Short Message Service System Applied in Predictive Control of Inverters Connected to the Electric Grid in Smart Grids Environments

This chapter presents a study of a system for remote control of active and reactive power injected into the electrical grid based on the Short Message Service (SMS) of a mobile telephone communication network. Wireless communication is widely used in SG and SMS has become a viable option due to its simplicity and low cost. There are numerous solutions for this application regarding the power control of the inverter of a Renewable Energy System (RES), however, this chapter will focus on the use of the Finite Control Set Model Predictive Control (FCS-MPC). In this type of control, the mathematical model of the inverter connected to the electrical grid is used so that it is possible to forecast the active and reactive power. In the optimization process, the cost function selects the switch states so that the controller reaches the desired active and reactive power references. These references are then sent via SMS by the SG operator to the RES under control. The results obtained by the proposed system were validated on an experimental bench.