Title :
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
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;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-2811-3
Electronic_ISBN :
1048-2334
DOI :
10.1109/APEC.2009.4802898
