DocumentCode :
1927651
Title :
Effects of switching time on output voltages of a multilevel inverter used in high frequency applications
Author :
Soltani, Hamid ; Zare, Firuz ; Adabi, Jafar
Author_Institution :
Fac. of Electr. & Comput. Eng., Babol Univ. of Technol., Babol
fYear :
2007
fDate :
9-12 Dec. 2007
Firstpage :
1
Lastpage :
6
Abstract :
Employing multilevel inverters is a proper solution to reduce harmonic content of output voltage and electromagnetic interference (EMI) in high power electronic applications. In this paper, a new pulse width modulation method for multilevel inverters is proposed in which power devices´ on-off switching times have been considered. This method can be surveyed in order to analyze the effect of switching time on harmonic contents of output voltage in high frequency applications when a switching time is not negligible compare to a switching cycle. FFT calculation and analysis of output voltage waveforms and harmonic contents with regard to switching time variation are presented in this paper for a single phase (3, 5)-level inverters used in high voltage and high frequency converters. Mathematical analysis and MATLAB simulation results have been carried out to validate the proposed method.
Keywords :
PWM invertors; electromagnetic interference; fast Fourier transforms; harmonic analysis; switching convertors; FFT calculation; MATLAB simulation; electromagnetic interference; high frequency converters; high power electronic applications; high voltage converters; mathematical analysis; multilevel inverter; on-off switching times; pulse width modulation method; single phase-level inverters; switching time effects; voltage waveforms; Electromagnetic interference; Frequency conversion; Harmonic analysis; Mathematical analysis; Power electronics; Power system harmonics; Pulse inverters; Pulse width modulation inverters; Switching converters; Voltage; harmonic contents; multilevel inverters; optimized harmonic elimination; rise and fall time;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Engineering Conference, 2007. AUPEC 2007. Australasian Universities
Conference_Location :
Perth, WA
Print_ISBN :
978-0-646-49488-3
Electronic_ISBN :
978-0-646-49499-1
Type :
conf
DOI :
10.1109/AUPEC.2007.4548112
Filename :
4548112
Link To Document :
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