Conducted EMI Propagation Paths in DC-AC Hard Switching Converter


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Abstract


In order to limit the electromagnetic interference (EMI) in power electronics devices, knowledge about the phenomena connected with EMI generation and propagation is necessary. This papers describes the propagation paths in the 3 phase voltage source inverter using  wide-band simulation and laboratory test with the signal processing method Wiener filtering, where the transfer functions between voltage across switches and the perturbation are measured for different inverter states. Definition of the voltage source inverter switching states is presented for more accurate EMI analysis.
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Keywords


DC-AC Power Conversion; Propagation; Wiener Filtering

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References


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