EMC behavior of static converters thanks to radiated field modeling using an equivalent electrical circuit

Concerning power electronics converters, due to frequency and/or power rising, EMC constraints become more and more important for industrials and compliance with standards is not guarantee. In consequence, anticipation becomes a key word for engineers and the conception using computer aided design tools is actually more suitable. That is why, nowadays, efforts are focused on model developments. Unfortunately, modeling methods are limited by the complexity of industrial products. This complexity is due to the geometries with arbitrary shapes and to the nature of associated components (magnetic or not). This paper presents the EMC modeling of static converters with an application to a variable speed drive using integral methods. PEEC, AMLFMM methods and a circuit simulator are combined to compute the differential and common mode sources and finally the emitted field.

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