Description of performance degradation of photovoltaic modules using spectral mismatch correction factor under different irradiance levels. (October 2019)

• Record Type: Journal Article
• Authors: Imai, Yurie; Chantana, Jakapan; Kawano, Yu; Hishikawa, Yoshihiro; Minemoto, Takashi
• Is Part Of: Renewable energy. Volume 141(2019)
• Page Start: 444
• Page End: 450
• Publication Date: 2019-10
• Subjects: Spectral mismatch correction factor -- Spectral response -- PV module irradiance sensor -- Short-circuit current -- Degradation performances -- Irradiance levels; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.renene.2019.04.015
• Languages: English
• ISSNs: 0960-1481

Abstract

Abstract: Outdoor short-circuit current (ISC ) of test photovoltaic (PV) modules, i.e., (1) multi-crystalline silicon, (2) heterostructure-with-intrinsic-thin-layer, (3) single-crystalline silicon back-contact, (4) CuInSe2, and (5) CdTe modules, was evaluated using single-crystalline silicon (sc-Si) PV module as PV module irradiance (Irr) sensor (PVMS). PVMS is used to estimate simultaneous Irr and spectral mismatch correction factor (MMPVMS ). The measured ISC (ISC-meas ) of the test PV modules at outdoor location under various conditions was corrected to the ISC under standard test condition (STC) for the corrected ISC (ISC-corrected ) using the MMPVMS and simultaneous Irr, yielding the description of the degradation of the test PV modules for the credibility of their fabrication technology. Moreover, the estimation of ISC-corrected of the test PV modules under different Irr levels was performed. The ISC-corrected with high precision, close to ISC under STC, was obtained under Irr level of ≥0.2 sun, observed by the PVMS. This leads to the increase the investigation opportunity on both sunny day and cloudy day. The ISC-corrected with the highest precision is moreover obtained under Irr level of ≥0.7 sun. The method using the simultaneous Irr and MMPVMS observed by the PVMS could be applicable under the large fluctuation of the Irr levels. Highlights: The sc-Si PV module is used as PV module irradiance (Irr) sensor (PVMS). Measured ISC of PV modules is corrected for ISC_corrected to standard test condition. ISC_corrected with high precision is obtained under Irr level of ≥0.2 sun. Performance degradation of PV modules can be well described. ISC_corrected with the highest precision is obtained under Irr level of ≥0.7 sun.