Electrical Performance Results Comparison of Photovoltaic Module between Two ISO 17025 Certified Laboratories

Abstract:

The goal of I-V characteristic measurement of photovoltaic (PV) module is to reduce uncertainty not only for PV laboratories but also for manufacturers. This paper presents the results comparison and data analysis between two PV laboratories. Even though both laboratories have obtained the ISO 17025 certificate, the I-V results show inevitable deviation. The cause of deviation depends on photovoltaic scale traceability of laboratory, system bias, internal quality control measures and other uncertainty sources. The analysis also shows that the PV scale traceability is the most important factor to reduce result deviation among laboratories and measurement uncertainty. The various contributions to the result deviation are critically illustrated for different traceability chains. Besides, the calibration method of reference photovoltaic devices (reference cell or module), spatial uniformity of irradiance and I-V data acquisition unit should be paid more attention as well.

• Periodical: Applied Mechanics and Materials (Volumes 672-674)
• Pages: 48-53
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.672-674.48
• Online since: October 2014
• Authors: Hai Tao Liu*, Xin Jing Zou, Yong Hui Zhai
• Keywords: Module, Photovoltaic, Simulator, Spectral Response

References

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