Abstract
In applications with low-energy conversion efficiency, maximizing the output power improves the efficiency. The maximum output power of a solar panel depends on the environmental conditions and load profile. In this paper, a method based on simultaneous use of two fuzzy controllers is developed in order to maximize the generated output power of a solar panel in a photovoltaic system: fuzzy-based sun tracking and maximum power point tracking. The sun tracking is performed by changing the solar panel orientation in horizontal and vertical directions by two DC motors properly designed. A DC-DC converter is employed to track the solar panel maximum power point. In addition, the proposed system has the capability of the extraction of solar panelI-Vcurves. Experimental results present that the proposed fuzzy techniques result in increasing of power delivery from the solar panel, causing a reduction in size, weight, and cost of solar panels in photovoltaic systems.
Highlights
Nowadays, photovoltaic systems are rapidly expanding and have an increasing role in power-generation technology
Temperature, and maximum output power are extracted for each curve
Fuzzy-based sun tracking was applied and it is observed that 11 W was approximately attained during the measurement period, which is about 24.5 percent of the nominal output power
Summary
Photovoltaic systems are rapidly expanding and have an increasing role in power-generation technology. The reason is that they provide more secure power sources and pollutionfree electric supplies They generally have nonlinear I-V curves with solar irradiance and temperature dependency. Two methods are generally used to increase solar panels output power in photovoltaic systems. The system requires a sun tracker to track the sun position for increasing the received solar irradiance by the panels This method is used for medium- to high-scale photovoltaic systems and has a high cost [1, 2]. The solar panel is placed on its best orientation toward the sun, and its maximum output power will be attained In this way, two separate controllers are required to perform the tasks of sun and maximum power point tracking.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
