Load Demand Response Controller

Abstract: This project aims to design a system which helps electricity consumers to monitor and control their electrical loads. In this system, the energy meter is connected to an optocoupler which provides optical isolation and transfers electrical signals between the energy meter and Arduino UNO. This system has a step-down transformer and Regulated Power Supply (RPS) to provide supply to Arduino UNO and to the loads through electromagnetic relays. The electromagnetic relays act like a switch for the operation of the loads. The system is enabled with an Arduino UNO which acts like a control device. A Wi-Fi module ESP8266 is used to link the Arduino UNO to the internet. All of the data is processed by Arduino, and the Wi-Fi module communicates the energy consumption values to the Blynk application. Through Blynk application, the energy consumption values and load turn on/turn off options are available. From the Blynk application, relays can be operated as switches. The energy consumption is calculated by the Arduino UNO and when the peak load consumption is reached, the Wi-Fi module will send an email to the consumer’s email id notifying them to turn off the unwanted loads.