The performance of photovoltaic (PV) modules is influenced by environmental variables, especially shading. Partial shading makes the solar irradiance level of solar cells in PV modules uneven, thus reducing the performance of PV modules and even damaging the PV modules. In this work, the single diode model and the Bishop model are used to simulate the I–V characteristics of various half-cell modules in detail, and the results under normal and shading conditions are analyzed. Investigations of module configurations include a series-parallel-series connections half-cell module with 3 bypass diodes, one configuration with a series of 120 half-cells with 3 bypass diodes, and another configuration with a series of 120 half-cells with 5 bypass diodes. In the simulation, the working modes of the shaded half-cells can be clearly understood. Electrical performances of three modules in different shading scenarios are obtained. Through the practical shading experiment, the optimal output power of different configurations half-cell modules under two power optimization schemes is analyzed.

光伏（PV）模块的性能受环境变量（尤其是阴影）影响。局部遮挡使光伏模块中太阳能电池的太阳辐射水平不均匀，从而降低了光伏模块的性能，甚至损坏了光伏模块。在这项工作中，使用单二极管模型和Bishop模型详细模拟了各种半电池模块的I–V特性，并分析了正常和遮光条件下的结果。对模块配置的研究包括带有3个旁路二极管的串联-并联-串联连接半电池模块，带有3个旁路二极管的120个半电池串联的配置以及带有5个旁路的120个半电池的串联配置二极管。在仿真中，阴影半电池的工作模式可以清楚地理解。获得了三个模块在不同阴影情况下的电气性能。通过实际的遮蔽实验，分析了两种功率优化方案下不同配置的半电池模块的最佳输出功率。