Simulation control circuit for realizing automatic sun tracking function of photovoltaic support

• Main Authors: DING HONGLIANG, LIAO MIAN, KONG LINGYUN
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2014
• Subjects: CONTROLLING; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES

Provided is a simulation control circuit for realizing an automatic sun tracking function of a photovoltaic support. The simulation control circuit is composed of a horizontal angle control module (1), a pitching angle control module (2), a DC motor driving module (3), a low illumination detection module (4), automatic east-oriented rotation control module in case of no illumination (5) and a reference voltage generation module (6). The circuit mainly comprises four operational amplifiers, six comparators, six XOR logic gates, one motor driving chip, one Hall switch and one reference voltage source. According to the invention, by sampling short circuit current of a photovoltaic battery sheet, the sunshine intensity is detected in real time, the rotation of a horizontal plane rotation support around a vertical shaft for horizontal angle adjustment is finally realized, and the rotation of an inclined surface shaking support around a horizontal shaft for pitching angle adjustment is realized so that the orientat