A distributed network modelling Approach for spatially-resolved characterisation of photovoltaic modules

Authors: X. Wu, M. Bliss, A. Sinha, TR. Betts, R. Gupta, R. Gottschalg

9th Photovoltaic Science Application and Technology (PVSAT-9), Swansea, UK, pp. 49-52, April 2013

The application of distributed modelling technique is becoming popular in characterisation of photovoltaic (PV) modules for its ability to investigate localised behaviour. A PV module is a 3D device in which there may be considerable inhomogeneities that can cause spatially non-uniform performances and hence, mismatches. Consequently, a distributed model containing the spatial information is required to accurately describe the performance of modules. This work presents a flexible, distributed network simulation engine that introduces a hierarchical architecture and a PV-oriented nodal analysis method. The module is split down to sub-cells, enabling the spatially-resolved and quantitatively analysis of electrical properties such as current generation or absorption, operating voltage, series resistance, shunt resistance, etc. It shows that this distributed network modelling approach is a promising tool in the characterisation of PV modules.

Paper: pvsat.org.uk/PVSAT-9_Proceedings-FINAL.pdf

Draft: https://www.researchgate.net/publication/237353051

elecMod_wu_4

Flowchart shows the computational process for obtaining and operating point of a cell