Simulation of Pwm Controlled Buck-boost Ac Voltage Regulator

Thyristor based controlled method in AC voltage regulator has very low dynamic response and discharge large amount of harmonic components. And a PWM Controlled Buck-Boost AC Voltage Regulator can efficiently and economically used in low and medium power applications in the advantage of design simplicity with operation reliability in a clear withstand of naturally commutated schemes. It has very fast response speed, low harmonics component distortion and high power factor. In this paper we propose a voltage controller with output peak voltage and reference as feedback signal and adopts conventional control strategy to regulate the output voltage. The experimental results of PWM Controlled Buck-Boost AC Voltage Regulator is presented using MATLAB software.