Optimal programming of insulator washing in transmission lines and substations

摘要

In this paper, we developed a mathematical model based on binary optimization that allows finding solutions of minimum cost for the problem of resources allocation for the insulators washing in transmission lines and substations. The mathematical model proposed is binary linear type, and allows obtaining an allocation plan of resources used for the insulator washing of transmission lines and substations. Another characteristic of the algorithm is that it is of the dynamic type, where n_E steps (months) and n_T (sections of lines) are considered. The proposed model was applied to several test cases, obtaining optimal insulator washing programs, which fully complies with the restrictions of human and physical resources availability. Finally, the proposed model is applied to a real case that corresponds to the southern part of the transmission system of Antofagasta area, Chile. This system consists of 35 sections with a horizon of 12 months. The obtained results allow to obtain an annual insulators washing maintenance plan and to reduce the costs with respect to the previous year in a 33.9%.