Análisis de la seguridad dinámica del S.N.I. ante inestabilidad transitoria basado en modelos híbridos

Abstract

This master's thesis presents a computational tool based on the methodology SIME (Single Machine Equivalent), which evaluates problems in power systems transient stability of real power. With this tool stability margins that can guide the definition of preventive control actions to enhance dynamic security of the power system are obtained. The software is developed using the programming language PowerFactory - DIgSILENT Programming Language (DPL) and focuses its analysis on the behavior of the power system in post-failure condition in terms of equivalent OMIB (One Machine Infinite Bus). The tool allows analyzing the evolution of electrical quantities such as angles, rotor speeds, mechanical and electrical power; and applying the criterion of equal areas - EAC (Equal Area Criterion) margins transient stability of the power system are calculated. The results of the application of the methodology in the national grid Ecuador SNI allow verifying the benefits of the method to calculate stability margins and the identification of critical machines on which it is possible to propose preventive control actions with the power system to a new equilibrium.