Transient Analysis of Electric Energy Distribution Systems with Distributed Generators during Contingencies

Abstract

This paper analyzes the static and dynamic impact of the massive insertion of distributed generators into the distribution systems. For this study the IEEE 33-bus test system is represented on the Simulight platform. Three short-circuit situations are simulated. The results obtained in the simulations are compared with the operating ranges described in module 8 of the Electric Power Distribution Procedures in the Brazilian National Electric System. The comparison between the dynamic regimes of the test system with and without distributed generators points out the greater stability sensitivity of the synchronous generators used in industrial cogeneration projects and reaffirms the need to perform contingency simulations to determine the protection parameters of the installed generators.