State of Art transmission systems switching with contingency analysis

Abstract

The next investigation is focused in optimal transmission line switching (OTS) after presence of N-1 contingency in electrical power system; OTS chance topology transmission system when in the system is produced a fault, in this manner; this methodology search reduce the losses or demand output of the grid, however the principal idea is reducing the probability of blackout. OTS is a flexible method that permit to solve a lot of problems in the Electrical System. The principal problems are losses and operative costs. In this State of art, we detail the OTS equations and a method approximation. The principal idea is keeping the parameters in the minimum operations in Electrical System (voltage, frequency, generation and demand balance), with N-1 contingency; in SEP evaluate the reliability in prefault and postfault. we use reliability indices to evaluate SEP. OTS method, we permit to do a dynamic restructuring of SEP, and the method permit to keep the parameters and reduce the losses in the system, cause by faults.