This paper mainly discusses the mathematical model of the solar cell and it I-V characteristic curve equation , discusses the the relationship between parameters. When changes of light intensity and temperature,We uesed measured value for the reference data , the value of ,,,are tested in 25°C,1000W/m2 the battery is the 3909 battery of Suntech. Then we given the Calculate value of ,,,in 25°C,800W/m2, 200W/m2. We uesed measured value for the reference data , the value of ,,,are tested in1000W/m2, 30°C, the battery is the 4209 battery of Suntech. then we given the Calculate value of ,,,in 40°Cand60°C. Finally ,we analysised the change of the four parameters with light intensity and temperature changes, it shows that the calculation results is consistent with the test data. It can reflect the relationship between I-V characteristic and the changes of light intensity and temperature. This study will help us to give the I-V characteristic and data directly , also help us to study solar cell easyly in any environment
The paper analyzes the influence of user lateral grid-connected PV generation on relay protection of distribution network, and proposes the opinions for the economic technique and selectivity of protection. The paper applies DIgSILENT PowerFactory software to make simulation calculation and analysis on the actual projects, and proposes relay protection allocation scheme and protection setting rules, which provides engineering references for the grid-connected PV power projects.
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