Cost Function Design for Stability Assessment of Modulated Model Predictive Control

This paper proposes a quadratic cost function for Modulated Model Predictive Control, M2PC, designed in a way such as to guarantee that the inverter under consideration will be stable for a desired steady-state operational condition, also considering parametric variations. The M2PC results in better harmonic performance, less current ripple and less steady-state error when compared to the classical FCS-MPC. Hardware-in-the-Loop, HIL, results are presented comparing the performance of the implemented M2PC and a classical FCS-MPC for a two-level inverter connected to an RL load, considering the same cost function. The HIL results have demonstrated the good performance of the proposed approach, showing the stability and performance despite the model of the implemented M2PC.