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

J. P. G. S. Filho; I. P. Faria; Aurélio L. M. Coelho; Elcio F. Arruda; Gustavo P. Lopes

doi:10.20906/sbse.v2i1.3076

J. P. G. S. Filho Instituto de Ciências Tecnológicas, Universidade Federal de Itajubá – Campus de Itabira Itabira – Brasil
I. P. Faria Instituto de Ciências Tecnológicas, Universidade Federal de Itajubá – Campus de Itabira Itabira – Brasil
Aurélio L. M. Coelho Instituto de Ciências Tecnológicas, Universidade Federal de Itajubá – Campus de Itabira Itabira – Brasil
Elcio F. Arruda Instituto de Ciências Tecnológicas, Universidade Federal de Itajubá – Campus de Itabira Itabira – Brasil
Gustavo P. Lopes Instituto de Sistemas Elétricos e Energia, Universidade Federal de Itajubá – Campus de Itajubá Itajubá – Brasil

DOI: https://doi.org/10.20906/sbse.v2i1.3076

Keywords: Thyristor Controlled Series Capacitor, Static Var Compensator, Angular Stability, Protection Synchronous Generator, Loss of Excitation

Abstract

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