Investigation of the Effect of Temperature Coefficients on Mono-Crystalline Silicon PV Module Installed in Kumasi, Ghana

• 作者: Frank Kwabena Nyarko Gabriel Takyi
• 来源期刊: 电力能源(英文)
• 学科: 教育
• 关键词: Photovoltaics MEASUREMENT IRRADIANCE Temperature Coefficient Sub-Saharan Africa
• 年，卷（期）: 2020,（9）
• 页码范围: 20-34
• 页数: 15页
• 分类号: G63

摘要

The performance of solar PV modules is significantly affected by temperature. This paper focuses on the determination of the effect of temperature on a commercial mono-crystalline silicon PV module whose temperature coefficients were not provided by the manufacturer for installation in Kumasi, <span style="font-family:Verdana;">Ghana,</span><span style="font-family:Verdana;"> Sub-Saharan Africa (SSA) ambient. In order to determine the effect of temperature on the output characteristics of the module, the temperature coefficients of current, voltage and power were determined. First of all, the module was cooled to a temperature between 10</span><span style="font-family:Verdana;">°</span><span style="font-family:Verdana;">C</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">-</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">15</span><span style="font-family:Verdana;">°</span><span style="font-family:Verdana;">C</span><span style="font-family:;" "=""><span style="font-family:Verdana;"> in a cooling chamber, covered with cardboard paper before the outdoor electrical tests using Daystar I-V Curve tracer. The results show that as temperature increases, irradiance decreases significantly leading to a decrease in output power (<i></i></span><i><i><span style="font-family:Verdana;">P</span></i></i></span><span style="font-family:Verdana;">_max</span><span style="font-family:;" "=""><span style="font-family:Verdana;">). The open circuit voltage (<i></i></span><i><i><span style="font-family:Verdana;">V_oc</span></i><span style="font-family:Verdana;"></span></i>) also decreases, whilst short circuit current (<i></i></span><i><i><span style="font-family:Verdana;">I_sc</span></i><span style="font-family:Verdana;"></span></i>) increases slightly. The temperature coefficients were obtained from the slopes of the plots of temperature against <i><i><span style="font-family:Verdana;">P</span></i></i><span style="font-family:;" "=""><span