Optimization of compact overhead lines of 138/230kV: Optimal selection and arrangement of cables and definition of the best transmission line tower topology

Abstract

Due to the problem of the growing necessity of transmitting large electric power packages in high voltage within large urban centers, the construction of compact transmission lines with multiple circuits (LTC) becomes interesting. In this context, this paper presents a new methodology for LTC's optimization implemented on software, which includes since the selection of the topology of the structure until the choice of the conductor and overhead ground wire cables and its optimal positioning. This methodology includes up to four circuits of 138kV and 230 kV in the same tower and makes use of evolutionary optimization techniques to many objectives and decision-making. The obtained results demonstrate the excellence of the proposed methodology.