Medidor bidireccional trifásico interconectado a la red con monitoreo de la generación de energía eléctrica del conjunto panel-microinversor

Abstract

The main objective of this paper is to present the activities carried out and the results obtained during the design of a three-phase bidirectional meter for a photovoltaic system interconnected to the network. The tests for validation and start up of the bidirectional meter used for wireless measurement and monitoring of the main consumption parameters and electric power generation are described: voltage, current, active power (W), apparent power (VA), power factor and power consumption (kWh). This bidirectional meter was born as a proposal to solve the problem related to the measurement of electric power in photovoltaic systems interconnected to the network, since the bidirectional meters currently installed by the power company (CFE, Comisión Federal de Electricidad) have an inconvenience, they can only be distributed and installed by the same company. It is a low cost and easy installation bidirectional meter. The main advantage of this bidirectional meter is the facility offered to the user to read and understand the readings of the measurements made, displayed on a personal computer screen or a mobile application. Furthermore, the history of the power consumption (kWh) show in the meter database helps the user in making decisions regarding cost reduction.