Parametric behavior of the dynamic period overvoltage on power transmission systems

A physical understanding of the dynamic period response of transformer terminated transmission lines is developed using a simplified single phase lumped model and time domain analysis. The sensitivity of the response to various circuit parameters is predicted based on this analysis and then verified using numerical techniques. Results are extended to three phase systems through studies performed on an analog transmission system simulator. It is shown that a weak source is the major factor leading to the generation of a dynamic period overvoltage.