Design of Electronic Control Board to Obtain the Photovoltaic Module Power Voltage Curve as Temperature Function

摘要

The test, construction and design of an electronic circuit in order to obtain the photovoltaic module power voltage curve as a function of temperature is reported. The electronic circuit permits to capture the current and voltage variables, processing the electrical signals and determines the power. After using a commercial plotter, the characteristic curve of photovoltaic module is drawn as a function of temperature level. This information is used for the engineers who design a photovoltaic system, to supply electric energy from solar energy, for activating any electrical, electronic or electro mechanical equipment. The electronic circuit was made using electronic and electrical components bought in Mexico. Experimental results indicate that the developed electronic circuit works fine and agrees with the technical design, and it can measure photovoltaic modules from 1 to 50 W from the short circuit condition to the open circuit condition at 23 V with the current level varying between 0-2 A, with a measurement error of about 1%.