Integration Research Of Wind And Solar Complementary Energy Supply System In Naqu

In Naqu of Tibet,dry climate,alpine hypoxia.Farmers and herdsmen have no heating facilities,heating is mainly based on burning cow dung,and the poor power supply reliability.The serious problems of heating and power supply needed to be solved urgently.The best technical solution to improved the quality of life of local residents is to use local resources to achieve local energy extraction and energy supply.Integrated research on the village committee's wind-solar complementary energy supply system.Through field research and calculation of heat load and electricity load,power generation device is a 30.1 k Wp photovoltaic array with a 2 k W vertical axis wind turbine,lithium battery energy storage system has an energy of 82.944 k Wh,and a heating system use a 56 m2 DC solar double-pass vacuum tube air type heat collector.Optimized the design of the lithium iron phosphate energy storage battery system under the high and low temperature climate environment.Tested battery cycle life,battery capacity and ambient temperature change relationship,charge-discharge rate and battery capacity relationship,overcharge resistance and recoverable capacity.The test results show that lithium iron phosphate battery performance is superior.It can be used as an energy storage system in alpine and high altitude areas to replace traditional lead-acid batteries.Finally,the joint debugging of the wind-solar complementary integrated energy supply system was performed at the experimental base to simulate various working conditions at different times.The power supply system and the energy storage battery were operating normally,The heating temperature reached the design value.Studies have shown that the main equipment is selected scientifically and the energy supply system is designed reliably,which can realize off-grid power supply and heat supply for buildings in high and cold altitude areas.The research results can provide technical support for the optimization design and equipment selection of distributed energy supply systems in alpine and high-altitude areas.Figure 48;Table 22;Reference 56...