Improvement of Voltage Profile of the Hybrid Power System connected to the Grid

This paper presents the analysis of Renewable Hybrid Power System (Wind Turbine and Solid Oxide Fuel Cell) connected to the Grid and the performances of front-end three phase power Inverter. In order to Inject more power to the Grid Safely, without creating disturbances at the Grid, the Power Conditioning System (PCS) is used. This type of Combination (Wind Turbine and Solid Oxide Fuel Cell) is most efficient and Reliable one. The Solid Oxide Fuel Cell (SOFC) improves the Voltage Profile in the DC link and helps the system to maintain desired Output. An AC-AC Back to Back Converter is used for the Wind – Turbine Power Conversion. A common DC link is connected to the Grid Inverter in order to convert DC to AC, and injects the converted power to the Grid. On the other side of DC link, Wind Turbine Rectifier Circuit and Solid Oxide Fuel Cell DC-DC Converter are connected in Parallel. Hence it is the Cost Efficient one. The Final Power Conditioning System has the Advantages: control of the reactive power, offering a nearly unity power factor operation capability, DC link voltage regulation, fast disturbance compensation capability, high reliability, and low cost. The Control Block diagram for the Hybrid system connected to the grid is modeled and simulated by using MATLAB/SIMULINK.