Higrid Connected Dfig Based Wind Turbine And Solar Pv Energy System Using Fuzzy Logic Controller
To compute the behaviour of Wind Energy Conversion System (WECS) by utilizing a wind turbine drive scheme, a grid linked Doubly Fed Induction Generator (DFIG) based wind power scheme is instigated in this proposed work. In order to retain the constant and continuous power flow from renewable energy sources to grid, a LUO converter is employed. The rotor side converter (RSC) and grid side converter (GSC) controls are utilized to control the wind turbine. To regulate the real and reactive power of stator, the vector control is applied to RSC. The GSC’s main aim is to retain the DC-link potential across the converter. In order to retain DC-link potential, vector control technique is utilized, which gives the independent control of real and reactive power flow of the grid’s converter side and the grid. If there is no wind, solar is used. Due to the temperature changes, the output voltage of solar array is low. By using LUO converter, the PV array’s low level voltage is boosted to high level voltage. Fuzzy Logic Controller (FLC) is employed to maintain the LUO converter’s output as constant. Now the obtained output is compared with solar and wind, the result of which is given to the grid to maintain the constant grid power. The complete system is executed in MATLAB simulink software.