Predictive Current Control of Grid - tied Cascade H - bridge Inverter
نویسندگان
چکیده
This paper presents a grid-tied cascade H-bridge inverter with predictive current control technique. The proposed 15-level cascade inverter consists of three H-bridge inverters with separated DC sources. At the output of the cascade inverter an L filter is used as a grid filter. The cascade inverter is controlled by the mean of RT-Lab. The predictive current regulator and one-phase synchronous reference frame PLL are designed with help of Rapid Control Prototyping. The proposed control method uses a discrete model of the system to predict behavior of the system for each of 15 voltage levels of inverter output voltage. Verification by simulation and on a laboratory model is described.
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