Retirada de sobrecargas através de redespacho de potência ativa

Abstract

The purpose of the present work is to discuss and to analyse a redispatch technique to overcome the overload problem in electrical power systems. Aspects of the operation process in such systems are described generically in spite of having as reference the ONS – Operador Nacional do Sistema and more specificaly CTEEP – Companhia de Transmissão de Energia Elétrica Paulista operation procedures. It is presented the traditional load flow calculation method and following that the redispatch technique which aims to overcome the overload problem in transformers and transmission lines. This technique was developed as a software resulted of the Research and Development First Cycle conducted by CTEEP and made by Universidade Federal de Itajubá – UNIFEI. Tests and results were made with the help of this software. Changes were made in the original proposal according to the needs, during the research by the UNIFEI’s team. The CTEEP’s electrical system was adopted for the test stage and comparisons between the redispatch techinique and the daily performances employed in the real time and operation planning departments.