Analysis and control of grid connected DFIG and solar PV based hybrid energy system

The growth demand for energy and the depletion of fossil fuels leads researchers to develop alternative and sustainable energies sources such as solar and wind energies which have the largest potential in renewable energy. The aim of this paper is to provide solar and wind power to the utility grid. The proposed architecture of the hybrid system consists of Doubly Fed Induction Generator (DFIG) based wind turbine and solar PV. The control of the DFIG is made trough two converter rotor side converters (RSC) and the grid side converter (GSC) to generate active and reactive power and to maintain the DC bus voltage constant. MPPT control is used to maximize the PV power and a boost converter increase the voltage which used by the inverter to feed the grid. Simulation is carried out using Matlab/Simulink environment and the results is provided to show the performance of the hybrid energy system.