Metodologia para acelerar estudos de planejamento da expansão de redes de transmissão pela redução de possibilidade de conexões

Abstract

The electric network transmission expansion planning is a big combinatorial problem that requires the analysis of too many options. That makes the automation of this process difficult, requiring the expertise of experienced professionals who can filter the feasible solutions. This work presents an initial methodology to reduce the number of possible connections. It was done through the bus set reduction evaluated to build new connections using Graph Theory, employing the concepts of degree, independent set, and dominating set. The methodology was developed in Python and applied in the 525 kV portion of a South Transmission Subsystem simplified version from the Brazilian National Interconnected System (SIN). Also, an electrical analysis was performed using ANAREDE by Cepel, as well as an economical evaluation for selecting a solution among the reduced expansion alternatives.