This thesis is about different methods of estimating transmission line parameters. these network parameters are typically assumed to be perfectly known, despite the fact that errors in them significantly effect the state estimates.

The presented parameter estimation model of this paper is basically using the optimal condition form of Lagrangian function of the first differential and Newton-Raphon's method was used for the algorithm for solving the optimal condition form.

This developed parameter estimation is more efficient than general parameter estimation in convergence.