A three-phase synchronous frame controller for unbalanced load [invertor operation]

Author

Hsu, Ping ; Behnke, Michael

Author_Institution

Dept. of Electr. Eng., San Jose State Univ., CA, USA

Volume

2

fYear

1998

fDate

17-22 May 1998

Firstpage

1369

Abstract

A new control scheme for three-phase inverters is presented in this paper. This control scheme is able to completely compensate for the effect of load imbalance. The controller consists of two PI controllers in two reference frames rotating in opposite directions. These two reference frames extract both positive and negative sequence components of the output voltage. The controller for the negative sequence components effectively compensates for the effect of load imbalance. Both simulation and experimental results are included

Keywords

DC-AC power convertors; PWM invertors; compensation; control system analysis; control system synthesis; load (electric); two-term control; voltage control; PI controllers; PWM stage; control design; control performance; control simulation; load imbalance compensation; negative sequence components; output voltage regulation; positive components; reference frames; three-phase inverters; three-phase synchronous frame controller; unbalanced load operation; Error correction; Force feedback; Frequency; Inverters; Pi control; Proportional control; Pulse width modulation; Resistors; State feedback; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.703214

Filename

703214