Metodología para el Reforzamiento de Redes de Distribución en Base a la Confiabilidad

Abstract

The distribution system reliability planning is being done worldwide more frequently due to satisfy the electric energy power necessities nowadays, more reliability and quality in the supply are required as a cause of that the electric and electronic devices used nowadays are much more sensitive to the disturbances in the distribution networks. In this thesis a methodology is proposed for the improvement of the distribution systems taking into account the economical benefits produced by the planning as a function of reliability, with the purpose to obtain a plan in which the major benefits to the lower costs are obtained. A Monte Carlo simulation is done to obtain the distribution system areas that have more probability to present failures, and as a result of that, the installation of reclosers is proposed in order to reduce the time of failure duration and the costs generated as a consequence of failures; it is also considered the option of the authomatic load transference between feeders to an already existing link point, evaluating their costs and possible benefits. It was decided to do the reliability improvement by reclosers, considering that according to the specialized literature on this subject [1,2], from the whole of the failures occurrence in distribution systems, between the 50% and 80% are temporary in nature, so that the use of reclosers is appropriate for the planning improvement of reliability. For the development of this thesis two feeders from the West Oaxaca substation from Oaxaca City were simulated where one has 907 sections and the other has 614 sections. The software SynerGEE Electric 3.8.3® was used for the simulation of load allocation, power flow and reliability of the distribution network; and for the Monte Carlo simulation a program in Fortran 90 was done.