Active power flow control of wind-pv hybrid system using ai technique

Scarcity of power has been one of the nightmare issues for mankind in the modern age. Renewable Energy Sources (RES) working parallel with conventional power plants are playing a lead role in narrowing the difference between supply and demand. Among all the available renewable energy sources wind-solar hybrid systems are the most popular one. Due to their natural advantage of being complimentary to each other, they are assuring reliability to the utility. Power quality issues arising due to the usage of non-linear loads at the point of common coupling are addressed with the help of power electronic device interfacing RES to the grid. The proposed architecture of the hybrid system consists of H-bridge multilevel inverter based wind turbine and solar PV. The PV system produces dc output whereas WTG generates ac output voltage. For grid connection of these two sources, different power electronic interfaces are required. The DC-shunted grid connected hybrid PV/wind power system is used. In this system, the output of PV array is connected to DC/DC boost converter and the dc link voltage is regulated. AC output voltage of wind energy system is rectified using uncontrolled rectifier and then a DC/DC boost converter is used to control DC link voltage. The multilevel inverter is incorporated with shunt active power filter functionality is further used to interface the DC shunted wind-solar hybrid model to the grid. The work presented in this paper consists of Modelling and Simulation of wind-solar hybrid energy system and interfacing it to the grid through the interfacing inverter. A suitable control strategy which will add shunt active filter functionality to the RES interfacing device to the grid is also undertaken.