Small-signal modeling and control of three-phase PWM converters

Author

Hiti, Silva ; Boroyevich, Dushan ; Cuadros, Carlos

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

fYear

1994

fDate

2-6 Oct 1994

Firstpage

1143

Abstract

The paper presents a systematic approach to small-signal modeling, and control design of three-phase PWM converters. The well established design procedures used in DC-DC converter control design, are adapted for the three-phase converter control based on the similarity in the small-signal dynamics of the three-phase converters and their DC-DC counterparts. The approach is especially beneficial in three-phase rectifier control, which is reduced to a single-input single-output system after closing the current loops. The modeling approach is verified on a 10 kW three-phase boost rectifier switching at 15.6 kHz with DSP control. A wide-bandwidth output voltage control loop is then designed based on the verified small-signal transfer functions

Keywords

PWM power convertors; closed loop systems; digital control; digital signal processing chips; electric current control; power engineering computing; rectifiers; rectifying circuits; switching circuits; transfer functions; voltage control; 10 kW; 15.6 kHz; DSP control; control; current loops closing; rectifier control; single-input single-output system; small-signal modeling; switching; three-phase PWM converters; three-phase boost rectifier; transfer functions; wide-bandwidth output voltage control loop; Control design; Filters; Power system modeling; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Sliding mode control; Switches; Switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-1993-1

Type

conf

DOI

10.1109/IAS.1994.377572

Filename

377572