About group

In diagnostics of photovoltaic systems, the team deals with:

  • LBIV (Light Beam Induced Voltage) - scanning PV cell layers to detect defects using local irradiation with monochromatic light of different wavelengths.
  • Measurement of I-V curves and parameters of PV cells and modules under various conditions on a professional cell tester PASAN IIb and module tester PASAN HighlightPro+.
  • Evaluation of PV cells characteristics temperature dependence (irradiated and dark).
  • Measurement of AC parameters of the PV cells and modules.
  • Thermography of PV cells and modules.
  • Electroluminescence testing.

As part of the operation and optimization of PV systems, the group’s research is mainly concerned with the design of energy units for the efficient use of photovoltaics and storage, either in the form of electrochemical sources or other possible sources of flexibility (e.g. heat/cold).

Purpose

Diagnostics of photovoltaic systems provides information about the behavior of PV systems in real and simulated conditions. With regular diagnostics, it is possible to optimize the operation of the PV system and the power plant, thus ensuring its longer service life and yield.

The field of diagnostics of photovoltaic cells provides information on the influence of cell design and technology on the resulting characteristics and parameters. The information obtained forms feedback for manufacturers and contributes to the improvement of the production of photovoltaic cells.

The area of monitoring the operation of the photovoltaic system deepens the knowledge about the behavior of the PV system in real world conditions and contributes to operational optimization.

Our Research Projects

  • The development of diagnostic methods for process control in the manufacture of photovoltaic cells.
  • Comparison of diagnostic methods.
  • Studying the influence of recombination centers on the parameters of the photovoltaic cells.
  • Measuring the homogeneity of the rate of recombination in the different layers of the PV cells.
  • Analysis of the temperature dependence of the various parameters of the PV cells.
  • Studying the influence of radiation intensity on the parameters of the PV modules.
  • The implementation of the simulated PV system.
  • Improving the quality of online monitoring of the PV system operation when meteorological data is included in the set of monitored parameters.
  • Evaluation of the influence of operating conditions on the performance and efficiency of the PV system.
  • Displaying the operational variables of the demonstration PV system on-line on the Internet.

Responsible person Ing. Mgr. Radovan Suk