Performance of Photovoltaic Panels with Different Ages Under Outdoor Conditions
Description
This dataset, includes measurements of voltage, current, characteristic parameters, temperature, and irradiance of two photovoltaic panels refrences. Seven polycrystalline photovoltaic panels (10 W) with over 10 years of use from the brand ERDM, model Hybrytec 10/12, and a new Restarsolar photovoltaic panel, model RT010P (10 W) were measured. The information is organized into two folders: "RawData" and "ProcessedData". The files within the RawData folders contain the voltage [V] and current [A] panel vectors (V and I) delivered by the oscilloscope, as well as the temperature data [°C] and irradiation [W/m2] measured at the time of the test (T and G); on the other hand, the files within the ProcessedData folder include the voltage [V] and current [A] data of the panel necessary to reproduce the I-V and P-V curves (V and I) and some data of interest extracted from the curves I-V, P-V, such as the open circuit voltage (Voc) [V], short circuit current (Isc) [A], maximum power point current (Impp) [A], maximum power point voltage (Vmpp) [V] and power in that point (Pmpp) [W]. This dataset could be used in studies to compare the performance of different parameter estimation methods of circuit models of photovoltaic panels, they could help to develop predictive models for energy generation and enhance the accuracy of photovoltaic simulations and additional experimentation and comparative analysis could be conducted to examine the PV power degradation rate based on the electrical parameters of the tested datasets. The names of the files in the “RawData” folders follow the format: RefCurve_yyyy-mm-dd_s_hhmmss.Wfm.csv; and the "ProcessedData" files corresponds to each panel reference and panel number: ERDM_Px.mat (where x refers to panel number).
Files
Steps to reproduce
The data of the “RawData” folders was gathered using a BK8514 electronic load from B&K Precision performed a voltage sweep from 0 V to the open-circuit voltage (Voc) at the photovoltaic panel terminals. The electrical measurements were recorded using an R&S RTE1204 oscilloscope equipped with a current probe. Temperature and irradiance were measured using a FLK-IRRI-SOL sensor. To obtain de ProcessedData, these data were converted into column vectors in MATLAB, where the corresponding I-V curves were plotted. Then, a range of data was selected to extract only the information of a single curve. Subsequently, using a moving average filter the data was reduced to 200 points, preserving the curve's shape. The obtained curves were interpolated to determine the Voc and Isc values. Finally, the power of the panel was calculated as Ppanel=Vpanel∙Ipanel, and the values corresponding to the maximum power point (MPP) were determined, including (Pmpp, Vmpp, and Impp)
Institutions
- Tecnologico Pascual Bravo
- Instituto Tecnologico Metropolitano