Dissertação
Nova metodologia para a estimação da seção em falta em sistemas elétricos de potência com foco nos alarmes dos relés de distância e busca de seções isoladas
Fecha
2014-02-25Registro en:
MENCO, Carlos Andres Lazaro. New methodology for the fault section estimation in power systems with focus on distance relay alarms and isolated sections search. 2014. 124 f. Dissertação (Mestrado em Engenharia Elétrica) - Universidade Federal de Santa Maria, Santa Maria, 2014.
Autor
Menco, Carlos Andres Lazaro
Institución
Resumen
This works proposes a novel methodology for Fault Section Estimation in Power Systems. This document describes a computational tool to assist operators of electrical system in decision-making, thus ensuring the reliability of the energy supply and the reduction of reestablishment time after of fault occurrence. The proposed methodology is based on the interpretation of alarms provided by the Supervisory and Data Acquisition System (SCADA) and the electrical characteristics of the system, as well as impedance of transmission lines and transformers, circuit breakers states and settings of distance protective relays. The methodology is deterministic and uses the interception between zones of distance protective relays as base for the section estimation and the circuit breaker states to associate physically isolated sections in the system after of fault occurrence, making use of a shortest path search algorithm. Possible fault scenarios were simulated on the IEEE-30 Bus System in order to validate the methodology. The results show that the approach can provide satisfactory solutions, even in cases of multiple faults or failure of protections devices.