In this study, a multi-channel I–V curve tracer with the capability of measuring multiple photovoltaic (PV) modules has been proposed. An adaptive-sampling-rate method has been developed to enhance the I–V tracer's performance in terms of acquisition speed and data resolution in which enables the tracer to measure the I–V curve for a wider range of current and voltage with higher measurement points. This is important to provide rapid comparison and identification of faults that may have occurred in one or more PV modules. A low-cost prototype was built using an Arduino-based microcontroller, and the experimental tests were performed with 30 PV modules. The simulation and experimental results verified the performance and functionality of the proposed I–V curve tracer.

中文翻译：

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多通道光伏电流-电压（一世–V）自适应采样率方法的曲线追踪器

在这项研究中，多渠道 I–V已经提出了具有测量多个光伏（PV）模块能力的曲线示踪剂。已经开发了一种自适应采样率方法来增强I–V 示踪剂在采集速度和数据分辨率方面的性能，使示踪剂能够测量 I–V曲线可在更大的电流和电压范围内提供更高的测量点。这对于快速比较和识别一个或多个PV模块中可能发生的故障非常重要。使用基于Arduino的微控制器构建了一个低成本原型，并使用30个PV模块进行了实验测试。仿真和实验结果验证了所提出方案的性能和功能。I–V 曲线追踪器。