Flexible Power Regulation of Grid-Connected Inverters for PV Systems Using Model Predictive Direct Power Control

R S Ravi Sankar (Vignan’s Institute of Information Technology)
S.V. Jayaram Kumar (Vignan’s Institute of Information Technology)
K. K. Deepika (Vignan’s Institute of Information Technology)

Indonesian Journal of Electrical Engineering and Computer Science
Vol 4, No 3: December 2016

This paper presents a Model Predictive Direct Power Control (MPDPC) strategy for a grid-connected inverter used in a photovoltaic system, as found in many distributed generating installations. The controller uses a system model to predict the system behavior at each sampling instant. Using a cost function, the voltage vector with least power ripple is generated. The resultant voltage vector is applied during the next sampling period which gives flexible power regulation. The effectiveness of the proposed MPDPC strategy is verified using MATLAB/ SIMULINK.