Title :
A Unity Power Factor Control Method of PWM Rectifier
Author :
Zhang Jinggang ; Yang Bo ; Zeng Guang ; Tian Yangyang
Author_Institution :
Dept. of Electr. Eng., Xi´an Univ. of Technol., Xian, China
Abstract :
This paper analyzes the principle of PWM rectifier, and present a unity power factor control method of PWM rectifier. Controller used double closed-loop PI control, which inner uses three-phase input current control method controlled by unity power factor and outer controls the output DC voltage of rectifier. Voltage phase detection methods which proposed could eliminate the affection of the voltage harmonics on phase detection accuracy. The result of the simulation and experiment verify the feasibility and effectiveness of the method.
Keywords :
PI control; PWM rectifiers; closed loop systems; electric current control; power factor; voltage control; DC voltage control; PWM rectifier; closed loop PI control; current control method; unity power factor control method; voltage phase detection method; Inverters; Power harmonic filters; Pulse width modulation; Reactive power; Rectifiers; Switches; Voltage control;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0545-8
DOI :
10.1109/APPEEC.2012.6306905
