A three-phase open hardware design for power quality solutions

The complexity of power grids in terms of generation and consumption transforms the traditional power system to a distributed one. This new paradigm obliges to a better monitoring and control. Herein, we present a low cost and compact device that allows to measure, energy, voltages and currents in three-phase networks. In addition, it has been designed to analyse PQ disturbances. This device is a smart meter and can be considered internet-based power quality monitoring. The statistics data are processed locally with built-in custom software, specifically designed for this purpose, which provides energy consumption or generation patterns in multiple visualization views. The design is released as open hardware and therefore it is presented to the community as a powerful tool. The system was installed in a real photovoltaic power plant over a long time, showing interesting results and findings, which validates our proposal. © 2020, European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ). All rights reserved.