A Micro grid Based on Wind Driven DFIG and PV Array with Boost Converter

In this research work, a green energy microgrid solution for a location that relies on a diesel generator (DG) to supply electricity is presented. Two renewable energy sources—a solar photovoltaic (PV) array and wind energy from a double fed induction generator (DFIG)—power the microgrid. To maximise the power from wind and solar, rotor side VSC control and bidirectional buck/boost DC-DC converter control are employed, respectively. The microgrid is modelled and simulated for a number of scenarios using MATLAB’s Sim Power Systems toolbox, such as changing wind speeds, changing insolation, the impact of load variations on a bidirectional converter, and an unbalanced nonlinear load coupled at the point of common coupling (PCC). The sinusoidal and balanced nature of the DG and DFIG stator currents is found. Another improvement to the model is a DC-DC boost converter connected to PVA for maximum power extraction controlled by the MPPT algorithm.