Design and Monitoring of a Voltage battery sensor of an Uninterruptible Power Supply (UPS) by means of an Arduino

In this paper we presents the design of a battery voltage sensor of an Uninterruptible power supply (UPS) by means of an Arduino board technology. The battery sensor senses the external battery voltage value and compares it with the dc charging voltage of an Uninterrupted Power Supply. An alarm is designed to notify the personnel, in the event that the two voltages do not match in terms of value compares. In most cases, UPS are equipped with sensors mainly to protect rectifier and inverter circuits without considering enough sensors to the battery circuit. These sensors make them reliable, stable as well as to alert the personnel for any abnormality in voltage level changes. This design was fascinated with proteus software application for the simulation of the UPS battery voltage sensor and the experimental setup, Protocol and Prototype built. The performance evaluation was achieved with the battery sensor implemented into the Uninterrupted Power Supply by means of an Arduino board technology to sense the battery voltage comparing it with the Uninterrupted Power Supply charging voltage. From the experimental results, the state of the battery charge (SOC) was monitored by the designed sensor, under charge and discharge condition in percentage (%), a range of 11.6 VDC and 12VDC was achieved respectively.