Dynamic modelling of a Sustainable Micro grid with Wind, PV and Fuel Cell Resources

摘要

Power demand in commercial areas and residential areas is being increased on daily basis, so to meet the expected load, renewable energy sources like, wind and solar power generators are playing a major role in generating green power, so, micro grid provides an objective to connect and disconnect to the main grid according to the requirements, a micro grid operates on a grid mode and islanded mode, one of the drawbacks found in the micro grid operations is the sustainability of the grid during changes or disturbances in environmental conditions. The objective of this paper is to model a micro grid of 75KW using MATLAB/Simulink, and make the micro grid a sustainable one, when the load is fully dependent on the micro grid by supplying power without fluctuation. The wind and PV energy sources behaves well in different environmental conditions and extracts maximum power by incorporating a Maximum power point tracking system (MPPT), and the sustainability of the system is obtained by connecting a fuel cell and supplying its power to the load and avoiding blackout.