Transmission expansion optimization via constructive heuristic technique

This work presents a heuristic constructive algorithm which evaluates the optimal set of transmission expansion paths of an electrical system. To do this, the discrete variables of transmission system are mitigated with the use of a linear function, which is valid for the [0,1] interval. These discrete variables are considered in the optimal power flow (OPF) using interior point technique. Considering that the solution region is non convex, there could be many combinations of expansion transmission paths to match the demand. Therefore, the proposed algorithm is started taking into account different starting points. Presently, it is possible to find a reduced set of likely transmission expansion paths. This algorithm has a trade off between efficiency and fastness to solve the transmission expansion problem of electrical systems. This algorithm was tested with the use of the Garver system.