Application of the time-frequency analysis using wavelet transform to harmonics analysis in the power conversion systems

In recent years, next generation power semiconductor devices have attracted attention such as SiC device, GaN device and so on. By applying next generation power semiconductor devices to power conversion systems, its operation frequency becomes higher. As the results, small size, light weight and hi...

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Bibliographic Details
Published in2017 IEEE Applied Power Electronics Conference and Exposition (APEC) pp. 679 - 684
Main Authors Nagano, Hiroki, Kimikado, Ryota, Michihira, Masakazu, Akamatsu, Keiji, Ozone, Makoto, Norisada, Takaaki
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2017
Subjects
Fourier transform
Frequency modulation
GAP-D3 converter
Harmonic analysis
Inverters
modulation
Switches
three-phase voltage-fed inverter
Time-frequency analysis
wavelet transform
Wavelet transforms
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Summary:In recent years, next generation power semiconductor devices have attracted attention such as SiC device, GaN device and so on. By applying next generation power semiconductor devices to power conversion systems, its operation frequency becomes higher. As the results, small size, light weight and high efficiency of the power conversion system can be realized. However, when operation frequency becomes high, harmonics issue is caused. Therefore, harmonics analysis of the power conversion system is very important. In order to analyze the harmonics in detail, this paper proposes Wavelet transform analysis as the time-frequency analysis. This paper describes the feature of the Wavelet transform from experimental results.
ISSN:2470-6647
DOI:10.1109/APEC.2017.7930767