A non-iterative technique for determination of solar cell parameters from the light generated I-V characteristic

Abstract

Accurate information about electrical parameters of a photovoltaic (PV) cell is many times essential for evaluating the performance of the cell when delivering power at its full capacity. This paper presents a technique for determining the cell parameters from the light generated current–voltage (I-V) characteristic with a valid assumption for any kind of cells. The technique neither involves any initial approximations nor iteration processes. The technique is employed for various PV cell technologies such as silicon, copper indium gallium selenide, organic, dye sensitized solar cell, and organic tandem cells, previously available in the literatures. Obtained I-V characteristics for the cells using the present technique are in well agreement with those of reported in the literature. The technique is further extended for the analysis of a silicon cell and a silicon module tested in the laboratory and the results obtained are very close to those of the experimental data.

Optimal parameters estimation and modelling of photovoltaic modules using analytical method

“…Then, the PV cell parameters were directly extracted by fitting the analytical expression with the experimentally measured data. In [36], the authors presented a technique for determining the PV cell parameters using the light generated I-V curve based on an assumption for different technologies of the PV cells. This technique neither involved an initial approximations nor included an iteration processes.…”

“…In [36], the authors presented analytical technique in order to estimate all parameters without any initial approximations or iterations. Also, this analytical technique was employed for estimating parameters of different PV cells technologies.…”

“…An unsuitable choice of bad initial parameters leads to increase the iteration number and sometimes leads to a divergence of the optimal solution [9, 36, 54]. In this section, literature on the analytical solutions are discussed to obtain the initial values for the numerical employed algorithm.…”

Prediction of current and the maximum power of solar cell via voltage generated by light and irradiance using analytically invertible function

“…In order to designer for optimizing the photovoltaic system performance and maximizing the effectiveness of the system, not only the output characteristics in form of output current-output voltage of PV should be measured, but also the accurate modeling of PV modules is of primary concern (Gaurav and Panchal, 2013;Junyan et al, 2013;Lambert et al, 2013). Works reported recently in the literatures have described many unified model for predicting output current with output voltage of PV system.…”

Two methods for extracting the parameters of a non-ideal diode

“…temperature and solar irradiance), the efficiency of energy conversion has drawn the most attention in PV system design (Hussein et al, 1995;Chun and Kwasinski, 2011;Kumar and Panchal, 2013). The solar cell behavior under illumination is interpreted by several models; whose the equivalent electrical circuit based on single diode is the most widely used (Kumar and Panchal, 2013;Fathabadi, 2013;Rajasekar et al, 2013). Although the one-diode model is considered accurate, it is often times elaborated in order to follow the behavior of solar cells more adequately.…”