EFEITOS DA INSERÇÃO DE SVC E TCSC NA ESTABILIDADE ANGULAR TRANSITÓRIA E NA PROTEÇÃO CONTRA PERDA DE EXCITAÇÃO DE MÁQUINAS SÍNCRONAS

This work presents a methodology, based on the modeling of an electrical power system test created in PSCAD/EMTDC simulation environment. The purpose is to evaluate, at first, impacts that Thyristor Controlled Series Compensator (TCSC) and Static Var (SVC) cause transient angular stability generators against disturbances, evaluating rotor displacement synchronous under analysis. In second moment, behavior ANSI 40 protection function evaluated for conditions total partial loss excitation since this uses impedance information its operation. results indicate compensators can improve disturbances. And about func- tion, change time trajectory reaches zones was identified