The Wiener Filter Applied to EMI Decomposition

Musznicki, Piotr; Schanen, Jean‐Luc; Granjon, Pierre; Chrzan, Piotr

doi:10.1109/tpel.2008.2004873

Cited by 12 publications

(8 citation statements)

References 12 publications

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“…For the parasitic extraction, these resonant frequencies should be identified. The objectives of the present study are as follows: † identification of transformer resonant frequencies using data from voltage and current measurements for each pair of transformer terminals based on WF [18], † estimation of transformer capacitances using identified frequencies and measured inductances.…”

Section: Modelling and Estimationmentioning

confidence: 99%

“…The WF method can be applied to estimate the transfer function between two signals corrupted with additive noise [17,18]. Thus, using measurement results, as described in Section 4, the transformer impedances are obtained.…”

Section: M3 Measurementmentioning

confidence: 99%

“…For the parasitic extraction, these resonant frequencies should be identified. The objectives of the present study are as follows: identification of transformer resonant frequencies using data from voltage and current measurements for each pair of transformer terminals based on WF [18], estimation of transformer capacitances using identified frequencies and measured inductances. To find the WF transfer function, the voltage signal is used as excitation signal and the current is compared with filter output. After adaptation process the WF transfer function is an approximation of the transformer impedance.…”

Section: Modelling and Estimationmentioning

confidence: 99%

“…In this paper a new method of the transformer stray capacitances adaptive estimation using digital signal processing procedure based on the Wiener filtering (WF) [17,18] is presented. Due to the WF adaptation, circuit lumped parameters of the transformer are extracted, apart from other parasitic components of measurement equipment, as e.g.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Adaptive estimation of the transformer stray capacitances for DC–DC converter modelling

Musznicki

Chrzan

Rucinski

et al. 2016

IET Power Electronics

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New low cost and accurate estimation method of transformer stray capacitances for wide band DC-DC converter modelling and design is proposed. The Wiener filter (WF) method is applied to estimate the transformer impedancereferred to the selected transformer winding configurations. Laboratory tests are used to adapt the filter, that is to find optimal impedance which minimises mean square error between measured, noise perturbed current and reconstructed current. Transformer transfer function peaks indicate internal LC resonances. Stray capacitances are extracted based on resonant frequencies determination. The method validation is carried out by simulation and experimental analysis, where estimated stray capacitances by WF are compared with measurements of an impedance analyser.

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Section: Modelling and Estimationmentioning

confidence: 99%

Section: M3 Measurementmentioning

confidence: 99%

Section: Modelling and Estimationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Adaptive estimation of the transformer stray capacitances for DC–DC converter modelling

Musznicki

Chrzan

Rucinski

et al. 2016

IET Power Electronics

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show abstract

“…The transformer parasitic capacitances have been estimated using digital adaptive Wiener filter (WF) [19]. First, current and voltage have been measured, by applying the square wave voltage generator to the transformer primary, secondary and between primary and secondary terminals.…”

Section: Emi Frequencies Prediction Modelmentioning

confidence: 99%

Electromagnetic interference frequencies prediction model of flyback converter for snubber design

Rucinski

Musznicki

Chrzan

2015

IET Power Electronics

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Snubber design for flyback converters usually requires experimental prototype measurements or simulation based on accurate and complex models. In this study simplified circuit modelling of a flyback converter has been described to dimension snubbers in early stage of design process. Simulation based prediction of the transistor and diode ringing frequencies has been validated by measurements in a prototype setup. In that way obtained simulation data enabled fast and precise snubbers dimensioning. Application example has illustrated effectiveness of the proposed methodology by line impedance stabilisation network (LISN) spectra evaluation of the experimental flyback converter resulting from snubbers dimensioning.

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Modeling of Conducted Emission inASD

Łuszcz¹

2018

High Frequency Conducted Emission in AC Motor Drives Fed by Frequency Converters

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The Wiener Filter Applied to EMI Decomposition

Cited by 12 publications

References 12 publications

Adaptive estimation of the transformer stray capacitances for DC–DC converter modelling

Adaptive estimation of the transformer stray capacitances for DC–DC converter modelling

Electromagnetic interference frequencies prediction model of flyback converter for snubber design

Modeling of Conducted Emission inASD

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