Stability testing method for solar cell used for calibrating solar simulators
A stability testing method for solar cells used to calibrate solar simulators is proposed.An A+class transient solar simulator is used as the light source for stability testing of solar cells,which can ig-nore the impact of heat generated by illumination on the solar cells.In order to get closer to the actual sit-uation of calibrating the solar simulator,the pulse width of the light source was set to 30 ms,with a measurement interval of 30 s,and a total of 120 measurements were taken.Experimental verification and data analysis were conducted,and during the testing process,the temperature change of the solar cell was relatively small.The test results met the requirement of stability better than 0.2％in JJF 1615.An uncertainty analysis was conducted on the test results,and the extended measurement uncertainty was Urel=0.12％(k=2).This provides a feasible method for high stability testing of solar cells.
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