Enhancement the overhead transmission lines' capacity by modifying the bundle geometry using heuristics algorithms

This paper presents the methodology and the main results of the optimization process to increase the transmission capacity of overhead lines of 500, 750 and 1000 kV by changing the geometry of the bundles using a new heuristic algorithm. The optimization process is done respecting the insulating distances, the maximum electric field at a height of 1.5 meters from the ground surface, the electric field balance in the conductors, and avoiding the generation of corona effect. Using this methodology it was possible to substantially increase the capacity of transmission lines using bundles with moderate dimensions, and having different geometries from previous authors.