Title :
Curve fitting solar cell degradation due to hard particle radiation
Author :
Gaddy, Edward M. ; Cikoski, Rebecca ; Mekadenaumporn, D.
Author_Institution :
Goddard Space Flight Center, Greenbelt, MD, USA
Abstract :
This paper investigates the suitability of the equation below for accurately defining solar cell parameter degradation as a function of hard particle radiation. Y = Y/sub o/ + C/sub 1/ * Log(1 + /spl phi///spl phi//sub x/) + C/sub 2/ * Log(1 + /spl phi///spl phi//sub y/). The paper uses the Levenberg-Marquardt method for determining the constants in the equation and compares predictions from the equation to those obtained by polynomial fits: Y = /spl Sigma/(a/sub i/ * [In(/spl phi/)]/sup i/).
Keywords :
curve fitting; radiation hardening (electronics); solar cells; Levenberg-Marquardt method; curve fitting; hard particle radiation; solar cell degradation;
Conference_Titel :
Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Print_ISBN :
4-9901816-0-3
