Aiming at the neutral-point-clamped(NPC)type three-level grid-connected inverters system,a deadbeat opti-mizable finite control set model predictive control strategy is proposed based on sliding mode observer.Firstly,in order to reduce the grid current harmonic content and independent control of active and reactive power,a sliding mode observer is constructed based on the power function to realize real-time observation of grid voltage and coupling items.Current dead-beat finite control set model predictive control(FCS-MPC)is proposed based on sliding mode observer and voltage space vector info...
