Deadbeat direct power control for grid connected inverters using a full-order observer

this paper presents an improved deadbeat direct power control (DPC) for grid connected voltage source converters (VSCs). The proposed deadbeat-DPC combines a deadbeat control law with a full order Luenberger observer to predict the converter behavior. The deadbeat control law is chosen to cancel out the power error and the Luenberger observer is adopted to compensate for the control delay and simultaneously to eliminate the grid voltage sensors. Finally, the excellent steady-state and dynamic performance of the proposed method is confirmed through extensive simulations.

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