Analysis of Non-uniformity of Irradiance Measurement Uncertainties of Pulsed Solar Simulator

The conversion efficiency measurement accuracy of solar cell is heavily rely on the measurement uncertainty of pulsed solar simulator. The measurement uncertainty assessment method of pulsed solar simulator is widely analyzed and studied. This paper describes uncertainty assessment method of measurement of irradiance non-uniformity which is one of the three most important factors(spectral mismatch, non-uniformity of irradiance and instability of irradiance) influencing pulsed solar simulator measurement uncertainties. An experiment using a real pulsed solar simulator was performed to testify the validity of uncertainty assessment method. The results provide a theoretical and data basis for further analysis of overall uncertainties of solar simulators.