A simplification method of a modeling of stray magnetic couplings in EMC filters

Electromagnetic Compatibility (EMC) filters for power electronic devices are strongly influenced by magnetic couplings between all components in the system. Therefore, several methods were proposed to predict these influences. Although a precise simulation can be realized utilizing the past methods, it is not practical to consider the all existing couplings especially for a development process in industry due to its high complexity and required empirical knowledge. This paper proposes a simplification method that identifies the most significant influences and reduces an investigative effort remarkably.