Statistical features of lightning-induced voltages

Power quality issues are fundamental in modern power systems. With reference to the lightning phenomenon, induced voltage is one of the problems that is drawing greater and greater attention for distribution lines. An adequate strategy of protection is then needed in order to prevent damages and outages. In this scenario, an accurate analysis of the induced-voltages effects is then essential, and randomness of the phenomenon has also to be considered. In this work, a probabilistic procedure is applied: particularly, an exact analytical solution is used within a Monte Carlo procedure. The analytical solution to evaluate the induced voltage peak value is applied with reference to measured data on first stroke current values. Further, an analysis has been carried out in order to look for the parametric distributions that best match the obtained distributions.