What is it about?
This paper presents a time domain modelling method of sources of electromagnetic disturbance. For the identification of an equivalent model, the proposed method is based on the synchronized temporal measurements of the magnetic near field above a power electronic system. To determine the parameters of the model, the proposed methodology is combined with an optimization method based on the genetic algorithms.
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Why is it important?
Unlike the classical approaches developed in the frequency domain, the proposed method allows finding a valid equivalent model for all radiation frequencies of measured time signals. It also enables knowing the phase shift in time between the radiating sources.
Perspectives
The obtained equivalent model can be used to determine the distribution of the field at any point in the space around the studied system (by calculating the magnetic field at other distances in near field zone or to at the far field). This field distribution could be made in order to study the potential interaction between the studied system and other equipment located in the vicinity of this system (such as the study of the power board coupling with the rest of the embedded system). Finally, the knowledge of the radiating model of the power board can help the designer of the embedded system to place the power electronics circuits so as to minimize the effect of radiation of these circuits on the remaining components of the embedded system
Jaleleddine Ben Hadj Slama
Universite de Sousse
Read the Original
This page is a summary of: A time domain inverse method based on the near field technique to solve EMI problems: Application to an AC/DC Flyback converter ..., IET Power Electronics, August 2018, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-pel.2018.5157.
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