Title :
Pole-placement control of voltage-regulated PWM rectifiers through real-time multiprocessing
Author :
Guo, Yan ; Wang, Xiao ; Lee, Howard C. ; Ooi, Boon-Teck
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
fDate :
4/1/1994 12:00:00 AM
Abstract :
The voltage-regulated pulsewidth-modulated (PWM) rectifier is prone to instability. The system can be stabilized by proportional-plus-integral feedback control, but its transient response is slow. This paper describes results of a study of digital control to improve the system dynamic response by pole placement through state feedback. The control algorithm is implemented for real-time operation by using a custom designed system of three high-speed microprocessors. Results from an experimental study with a 1 kW hardware laboratory model of the PWM rectifier shows that the dynamic response can be significantly improved even when the DC link capacitor is substantially reduced.
Keywords :
digital control; microcomputer applications; multiprocessing systems; poles and zeros; power convertors; power engineering computing; pulse width modulation; real-time systems; rectifiers; rectifying circuits; voltage control; 1 kW; DC link capacitor; digital control; high-speed microprocessors; laboratory model; pole-placement control; real-time multiprocessing; state feedback; system stabilisation; transient response; voltage-regulated PWM rectifiers; Control systems; Digital control; Feedback control; Pulse width modulation; Real time systems; Rectifiers; Space vector pulse width modulation; State feedback; Transient response; Voltage control;
Journal_Title :
Industrial Electronics, IEEE Transactions on
