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A study of PWM carrier settings and harmonic reduction of a multiply connected voltage source type AC/DC converter
Author(s) -
Funaki Tsuyoshi,
Tanaka Shunsuke
Publication year - 2003
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.10184
Subject(s) - harmonics , pulse width modulation , harmonic analysis , waveform , converters , harmonic , voltage , electronic engineering , modulation index , modulation (music) , control theory (sociology) , electrical engineering , engineering , computer science , physics , acoustics , control (management) , artificial intelligence
Abstract This paper discusses the voltage harmonics generated from the multiple connected voltage source type self‐commutated converter, which is switched with PWM (Pulse Width Modulation) signal generated by comparing sinusoidal signal wave with triangle carrier wave. The conventional harmonics analysis of the multiple connected converters directly calculates Fourier coefficients to the output waveform. This paper formularized the harmonics component of single converter in a convenient expression for the analysis of multiple connected converters using the multiple Fourier transform. The obtained equations not only can give harmonics of the multiple connected converters easily, but also can give index to determine the suitable settings of the PWM carrier for harmonics reduction. The theoretical design of the harmonics reduction of the converter output is confirmed through EMTP simulations. © 2003 Wiley Periodicals, Inc. Electr Eng Jpn, 144(2): 16–25, 2003; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.10184