Aside from the terrestrial magnetic field that is generated from the earth core, power transmission, and distribution lines, transformers and other equipment do produce a certain amount of magnetic field that could interfere with the performance of photovoltaic modules. This study conducted an experiment and investigated the performance of a silicon photovoltaic module subjected to a magnetic field. The current-voltage and power-voltage characteristics were plotted in the same axis system and allowed us to find, as a function of the magnetic field, the electrical parameters of the photovoltaic module such as maximum electric power, fill factor, conversion efficiency, and charge resistance at the maximum power point. These electrical parameters were then used to calculate the series and shunt resistances of the equivalent circuit of the photovoltaic module. The results have shown that the efficiency of a solar module is affected by the presence of magnetic fields. However, the magnitude of ambient magnetic field generated by power transmissions lines and other equipment is extremely low (in the order of 10−2 mT or less) as compared to the values of the magnetic field used in this study. That made it difficult to conclude as to the impact of such field on solar photovoltaic installations.

中文翻译：

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磁场作用下硅光伏组件的性能研究

除了地心、输配电线路产生的地磁场外，变压器和其他设备确实会产生一定量的磁场，可能会干扰光伏组件的性能。本研究进行了一项实验并研究了受磁场影响的硅光伏模块的性能。电流-电压和功率-电压特性绘制在同一轴系统中，使我们能够找到作为磁场函数的光伏模块的电气参数，例如最大电功率、填充因子、转换效率和最大功率点充电电阻。然后使用这些电气参数来计算光伏模块等效电路的串联和并联电阻。结果表明，太阳能模块的效率受磁场存在的影响。然而，与本研究中使用的磁场值相比，输电线路和其他设备产生的环境磁场强度极低（大约为 10-2 mT 或更小）。这使得很难得出这样的场对太阳能光伏装置的影响的结论。与本研究中使用的磁场值相比，输电线路和其他设备产生的环境磁场强度极低（大约为 10-2 mT 或更小）。这使得很难得出这样的场对太阳能光伏装置的影响的结论。与本研究中使用的磁场值相比，输电线路和其他设备产生的环境磁场强度极低（大约为 10-2 mT 或更小）。这使得很难得出这样的场对太阳能光伏装置的影响的结论。