Design And Simulation Of Wind And Solar Hybrid Power System For Remote Rural Area

With the world increasingly industrialized and population increasing, the humandemand for food, water and energy is growing rapidly, causing energy shortage andenvironmental pollution, which limits the social and economic development of many ruralareas in China, especially the remote ones as the irrigation water resources in those areasare mainly from water pumping and power source is conventional fossil fuel. Theenvironmental pressure and the increasing price of fossil fuel make the rural areas look forcleaner and cheaper power source. The renewable energy sources especially wind and solarenergy have the advantages of clean, the use of pollution-free, widely distributed,inexhaustible, which can help solve our energy shortage and environmental problems tosome extent. However, power from single solar or wind energy is unstable and unreliable.The complementary feature between solar and wind energy indicates that photovoltaic andwind hybrid generation system is a wise option, which will improve power system stabilityand reliability. Meanwhile, it can also solve the problem of electricity supply in remoteareas and island most of which just are located in areas boasting abundant wind and solarresources. Since government is investing more and more money into this field and the costof wind and solar is dropping, wind and solar hybrid generation system will be acost-effective solution for remote rural areas.The main work is to design a independent hybrid wind and photovoltaic power systemfor rural communities in China, which employs maximum power tracking strategy for windand PV module. This research will develop a wind/PV hybrid system with energymanagement based on the fact that pumping load and lighting load have different powerreliability requirement, which can cut off and start up the water pumping load withdeferrable feature. The work focuses on the role the energy management system plays inthe extreme weather conditions and its impact on battery protection, which will be validatedby MATLAB simulation. Finally the thesis models the rural pumping load based on cropevapotranspiration method and builds the rural area energy consumption profile. Based onthis comprehensive load model considering both water pumping and residential load andobtaining the meteorological data of8760hours of the studied site, we try to design a feasible power system for that area.