Control of a multilevel converter using resultant theory

Author

Chiasson, John N. ; Tolbert, Leon M. ; McKenzie, Keith J. ; Du, Zhong

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Tennessee, Knoxville, TN, USA

Volume

11

Issue

3

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

345

Lastpage

354

Abstract

In this work, a method is given to compute the switching angles in a multilevel converter to produce the required fundamental voltage while at the same time cancel out specified higher order harmonics. Specifically, a complete analysis is given for a seven-level converter (three dc sources), where it is shown that for a range of the modulation index m_I, the switching angles can be chosen to produce the desired fundamental V₁=m_I(s4V_dc/π) while making the fifth and seventh harmonics identically zero.

Keywords

Fourier series; fast Fourier transforms; harmonics; invertors; polynomials; power convertors; cascade inverter; fifth harmonies; fundamental voltage; harmonic elimination; higher order harmonics; modulation index; multilevel converter; resultant theory; seven-level converter; seventh harmonies; switching angles; Fuel cells; Harmonic analysis; Pulse width modulation; Pulse width modulation inverters; Switches; Switching converters; Traction motors; Variable speed drives; Vehicle driving; Voltage;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/TCST.2003.810382

Filename

1197326