Smart Monitoring System for Substation’ Parameters and Automatic under Frequency Load Shedding

Abstract

Monitoring important parameters in electric power stations are very necessary for determining energy efficiency and diagnosing faults that may affect important equipment in substations. Internet of things technology provides the possibility of obtaining station data in real-time. In this research a monitoring system was designed, implemented, and examined in a high voltage substation, to monitor parameters that determine power quality, using a microcontroller (ESP32S), sensor (PZEM-004T), and temperature and humidity sensor (DHT11). The proposed system can provide data that help prevent power outages by relying on engineers who have the ability to analyze comprehensively the electrical energy. The system also provides the Automatic Under Frequency Shedding if the frequency in the stations falls below the normal limit, which contributes to maintain the efficiency and the quality of electrical energy in the substations.