Design and Implementation of an Automatic Over/Undervoltage Protection System for Single-Phase Low Voltage Power Lines
Design and Implementation of an Automatic Over/Undervoltage Protection System for Single-Phase Low Voltage Power Lines作者机构：Laboratoire de Génie Electrique Mécatronique et Traitement du Signal ENSPY University of Yaounde I Yaounde Cameroon Department of Electrical/Electronic Engineering NAHPI University of Bamenda Bamenda Cameroon Higher Technical Teacher Training College (HTTTC) University of Bamenda Bamenda Cameroon Research Unit Condensed Matter Electronics and Signal Processing Department of Physics Faculty of Science University of Dschang Dschang Cameroon
出 版 物：《Journal of Power and Energy Engineering》 (电力能源（英文）)
年 卷 期：2022年第10卷第8期
页 面：12-25页
学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
主 题：Overvoltage Undervoltage Simulation Arduino Microcontroller Tripping Mechanism Sub-Saharan Africa
摘 要：Today, many industrial and domestic electronic appliances and equipment (devices) are exposed to power disturbances such as voltage variations of the AC mains supply which often lead to damage of the electronic devices. As these devices are quite sensitive to power disturbances, there is a need for a tripping system that can help avoid any damage to devices in use. The objective of this work is to build a system that monitors line voltage and protects appliances from unacceptable voltage variations. The system consists of a tripping mechanism that monitors the input voltage and trips according to the limits provided. An Arduino Uno microcontroller is used to determine the voltage level through a voltage divider circuit. The system’s novelty and innovation lie in its flexibility. It offers the user the ability to define different overvoltage and undervoltage threshold values depending on the specific appliances used in the household. In operation, the system displays the voltage state (overvoltage, normal voltage, overvoltage) and alerts the user by sending an SMS via a GSM modem. The system is valuable for industrial and domestic applications, especially in developing economies such as those of Sub-Saharan Africa, where overvoltage and undervoltage are acute problems.
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