积尘情况下光伏组件数学模型研究

Research on Mathematic Model of PV Module with Dust Accumulation on the Surface

灰尘颗粒沉积到光伏组件表面后，会使组件前盖玻璃的透光率降低，导致组件的输出功率降低，使其输出特性发生衰减，对光伏电站发电量有较大影响。研发光伏电站灰尘影响检测系统，对灰尘清扫工作提供准确建议，可以进一步提高检修运维水平，增加电站经济效益。本文通过对积尘情况下光伏组件数学模型的研究，提出了一种关于灰尘积累造成的光伏组件输出衰减的评估测量方法，

When the dust are accumulated on the surface of the PV module, the light transmittance of the front cover glass is reduced, resulting in the power output of the PV module reduced and the output characteristics attenuated, which has a great influence on the power generation capacity of the PV power plants. The research of the dust detection system of PV system can provide accurate recommendations of the dust cleaning work, which can effectively improve the quality of operation and maintenance and further improve the economic benefits of power plants. In this article, a method of measuring and evaluating the output attenuation of PV modules caused by dust accumulation is proposed based on the study of the mathematical model of PV modules in dusty case.