Active Power Factor Correction

Abstract

Lower in Power Factor of electrical equipment's will draws high current from supply power. The effect of this is affected by impedance of electrical equipment. Power factor correction of boost converter is done by using predictive control strategy. In this project predictive control algorithm is presented based on this algorithm all of the duty cycles required to achieve unity power factor in one half line period are calculated in advance by proportional Integral (PI) controller, the simulation results show that the proposed predictive strategy for PFC achieves near unity power factor. The power factor and input current distortion are analyzed using with control and without control techniques. Simulation results are shows that the power factor is higher than 0.99, and current total harmonics distortion (THD) is smaller than 20% under full load condition. In this project is how impedance of electrical equipment affects the power factor of electrical loads, and then distributed power as the whole. This project is important to verify the right action to increase low power factor effectively for electrical energy efficiency concern.