Title :
Unified General Phasor Transformation for AC Converters
Author_Institution :
Nucl. & Quantum Eng. Dept., KAIST, Daejeon, South Korea
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;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2011.2107920
