results varies 18.52 47.6 kHz, while 34.6 kHz. As a result, distortion 3.69%, 1.12% 1.82%, respectively. synchronization achieved all regulated active power.