Development of a photovoltaic characteristics generator based on mathematical models for four PV panel technologies

Abstract

A good study of photovoltaic system requests to have very precise 
 current-voltage characteristic curves of photovoltaic modules for different technologies. The photovoltaic emulator provides an efficient solution to maintain the same current-voltage output of photovoltaic module. It includes three parts: the PV model, the control strategy, and the power converter. This paper provides three classes of modeling and simulation of photovoltaic arrays and presents the synthesis results of the current-voltage characteristic performances obtained by the modeling approaches. The models of the first class are based on electrical circuit model, those of the second class are based on multiple straight lines model, and for the third class, it is based on the look up table. The mathematical model is built using MATLAB/ Simulink, and an experimental bench was carried out to acquire an up-to-date and representative experimental database of four PV panels. This database is used for the validation of these models for the different PV panel technologies under Moroccan meteorological conditions. Following this comparative study, we came to a high agreement between the experimental and simulated current-voltage characteristics for the emulator under study.

Design and implementation of an I-V curvetracer dedicated to characterize PV panels

“…The solar cell is a nonlinear device [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] and can be represented as a current source model, as shown in Figure 1. In our case, a photovoltaic panel is constituted of 36 solar polycrystalline cells in series (Kyocera LA 361 K51) tilted at 35° angle facing south.…”

“…PV panel is characterized by its current-voltage (I-V) curve. Different models of solar cells were presented in literature [3][4][5][6][7][8][9][10]. The relationship of current -voltage (I-V) for a photovoltaic panel is [11,12]:…”

“…Open circuit voltage V OC ; Int J Elec & Comp Eng ISSN: 2088-8708  Design and implementation of an I-V curvetracer dedicated to… (Mansour Zegrar)2013Standard conditions are insulation Es=1kW/m 2 , corresponding to Es=1 sun, and temperature T=25 °C. Figure2shows for our panel as shown in the Table1the I-V curves at different levels of insulation (at T=25 °C)[5][6][7][8][9][10]. The photovoltaic panel characteristics, like any other semiconductor component is affected by temperature change.…”

“…The photovoltaic panel characteristics, like any other semiconductor component is affected by temperature change. I-V obtained characteristics are shown respectively on Figure 3[3][4][5][6][7][8][9][10].…”

Ecological impact due to the implementation of a modeled and optimized hybrid system

“…The device in question is illustrated in the Figure 2. The system is composed of three main elements, PV generator [11], chopper and the control system. a.…”