Fast controller for a unity-power-factor PWM rectifier

Author

Eissa, Mohamed O. ; Leeb, Steven B. ; Verghese, George C. ; Stankovic, Aleksandar M.

Author_Institution

Lab. for Electromagn. & Electron. Syst., MIT, Cambridge, MA, USA

Volume

11

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

1

Lastpage

6

Abstract

This paper presents an analog implementation of a fast controller for a unity-power-factor (UPF) PWM rectifier. The best settling times of many popular controllers for this type of power converter are on the order of a few line cycles, corresponding to bandwidths under 20 Hz. The fast controller demonstrated in this paper can exercise control action at a rate comparable to the switching frequency rather than the line frequency. In order to accomplish this while maintaining unity power factor during steady-state operation, the fast controller employs a ripple-feedback cancellation scheme

Keywords

AC-DC power convertors; PWM power convertors; control system analysis; control system synthesis; feedback; power factor; power system harmonics; rectifying circuits; switching circuits; voltage control; PWM rectifier; bandwidth; control design; control modelling; power converter; ripple-feedback cancellation scheme; steady-state operation; switching frequency; unity power factor; voltage controller; Analog-digital conversion; Bandwidth; Capacitors; Power supplies; Pulse width modulation; Reactive power; Rectifiers; Steady-state; Switching frequency; Voltage control;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.484410

Filename

484410