Performance Evaluation of Analytical Methods for Parameters Extraction of Photovoltaic Generators

Abstract

This paper presents a concise exploration of several analytical methods for extracting the parameters of the single-diode model (SDM) of a photovoltaic (PV) module under standard test conditions (STC). The paper investigates six methods and presents the detailed mathematical analysis leading to the development of each method. To evaluate the performance of these methods, MATLAB-based software has been developed and deployed to synthesize the results of each method when used to extract the SDM parameters of various PV test modules of different PV technologies. Similar software has also been developed to extract the same parameters using well-established numerical and iterative techniques. A comparison is subsequently made between the synthesized results and those obtained using numerical and iterative methods. The comparison indicates that in spite of the fact that analytical methods may involve fair amount of approximations, their accuracy can be comparable to that of their numerical and iterative counterparts, with the added advantage of significant reduction in computational complexity, and without the initialization and convergence difficulties, which are normally associated with numerical methods.

A Study of MPPT Charge Controller Roles in Photovoltaic Energy Management

“…Table 1 shows the PV module parameters which is LC50-12M Mono crystalline. The parameters value for PV module was taken from previous journal [22]. The DC voltage source is used to model the current source and it easy to run the simulation in PROTEUS to get the result.…”

“…Equation 6 is diode thermal voltage that defined in terms of electronic charge, Boltzmann's constant and temperature in kelvin. From the previous article, it said that the value of thermal voltage in room temperature is 26mV [22].…”