Evaluation of multi predictive controllers for a two-level three-phase stand-alone voltage source converter

This paper discusses a model predictive control (MPC), which is used usually in voltage and current control in a three phase voltage source converter (VSC). Moreover, a discrete model of the three-phase converter system with associated LC filer is used by the predictive control. The controller predicts the values of the system variables. The errors between the references and the predicted values are evaluated by a cost function (CF). Simulation results of the different cost functions are presented. In addition, a multi-steps prediction scheme is also used in order to validate the different cost functions. The presented comparison is conducted with respect to the Total Harmonics Distortion (THD) and total cumulative error.