Reverse bias test of c-Si single-cell PV modules

Y. Jin; K. Ikeda; T. Doi

doi:10.1117/12.893407

13 September 2011 Reverse bias test of c-Si single-cell PV modules

Y. Jin, K. Ikeda, T. Doi

Proceedings Volume 8112, Reliability of Photovoltaic Cells, Modules, Components, and Systems IV; 81120Y (2011) https://doi.org/10.1117/12.893407
Event: SPIE Solar Energy + Technology, 2011, San Diego, California, United States

Abstract

As new methods to test degradation of c-Si single-cell PV modules, we carried out both reverse bias constant current (RBCC) test and IV duty cycle (IVDC) test under different loading levels, that is, input power to the cell. The common failure modes of field PV modules, such as finger electrodes discoloration, inflated back sheet, and burnt back sheet in the modules, were observed. It was found that cell's series resistance (Rs) increases approximately linearly with testing time, and the rate of change of Rs increased exponentially corresponding to the loading level. In the RBCC test, it was also found that cell's shunt resistance (Rsh) decayed exponentially with time, and then it approaches to constant value. Furthermore, threshold level for occurrence of breakdown breakage of the cells was found to be about 70 to 80 watt. The methods presented here demonstrated the possibility of applying the reverse bias test for degradation of c-Si single-cell PV modules.

Citation Download Citation

Y. Jin, K. Ikeda, and T. Doi "Reverse bias test of c-Si single-cell PV modules", Proc. SPIE 8112, Reliability of Photovoltaic Cells, Modules, Components, and Systems IV, 81120Y (13 September 2011); https://doi.org/10.1117/12.893407

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available