利用V形槽聚光的光伏发电系统实验研究OA

Four sets of photovoltaic power gen-eration systems were built:monocrystalline V-trough concentration,polycrystalline V-trough concentration,monocrystalline flat panel and polycrystalline flat panel photovoltaic power generation systems,and experimen-tal tests were carried out.The results show that under the same meteorological conditions,whether using monocrystalline silicon solar cells or polycrystalline sili-con solar cells,the maximum and average electrical powers of the V-trough concentrated photovoltaic power generation systems are greater than those of the flat panel photovoltaic power generation systems.Among them,the maximum and average electrical powers of the monocrystalline V-trough concentrated photovoltaic power generation system are greater than those of the polycrystalline V-trough concentrated photovoltaic pow-er generation system.The maximum and average elec-trical efficiencies of the monocrystalline V-trough con-centrated photovoltaic power generation system are 3.70％and 1.48％higher than those of the monocrys-talline flat panel photovoltaic power generation system,respectively.The maximum and average electrical effi-ciencies of the polycrystalline V-trough concentrated photovoltaic power generation system are 3.13％and 1.99％higher than those of the polycrystalline flat panel photovoltaic power generation system,respective-ly.The maximum and average surface temperatures of the solar cell in the monocrystalline V-trough concen-trated photovoltaic power generation system are 1.13℃ and 3.27 ℃ lower than those in the monocrystalline flat panel photovoltaic power generation system,respec-tively.The maximum and average surface temperatures of the solar cell in the polycrystalline V-trough concen-trated photovoltaic power generation system are 0.95℃ and 3.61 ℃ lower than those in the polycrystalline flat panel photovoltaic power generation system,respec-tively.