A General Solution for Theoretical Harmonic Components of Carrier Based PWM Schemes

Author

Deng, Heng ; Helle, Lars ; Bo, Yin ; Larsen, Kim B.

Author_Institution

Vestas Wind Syst. A/S

fYear

2009

fDate

15-19 Feb. 2009

Firstpage

1698

Lastpage

1703

Abstract

In this paper, a general solution for the theoretical PWM harmonic components is presented. Analytical solutions of harmonic components for all PWM schemes can be easily achieved by using it. The method is applicable irrespective of the pulse ratio between the carrier and the fundamental, and the computational requirements are essentially constant irrespective of the absolute value of the carrier frequency. Moreover, it is especially suitable for software calculation of theoretical harmonic components due to the ease of implementation. Compared with numerical integration method and conventional FFT scheme, the computation time of the proposed solution is much less. Simulation results of 5 popular PWM schemes are presented to verify the general solutions.

Keywords

PWM power convertors; fast Fourier transforms; power system harmonics; PWM schemes; carrier frequency; conventional FFT scheme; harmonic components; numerical integration; software calculation; Computational modeling; Frequency; Harmonic analysis; Power harmonic filters; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Pulsed power supplies; Space vector pulse width modulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE

Conference_Location

Washington, DC

ISSN

1048-2334

Print_ISBN

978-1-4244-2811-3

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2009.4802898

Filename

4802898