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EMC Filtering of Three-Phase Pwm Converters
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In modern Power Electronics systems high switching§frequencies are employed to increase power density,§but EMC filter components are responsible for a large§volumetric occupation of the power system. In some§cases the EMC filters required to fulfill EMC§regulations cover more than 30% of the total system§volume. In a world where space gets expensive, the§volumetric reduction of the components in EMC filters§is of great importance aiming for reduced dimensions.§This work proposed modeling techniques for the§generation and propagation of conducted emissions in§three-phase converters and filter concepts aiming to§meet EMC standards and reduce the volume of the EMC§filters.§Optimizing EMC filters requires several steps to be§performed, which are described here focusing on§three-phase PWM converters.§Finally, a discussion quantifying how much filters§strongly impact the volume of three-phase PWM§converter systems is preformed.
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