Three-phase converter models for unbalanced radial power-flow studies

Author

Stoicescu, Razvan ; Miu, Karen ; Nwankpa, Chika O. ; Niebur, Dagmar ; Yang, Xiaoguang

Author_Institution

EMA Inc., Philadelphia, PA, USA

Volume

17

Issue

4

fYear

2002

fDate

11/1/2002 12:00:00 AM

Firstpage

1016

Lastpage

1021

Abstract

This paper presents a power-converter model intended for balanced and unbalanced radial power-flow studies. A three-phase steady-state model of a power converter (AC/DC-DC/AC) composed of a diode rectifier, a lossless DC link, and a pulse-width-modulated inverter is presented. Both the three-phase rectifier and the three-phase inverter are modeled as three, equivalent, Y-connected single-phase rectifiers and single-phase inverters, respectively. The model is implemented within a three-phase power-flow solver with phase representation. Simulation results on a balanced and an unbalanced 15-bus system are presented.

Keywords

AC-DC power convertors; DC-AC power convertors; DC-DC power convertors; PWM invertors; circuit simulation; equivalent circuits; load flow; power system analysis computing; rectifying circuits; AC/DC-DC/AC power conversion; balanced power-flow studies; computer simulation; diode rectifier; equivalent Y-connected single-phase rectifiers; lossless DC link; pulse-width-modulated inverter; single-phase inverters; three-phase converter models; three-phase inverter; three-phase rectifier; unbalanced power-flow studies; unbalanced radial power-flow studies; Control systems; Diodes; Load flow; Load flow analysis; Power distribution; Power electronics; Power industry; Power system modeling; Pulse width modulation inverters; Rectifiers;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/TPWRS.2002.804942

Filename

1137588