Title :
A Novel Digital Voltage Controller for Single-Phase PFC Rectifiers
Author :
Beyragh, Dawood Shekari ; Sayedi, Sayed Masoud ; Karshenas, Hamid Reza
Author_Institution :
ECE Dept., Isfahan Univ. of Technol.
Abstract :
This paper presents a new control method for suppression of output voltage transients during step load changes in single-phase power-factor-correction rectifiers. In this method, two controllers are used in voltage control loop, the first controller, i.e. \´\´main controller" regulates the DC component of output voltage according to the reference value during steady state condition and the second one, i.e. "auxiliary controller" detects and compensates step load changes. The simulation results of proposed controller on a universal-input flyback based PFC rectifier show excellent operation in both steady state and transient conditions
Keywords :
AC-DC power convertors; compensation; controllers; digital control; power factor correction; rectifying circuits; transients; voltage control; DC component regulation; auxiliary controller; digital voltage controller; single-phase PFC rectifiers; single-phase power-factor-correction rectifiers; steady state condition; step load compensation; transient conditions; universal-input flyback converters; voltage control loop; voltage transient suppression; Control systems; Digital control; Frequency; IEC standards; Proportional control; Reactive power; Rectifiers; Shape control; Steady-state; Voltage control; Digital control; Fast dynamic response; PFC rectifier; VHDL modeling;
Conference_Titel :
Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
1-4244-0038-4
Electronic_ISBN :
1-4244-0038-4
DOI :
10.1109/CCECE.2006.277798
