TCPST allocation using optimal power flow and Genetic Algorithms

This work presents an optimization model to allocate TCPST at congested transmission systems. The problem was resolved by the Genetic Algorithms (GA) together with an Optimal Power Flow (OPF). The proposed strategy used the GA to make the allocation of the TCPST and the OPF to obtain the load flow solution and optimal adjustments of the phase shifter's taps. The mathematical formulation of the methodology is based on installation's costs of the equipment and total system overload minimization. In order to diminish the search field a methodology to elect the most favorable substations to the devices allocation was considered. This methodology was tested at a 291 bus system that is equivalent, in heavy load, to the electric network of the State of Parana in Brazil. (C) 2011 Elsevier Ltd. All rights reserved.