Positioning control of square arrangements of solar panels by solar tracing using fuzzy logic

Abstract

In this project a fuzzy control system is developed to follow the sun with its respective dynamics.  The positioning of the panel must take into account changes in the weather, the disturbances that may occur, the area in which the tracker is located and so on.  To do this, the maximum capture point positioning control system is studied using fuzzy logic.  Prior to design and implementation, corresponding design criteria were established in instrumentation, mechanical structure, control, communication, and processing for prototype development.  By means of the above, the photovoltaic array positioning system is designed, to then carry out the efficient implementation thanks to the calculations and adjustments made.  After having the physical structure, we start to develop the positioning control of quadruple arrangements of solar panels with two degrees of freedom per maximum point of capture of solar radiation using fuzzy control, taking into account that the radiation sensors give a reference point. for the setpoint in the control loop and after this, control signals are sent to the selected actuators.  Finally, the control system is validated for the positioning of the tracker with the fuzzy control loop implemented; In addition, the system is compared with the strategy implemented before a static system in order to analyze its efficiency.  In order for the solar tracking system to show greater efficiency compared to the static system, radiation sensors are implemented that compensate for the influence of climatic disturbances that any solar panel tends to suffer.