AESOLAR teams up with Fraunhofer CSP for shade-resistant PV module research
The collaborative research project, which will run through 2025, is funded by the Federal Ministry of Economic Affairs and Climate Action in Germany.
New MPPT approach for multi-string PV systems under partial shading
Egyptian researchers have developed a multi-string PV system with a converter control strategy, achieving 99.81% efficiency with a direct duty cycle for maximum power point tracking (MPPT).
Shingled solar modules and shading
Scientists at Germany’s Fraunhofer Insititute for Solar Energy Systems (ISE) evaluated the performance of its newly introduced ‘Matrix’ approach to interconnecting shingled solar cells. The institute finds that, thanks to optimized current flows, energy yield of the Matrix approach could almost double that of standard shingled cell interconnection under random shading conditions.
Simplified modeling for partially shaded PV systems
A proposed two-diode model is based exclusively on the standard test condition parameters of solar modules and their irradiance levels. The analytical tool reportedly enables PV system operators to estimate the I-V curves of a shaded array quickly and accurately.
Mitigating shading in PV modules with new reconfiguration technique
Scientists in India are seeking to mitigate partial shading with a technique based on the Lo Shu nine-square grid of ancient Chinese mathematical tradition. Their approach features the ‘magic grid’ also used in popular sudoku puzzles, as a guide for reconfiguring arrays.
Predicting the I-V characteristics of PV systems under partial shading
Researchers in Tunisia have proposed a method of determining the characteristic I-V profile of a partially shaded PV module, and to extrapolate it into a string profile.
