Direct Sunlight Primary Calibration Results in Photovoltaic Cells of Inter-laboratory Proficiency Testing

摘要

The accuracy of measurement of photovoltaic (PV) cell and module is being paid more and more attention in the world. Many interlaboratory comparison projects had been carried out to improve and establish photovoltaic scale and traceability since 1990's. In recent years, interlaboratory proficiency testing for primary reference cell calibration was held by National Institute of Advanced Industrial Science and Technology (AIST) of Japan From 2013-2014. Five PV laboratories participated in the primary calibration comparison in this proficiency testing project. A direct sunlight method for primary PV cell calibration is adopted by Institute of Electrical Engineering, Chinese Academy of Sciences (IEECAS). The calibration procedure of direct sunlight method is detailed described in this paper. The proficiency testing results of crystalline silicon reference cells of IEECAS are "Satisfactory".