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 :
28 Oct-1 Nov 1991
Abstract :
The voltage-regulated pulse-width-modulated (PWM) rectifier is prone to instability. The system can be stabilized by proportional-plus-integral feedback control, but its transient response is slow. The authors describe 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 show that the dynamic response can be significantly improved even when the DC link capacitor is substantially reduced
Keywords :
digital control; feedback; microcomputer applications; multiprocessing systems; poles and zeros; pulse width modulation; real-time systems; rectifiers; stability; transient response; two-term control; voltage control; DC link capacitor; PI control; PWM rectifiers; algorithm; digital control; dynamic response; feedback; microprocessors; pole placement; real-time multiprocessing; stability; transient response; two-term control; voltage control; Control systems; Digital control; Feedback control; Pulse width modulation; Real time systems; Rectifiers; Space vector pulse width modulation; State feedback; Transient response; Voltage control;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
DOI :
10.1109/IECON.1991.239232
