Metodologia para tomada de decisão multicriterial no processo de restabelecimento automático de energia elétrica

Abstract

The continuity of electric energy supply has been a constant concern for companies in the Brazilian electricity sector. Bound to a strong regulation, the power utilities invest in new technologies to minimize the impact caused by power outages. The contingency situations directly affect the continuity of supply of electricity, making it necessary to develop method-ologies to minimize the impact caused by these situations. In this way, the power utilities have been employing efforts for the automation of distribution networks in order to reestab-lish power in a more agile way, resulting in better indexes of continuity and increased con-sumer satisfaction. In this context, the objective of this work is to develop a methodology to improve the performance of the restoration of energy in contingency conditions. For this, we seek to minimize the impact of the number of consumers affected, the unserved energy and time to system restoration. To find the best option for the power restoration will be used the analysis multicriteria decision making. In this way will be used in this work two methods of analysis and multicriteria optimization. The first is the algorithm AHP - Analytic Hierarchy Process, which will make the measurement and qualification of the estimate of experts, defin-ing the degree of importance of each criterion. To set the ranking of the best solutions is used the method Bellman-Zadeh which, using the fuzzy logic, determines the best candidate to solve the problem. The effectiveness of the proposed algorithm is demonstrated with a case study involving the utility actual system.