Modernización del Sistema de Supervisión, Control y Monitoreo del Sistema de Aire Acondicionado para el Sistema de Barra Segura y Sistema Digital de Supervisión y Control (SDSC) de la Central Hidroeléctrica San Francisco.

Abstract

In the present research, the air conditioning system of the San Francisco Hydroelectric Plant was modernized. It aims to improve the state of electrical and electronic elements which were found in the different work areas that need a suitable stable and wet temperature. This modernization is able to avoid health diseases because operators spend several hours of work underground. The prior system did not allow to carry out a monitoring of the data and a precise control of what happened. For the hydroelectric plant the safe Bar Code System and the Digital Supervision and Control System (DSCS), the air conditioning system works by temperature and relative air humidity controllers. Different changes related to the electronic part of the system were made to get a better management of the system. The process diagrams of instrumentation Piping and Instrumentation Diagram/Drawing (P&ID) and the modification of the electric and electronic planes were carried out for a better handling at the time of maintenance. The Implementation of a new temperature and relative humidity sensor for the control of the two air conditioning units, as well as reprogramming in the PLC (Programmable Logic Controller). A new touch panel and its human-machine interface (HMI) were installed. It allowed to increase system reliability and improve its technology in order to have a correct visualization of its operations in local form and remote in real time. It is concluded that the modernization of the system managed to improve the human-machine interaction, the maintenance of the electronic and electrical part and solve the current problems in the previous air conditioning system. The purchase of spare parts of the air conditioning system in order to solve possible faults due to incorrect functioning of some elements that are in bad condition.