This thesis investigates impedance measurement methods specifically for photovoltaic (PV) modules, with the aim of identifying techniques that improve measurement accuracy across different environmental conditions. A comprehensive review of existing literature on impedance measurement techniques lays the foundation, followed by a detailed description of the experimental setup and methodology. Impedance measurements were conducted on "Longi" and "Solitek SOLID PRO" PV modules under identical conditions.
The study evaluates various measurement techniques, highlighting the criteria for selecting the most suitable approach and documenting the equipment and on-site setup used. Analysis of the data provides, insights into the impedance characteristics of the tested modules, particularly with respect to environmental influences. The findings suggest that controlled laboratory conditions yield more consistent impedance measurements due to reduced variability from external factors, such as humidity and temperature.
This research emphasizes the significance of humidity and temperature control for achieving accurate impedance results, noting that fluctuations in these factors can impact measurement reliability. While this study offers valuable contributions to PV module performance assessment and presents a systematic approach for future applications, limitations include the lack of direct moisture measurements, which restricts precise conclusions regarding environmental impact. The robust framework developed here aims to support future studies and practical applications in PV module performance optimization.