Uncertainty Analysis of the Conducted Interferences in a Power Converter

M. Ferber, C. Vollaire, L. Krähenbühl, J. A. Vasconcelos

Abstract


A new methodology to analyze electrical systems in the time and frequency domain containing a large number of uncertain parameters is presented. The methodology is based on screening and design of experiments to build surrogate reduced models at a well specified set of frequency values. As an example, the conducted interferences of a Power Converter with uncertainties in its component values are analyzed. The model has a large number of parameters, which are described by Probability Density Functions (PDF). The output considered is a standard measurement of conducted interferences and its PDF is rapidly determined, if compared to the Monte Carlo (MC) approach.

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References


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DOI: http://dx.doi.org/10.1590/S2179-10742013000200016

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