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- Conducted EMI identification in power electronicconverters
Conducted EMI identification in power electronicconverters
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This work presents the circuit simulations and theconventional signal processing technique (Wienerfiltering) in order to reconstruct conductedElectroMagnetic Interferences (EMI), generated andpropagated in power electronics converters. In thesimulation study, the most accurate presentlyavailable models of components of circuit have beenused and improved. The proposed Wiener filteringmethod allows to identifying the transfer functionbetween source and generatedperturbations. It can be useful for betterunderstanding of the origin of the disturbances ofsuch complex system and may be helpful in convertersdesigning, concerning particularly control lows orswitching modes. The proposed method has beendeveloped and validated on simply DC boost structureand the applied to voltage inverters using PWM, PDMand finally using resonance (PQRDCLI topology). Itproved that, EMI level and shape, depend on converterstate.
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