A granular modeling method for non-uniform panel degradation based on I–V characterization and electroluminescence imaging
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 162-178 |
| Journal / Publication | Solar Energy |
| Volume | 227 |
| Online published | 9 Sept 2021 |
| Publication status | Published - Oct 2021 |
Link(s)
Abstract
A new model of photovoltaic (PV) panel is proposed. The model precisely replicates sub-cell level degradation, such as cracks and interconnect failures, and reproduces their effect at the panel level I–V characteristic. Moreover, a regression method is proposed, which infers the model's parameters from combination of electroluminescent (EL) image and degraded I–V characteristic. The combination of quantitative (EL image) and qualitative (I–V characteristic) enables to characterize the degradation of the cells embedded in the PV panel, without physical access to the cells. The proposed model and the regression problem is experimentally verified on a set of 3 single cell measurements and a set of 4 crystalline PV panels with various levels of degradation.
Research Area(s)
- Degradation modeling, Evolutionary algorithm, Preventive diagnostics
Citation Format(s)
A granular modeling method for non-uniform panel degradation based on I–V characterization and electroluminescence imaging. / Garaj, Martin; Chung, Henry Shu-Hung; Spataru, Sergiu et al.
In: Solar Energy, Vol. 227, 10.2021, p. 162-178.
In: Solar Energy, Vol. 227, 10.2021, p. 162-178.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
