Title :
A robust load current compensation method for PWM power converter
Author :
Yim, Chung Hyuk ; Kim, Chang Hwan ; Kim, Gyu Sik
Author_Institution :
FA Res. Inst., Samsung Electron. Co., Kyungki, South Korea
Abstract :
In this paper, we propose a new nonlinear DC link voltage control scheme, which is based on a nonlinear load current observer, for voltage type PWM power converter. The load current observer is designed by using the full nonlinear converter model and our converter control scheme does not require any additional sensing device. Therefore, the converter adopting our new controller can provide fast and precise voltage regulation and can be made cheap and small. To demonstrate the practical use of our control method, we present various experimental results as well as mathematical performance analysis
Keywords :
PWM power convertors; compensation; observers; robust control; voltage control; PWM power converter; nonlinear DC link voltage control; nonlinear converter model; nonlinear load current observer; robust load current compensation; voltage regulation; Analog-digital conversion; Bridge circuits; Capacitors; Inductors; Pulse width modulation; Pulse width modulation converters; Reactive power; Robustness; Velocity control; Voltage control;
Conference_Titel :
Power Electronics Congress, 1996. Technical Proceedings. CIEP '96., V IEEE International
Conference_Location :
Cuernavaca
Print_ISBN :
0-7803-3633-X
DOI :
10.1109/CIEP.1996.618534
