Validação das características eletromecânicas de um motogerador atendendo aos requisitos técnicos para a conexão às instalações de transmissão em uma usina termoelétrica

Abstract

The Electric Power System works with constant modifications due to its complexity and non-linearity, which are caused by the increase in energy demand or variations resulting from physical or environmental phenomena. To ensure the reliability and availability of the system, the National Electric System Operator requires that a series of minimum requirements be met by the generating units that will be connected to the system, which relate to voltage and frequency variation to guarantee electromechanical stability. of the system for reliable and safe operation. In this work, the theory, the motivations, and the way in which the tests were carried out to compose the electromechanical stability study of the W18V50SG engine will be presented. Subsequently, the collected data were entered into the Electromechanical Transient Analysis Program - ANATEM, created by the Eletrobras Electrical Engineering Research Center, for simulations that create approximate scenarios with transients and real faults to verify the machine's behavior and capacity. of self-regulation. During the tests, the actions of the voltage regulators and motor speed were evaluated, in the end, after processing the data in the aforementioned programs, the results and behavior of the machine met the minimum technical requirements demanded by the National Electric System Operator for validation of the set motor generator.