Title :
On accuracy of averaging for switched converters
Author :
Kolka, Zdenek ; Biolek, Dalibor ; Biolkova, Viera
Author_Institution :
Fac. of Electr. Eng. & Commun., Brno Univ. of Technol., Brno, Czech Republic
Abstract :
The paper deals with the analysis of accuracy of averaged models of DC-DC converters in the frequency domain. The averaged models of Boost, Buck and Buck-Boost converters are compared with results obtained using the harmonic balance method. It will be shown that the error of averaged models depends on the structure of state matrices and may reach a substantial magnitude even below the Nyquist frequency.
Keywords :
DC-DC power convertors; frequency-domain analysis; matrix algebra; switching convertors; DC-DC converters; Nyquist frequency; averaged models; buck-boost converters; frequency domain; harmonic balance method; state matrices; switched converters; Equations; Frequency conversion; Harmonic analysis; Mathematical model; Matrix converters; Pulse width modulation; Switches; DC-DC converters; averaging; harmonic balance; small-signal frequency response;
Conference_Titel :
Circuits and Systems (APCCAS), 2010 IEEE Asia Pacific Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-7454-7
DOI :
10.1109/APCCAS.2010.5774983
