O estudo da inserção do reativo da Usina Elevatória de Pedreira na dinâmica do sistema elétrico da Grande São Paulo

Abstract

With the operation of the Pedreira Reversible Station as synchronous compensator providing reactive power to the city of São Paulo, many questions have arisen regarding the behavior of machines and the electric system in case of contingencies. Once this operation has never been performed on this system it is not possible to know what the impacts of this operation are. The ability to assess these impacts in continuous operation directs this work whose goal is to analyze the stability of the machines and the dynamics of the electrical system. Through a computer program, predetermined contingencies were simulated to represent the most common faults and events of everyday life of the electrical system. The simulations take into account the main contingencies such as loss of transmission line, load loss and others. These simulations also considered the actual settings of operation of busbars, loads and electricity generators. The main objective was to study a system composed of real electric generation, transmission and consumption of electricity, which now has connected to the network the Pedreira Reversible Station now providing reactive power to the system. The paper contains a description of all equipment present in the real system that was used to create a digital model used by the program. The construction of the model allowed the study of the electrical system through simulations that would be impossible to be made in the real electrical system.