The improved model predictive control based on novel error correction between reference and predicted current

This paper proposes an improved model predictive control based on novel error correction between reference and predicted current. The proposed control strategy introduces novel error correction between reference and predicted current to improve robustness and steady-state performance of the system. The control coefficient is computed by the error between the kth instant and the (k-1)th instant without trial, and its range is limited by the Lyapunov stability theorem. Moreover, it modifies the control law of the conventional finite control set model predictive control to reduce the computational burden. The encouraging performances are tested under a single-phase voltage source rectifier. The simulated and experimental results demonstrate that the proposed control strategy not only offers good robustness but also leads to better steady-state performance while retaining fast dynamic response.