A unique procedure to model and simulate a 36-cell-50 W solar panel using analytical methods has been developed. The generalized expression of solar cell equivalent circuit was validated and implemented, making no influential assumptions, under Simulink/MATLAB R2020a environment. The approach is based on extracting all the needed parameters by exploiting the available parameters from the data sheets of commercial PV panels and by estimating the slopes at both short-circuit and open-circuit conditions of the current–voltage characteristic, usually provided by most solar panels manufacturers under standard test conditions (STC). The effects of solar irradiance and temperature were both considered in the modeling. A system of coupled nonlinear simultaneous equations for diode saturation current, diode ideality factor, and series and shunt resistances has been solved. To accurately model the PV module used in our simulation and analysis, the needed temperature- dependent parameters have been extracted for the first time. At STC irradiance of 1000 W/m², the modeled I-V curve was found identical to the experimental one which is provided by the solar panel manufacturer. The maximum power output of the PV module increases from 8.75 W to 50 W when irradiance varies from 200 W/m² to 1000 W/m² at STC temperature. At temperatures higher than STC and for the same solar irradiance, the power output of the PV module came down about 14.5% only when the operating temperature reached a value of 65 °C. However, as temperature is below STC, the power output went up of about 7.4% beyond the maximum power of the rated PV panel. The calculated power temperature coefficient was about −0.39%/ ^oC which is quite close to the one provided by the solar panel manufacturer.

已经开发出一种独特的程序，可以使用分析方法对36格50 W的太阳能电池板进行建模和仿真。在Simulink / MATLAB R2020a环境下，对太阳能电池等效电路的通用表达式进行了验证和实施，没有任何有影响力的假设。该方法的基础是：通过利用商用光伏面板数据表中的可用参数，并通过估算大多数太阳能电池通常提供的电流-电压特性的短路和开路条件下的斜率，来提取所有所需参数。面板制造商在标准测试条件（STC）下。在模型中都考虑了太阳辐照度和温度的影响。二极管饱和电流，二极管理想因数，串联电阻和并联电阻已解决。为了准确地模拟在我们的仿真和分析中使用的PV模块，首次提取了所需的温度相关参数。在STC辐照度为1000 W / m时^{如图2所示}，发现建模的IV曲线与太阳能电池板制造商提供的实验曲线相同。当STC温度下的辐照度从200 W / m ²变为1000 W / m ²时，PV模块的最大功率输出将从8.75 W增加到50W 。在高于STC的温度和相同的太阳辐照度下，仅当工作温度达到65°C时，PV组件的功率输出才下降约14.5％。但是，当温度低于STC时，功率输出将超出额定PV面板的最大功率约7.4％。计算出的功率温度系数约为-0.39％/ ^o C，非常接近太阳能电池板制造商提供的功率温度系数。