Arquitectura tecnológica para digitalización e integración de datos aplicado al sistema de instrumentación del generador-turbina de la Central Hidroeléctrica Sopladora

Abstract

Abstract: Continuous thermal monitoring of turbomachinery is essential to ensure the mechanical integrity and operational availability of generation units; however, at the Sopladora Hydroelectric Power Plant (CELEC EP), critical bearing metal and oil temperature variables are not integrated into the existing SCADA system. This research designs and implements a non-invasive, layered IT/OT integration architecture for the digitization, transmission, and realtime monitoring of 18 temperature variables from the generation unit's instrumentation panel (TITG). The solution employs edge computing via Node-RED for Modbus TCP data acquisition (1 Hz) and dual JSON frame conditioning, historical logging in an InfluxDB time-series database, and MQTT-based telemetry publishing to the ThingsBoard IoT platform (both local and cloud-based). Additionally, a rule engine was configured for hierarchical alarm discrimination (Major and Critical), featuring automated multi-channel notifications via SMTP and a web-based inbox. The developed architecture offers a cost-effective, state-of-the-art alternative that does not compromise the generation units' performance metrics (availability, reliability), as it requires no downtime for electrical modifications or additional configurations within the existing SCADA system.