Alocação Otimizada de Medidores para Localização de Faltas utilizando Medições de Tensão
Keywords: Power Quality Meters, Fault Location, Short-circuits, Voltage Sags, Allocation of Meters
AbstractThis work presents a Binary Integer Linear Programming (BILP) formulation for the problem of optimal allocation of meters, considering two objectives: minimizing the number of meters and maximizing the number of identifiable faults. The problem was tested on a 15- bus European Medium Voltage System of CIGRE´, considering the inclusion of a distributed generator and the possibility of operating the system as a weekly meshed network. Instances with solid single-phase A-ground faults were generated, uniformly distributed throughout the system. The optimization problem was solved through the Algorithm for Bicriteria Discrete Optimization (ABCDO) and the Nondominated Sorting Genetic Algorithm (NSGA-II), obtaining solutions with 1 and 2 meters. The meter allocations obtained were used to feed a fault locating algorithm based on voltage measurements. The results showed a reduction of multiple fault estimation regions, which is interesting for application in modern distribution networks.