Contribution à l’étude de l’effet électromagnétique de la foudre sur un réseau électrique HTB.

Abstract

The majority of the different parts of our work in this thesis in resume: A contribution to the study and analysis of lightning and its effects of electromagnetic coupling with the electrical networks HTB. Lightning is a very severe electrical stress on HTB electrical networks, the physical and electrical description of this phenomenon is an advantage and an important input for the rest of our work. The modified versions of the MTL model used in this work, being the most reasonable compromise between mathematical simplicity and precision. A mathematical analysis of electromagnetic coupling equations and based on recent work by authors, we concluded that the Agrawal model is the most suitable for this type of calculation. We develop the essential of our contribution. Using Agrawal's formalism, we expose our concept for the electromagnetic interaction of lightning with an overhead power line HTB. We also propose an extension of this formalism to the analysis of an HTB line network. We have abordating, the quantification by calculation of the electromagnetic effect of the lightning with an electric network HTB. This we have established a program Matlab simulation to facilitate our calculation task.