Conducted EMI identification in power electronic converters
Modeling of EMI generation and propagation using circuit simulation and Wiener filtering methods
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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 co...
This work presents the circuit simulations and the
conventional signal processing technique (Wiener
filtering) in order to reconstruct conducted
ElectroMagnetic Interferences (EMI), generated and
propagated in power electronics converters. In the
simulation study, the most accurate presently
available models of components of circuit have been
used and improved. The proposed Wiener filtering
method allows to identifying the transfer function
between source and generated
perturbations. It can be useful for better
understanding of the origin of the disturbances of
such complex system and may be helpful in converters
designing, concerning particularly control lows or
switching modes. The proposed method has been
developed and validated on simply DC boost structure
and the applied to voltage inverters using PWM, PDM
and finally using resonance (PQRDCLI topology). It
proved that, EMI level and shape, depend on converter
state.
conventional signal processing technique (Wiener
filtering) in order to reconstruct conducted
ElectroMagnetic Interferences (EMI), generated and
propagated in power electronics converters. In the
simulation study, the most accurate presently
available models of components of circuit have been
used and improved. The proposed Wiener filtering
method allows to identifying the transfer function
between source and generated
perturbations. It can be useful for better
understanding of the origin of the disturbances of
such complex system and may be helpful in converters
designing, concerning particularly control lows or
switching modes. The proposed method has been
developed and validated on simply DC boost structure
and the applied to voltage inverters using PWM, PDM
and finally using resonance (PQRDCLI topology). It
proved that, EMI level and shape, depend on converter
state.
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