Predictive control based on analytic model for PV grid-connected inverters

In order to improve the quality of PV grid-connected current, an exact transient analytic model was established based on time-sequence for full bridge inverter. A predictive control method MAC and an improved MAC method PIMAC based on this model were proposed in this paper. In these two methods, the frequency of switch was considered, so some problems had been resolved compared to other traditional methods. The simulation results confirm the correction and superiority of the control strategies proposed.