A Study on Modeling and Simulation of Hybrid Solar-Wind System under Variable Load Condition

Abstract

Energy demand is increasing with speed of rocket and the resources of conventional energy sources basically fossil fuels (coal, gas, oil) are decreasing rapidly. The renewable energy is free of cost and abundantly found anywhere. It is also carbon free so does not impact on global warming or climate change. If we increase the burning of fossil fuel the earth will not be an inhabitable for living beings. One of the major worldwide tasks is to reduce the emission from the traditional power plants by using renewable energy and reduce the cost of supplying electricity to remote areas. Power generation and energy needs always be uneven. However, these energy sources (renewable) are based on weather condition and poses inherited intermittent nature, which hinders stable supply. Combining   multiple renewable energy sources can be a possible solution to overcome defects and to optimized the global efficiency of the process. Hybrid energy sources not only provide reliable power but also leads to reduction in the required storage capacity. An oversized hybrid system satisfies the load demand but not economical. An under sized system can’t meet the load demand. The optimal sizing of the renewable energy power depends on the mathematical model of system components. Main objective of this paper to study on the various load conditions for achieving this goal. As a whole this paper summarizes the mathematical modeling of various renewable energy system in the MATLAB platform.