Avaliação de desempenho e risco em sistemas elétricos de potência.

Abstract

This thesis describes a formal method of assessing performance and risk associated with to electrical power systems and interconnected installations. The study proposes a disturbance propagation model and its impacts on the expected values ​​of performance and risk indicators of power systems, and their contribution and cross impact of various market players and actors during electrical system. The method is based on the propagation of cascade disturbances. through the topology of the power grid and can be used for planning and real-time fault diagnosis, and post-operative assessment. In addition to fees forced and programmed outputs intrinsic to the equipment, other factors are such as safety and reliability of protections, hidden failures and circuit breakers, and manual reset and automatic reclosure times after a disturbance. Your joint contribution determines the final level of continuity of each node of the power grid, and the fraction of responsibility of each agent. With small changes, the method can be applied to many other processes industrial For this, a MatLab® program has been developed to be applicable any process that uses interdependent components. A case study illustrates its application to an extra-high voltage electrical installation while a small scale power system is used throughout the thesis to illustrate the methods.