Selected Microcontrollers and Sensors Analysis for Electrical Energy Metering Circuits

Smart grids are quickly displacing traditional grids and are smart energy meters a versatile part of the smart grid. These meters rely heavily on practical microcontrollers, sensors and communication technologies essential for effective and efficient communication on the network. As a result, existing electrical energy meters components (microcontroller and sensor) for projects must be researched and compared to establish their efficacy in smart meters. Performance metrics considered are power consumption, accuracy, memory size and cost of the microcontrollers. Integrated all-in-one PZEM004T and individual voltage sensor-ZMPT101B and current sensor-SCT013 non-invasive sensors were investigated. Microcontrollers studied are readily available in the Arduino Uno board, ATMEGA328P, STM32, ATMEGA1284P and the PZEM. The results indicated that ATMEGA 1284P most satisfies the performance metrics considered.