Abstract: Among the numerous research literature on photovoltaic modules，some have presented the output
current-output voltage curves and output power-output voltage curves under different irradiance conditions．
Other studies have investigated the relationships between the output voltage，output current，output power of
photovoltaic modules and load resistance．Existing research has explored the output characteristics of solar cells
under various shading conditions and clarified the correlations among output voltage，output current and output
power under different shading scenarios． However，few studies have revealed the relationships between the
output voltage，output current，output power of photovoltaic modules and load resistance under different shading
conditions．This paper briefly addresses this issue．The results show that under the same irradiance intensity，the
output current，output voltage and output power of the photovoltaic module decrease gradually with an increase
in the shading ratio under horizontal shading．Under vertical shading，these parameters drop rapidly，even to
zero，as the shading ratio increases．In addition，we compared the effects of horizontal and vertical shading on
the load characteristics of photovoltaic modules at the same shading ratio and found that the two shading modes
lead to significant differences in load characteristics．It is expected that this study can provide guidance for the
practical application of photovoltaic modules in production and daily life．
吕林喜. 不同遮挡条件下光伏组件的负载特性研究#br#[J]. 大学物理实验, 2026, 39(3): 66-71.
LÜ Linxi. Study on Load Characteristics of Photovoltaic Modules Under Different Shading Conditions#br#. Physical Experiment of College, 2026, 39(3): 66-71.
