Performance analysis and design of robust controller for PWM rectifier

In this paper, a new controller has been proposed for pulse width modulation (PWM) based rectifiers. Control scheme of proposed PWM rectifier is used two Neuro-Fuzzy Controllers (NFC) which has robust and nonlinear structure in order to control the reactive power and DC voltage of PWM rectifier. Thus, reactive power and DC voltage are controlled effectively. Moreover, simulation studies are carried out to test the performance of the proposed control scheme at Matlab/Simulink environment. The simulation results obtained from the proposed control scheme are not only superior in the rise time, settling time and overshoot but have high power factor, lower total harmonic distortion (THD) and good power quality.