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Contribution à l'étude des perturbations électromagnétiques générées par des convertisseurs

Abstract : This study presents a new method for the determination of the conducted interferences generated by static converters made of several commutation cells in the aim of taking EMC constraints into account as soon as possible during the converter design. The suggested method consists in studying jointly common mode and differential mode conducted interferences by the decomposition of the circuits in elementary blocks, and by the superposition of the interferences due to each pollution sources. EMC performances are determined directly in the frequency domain. This method completes the simulation methods in the time domain which are more accurate, but much more costly in calculation time. Our method has become possible by using a new structure of capacitors whose performances in high frequency decoupling are not limited by the serial self of their connections thanks to an original structure of four terminal connections. So decoupled, commutation cells behave as independent interference sources which allows studies of complex circuits by a decomposition in "elementary EMC cells"
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Submitted on : Monday, March 3, 2008 - 2:25:46 PM
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  • HAL Id : tel-00260186, version 1


Maurice Lardellier. Contribution à l'étude des perturbations électromagnétiques générées par des convertisseurs. Autre. Ecole Centrale de Lyon, 1996. Français. ⟨tel-00260186⟩



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