Unified General Phasor Transformation for AC Converters

Author

Rim, Chun T.

Author_Institution

Nucl. & Quantum Eng. Dept., KAIST, Daejeon, South Korea

Volume

26

Issue

9

fYear

2011

Firstpage

2465

Lastpage

2475

Abstract

A general phasor transformation theory for analyzing all linear ac converters such as inverters, rectifiers, cycloconverters, and resonant converters is suggested by unifying the circuit D-Q transformation for polyphase ac converters and the phasor transformation for single-phase ac converters. The system order of polyphase ac converters is degenerated to that of single-phase converters, and the switches in all ac converters, regardless of the numbers of switches and poles, are replaced with an equivalent transformer with a complex turn-ratio. The analysis of ac converters is drastically simplified by the proposed circuit-oriented approach.

Keywords

phase convertors; power transformers; circuit D-Q transformation; circuit-oriented approach; cycloconverters; equivalent transformer; inverters; linear AC converters; polyphase AC converters; rectifiers; resonant converters; single-phase AC converters; switches; unified general phasor transformation theory; Converters; Integrated circuit modeling; Inverters; Mathematical model; Power systems; Rectifiers; Switches; Circuit D-Q transformation; complex transformer; multiphase power-invariant phasor (PIP); phasor transformation;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2011.2107920

Filename

5699928