Metodología para mejorar la estabilidad transitoria en sistemas eléctricos de potencia ante escenarios de contingencias N-M

Abstract

Power systems are increasingly stressed due to increased electrical power consumption due to deregulation of the electrical power industry and operating shutdown to its voltage and transient stability margin. Consequently, these phenomena have led to a greater risk of instability to the electrical system (ES) and to operate within its limits of transient and voltage stability. To preserve the safety of the SE, it is necessary to increase the stability margins and evaluate the maximum limits of electrical power transfer. The transmission line switching (LS) study aims to address issues of voltage stability before, during and after switching, transmission line congestion, optimization of operating costs, analysis of switching of transmission lines during multiple contingencies, dynamic restructuring of the topology of the electrical transmission network and how it impacts on the transient stability of the SE. Therefore, the optimization problem to be solved is linear mixed integer (MILP). In addition, continuous power flows (CPF) are used to evaluate the maximum transfer capacity in congested systems due to the switching of transmission lines. Multiple N - M contingencies are studied in order to predict actions necessary to maintain stability in the SEP.