Efficiency measurements of different types of solar cells in dependence on the irradiation conditions
Abstract
Experimental measurements on a number of Si-solar cells show, in good agreement with theoretical calculations, that the series resistance and the diode quality factor are the most important parameters characterizing the dependence of the cell efficiency on the insolation level. Both monocrystalline and polycrystalline cells were tested and found to give similar results. Variations in the spectral distribution of the insolation may cause changes of about 10 percent in the efficiency. In operation, maximum power tracking or a simple constant bias voltage mode is possible. Outdoor measurements show that by setting the bias voltage in the right range, more than 92 percent of the maximal energy can be obtained without power tracking.
- Publication:
-
5th Photovoltaic Solar Energy Conference
- Pub Date:
- 1984
- Bibcode:
- 1984pvse.conf..652K
- Keywords:
-
- Energy Conversion Efficiency;
- Insolation;
- Irradiation;
- Solar Cells;
- Diodes;
- Electric Potential;
- Electrical Resistance;
- Polycrystals;
- Q Factors;
- Single Crystals;
- Energy Production and Conversion