Modeling of hybrid renewable energy generation consisting of wind, fuel cell and ultra capacitor

Abstract

Consider to the finish of fossil fuel and the growth of population, the need of creating and utilizing new sources of energy is increased. During the past few decades, scientists have discovered new resources to generate electricity. These kinds of energy are called renewable energies. Alongside all the benefits of new resources they have some disadvantages that cannot use them widely. For example, one of the issues in generating electricity from wind is the variation of wind speed. In the case of having an ideal generation of electricity, the use of stable and power quality curve is necessary. But this variation of wind speed sometimes makes a problem in drawing this curve. In order to solve this problem, this study offered the utilizing of the wind and fuel cells as renewable energy in a hybrid configuration. This configuration can solve problems of renewable energy. In this project, the generating of electricity is hydride from wind turbines and fuel cell. If the speed of wind is not enough to generate the electricity, the fuel cell would start to generate it. However, the fuel cell needs the time to arrive nominal value which ultra capacitor start to generate the electricity in this gap. All the system consists of grid, wind turbine, fuel cell and ultra capacitor was simulated in MATLAB software. The output of system should be a stable carve. It means this hybrid system’s generation as a reliable production is used in all wind speed condition. By using this, the disadvantage of using wind is reduced and also the power quality of distribution’s grid and electricity production be improved.