The principle of the smart photovoltaic tracker is to make the solar panel change with the angle of the sun and always face the sun so that the sun's rays directly hit the solar panel power unit. The use of solar trackers can maximize the power generation efficiency of solar photovoltaic modules. How to choose intelligent tracking bracket and fixed photovoltaic bracket in daily life?
In terms of power station investment, it is necessary to consider the cost and profit factors of the power station, whether to choose a photovoltaic intelligent monitoring bracket or a fixed bracket. If the construction is to increase the site cost by 20%, the production capacity should be increased by more than 30%, so that the traceability system will have considerable benefits. Therefore, for large and medium-sized projects, the benefits of using smart PV tracking media are considerable. Intelligent trackers are generally divided into two categories according to different driving styles: one is motor-controlled automatic tracking; the second is tracking through physical thermal expansion technology (passive tracking).
Through recent years of optical computer software, mechanical structure testing, and theoretical review, the tracker has formed a mature control system. Therefore, astronomical/digital software combined with simple mechanical system management (active tracking) is now commonly used to develop professional and reliable products. Active tracking training is currently the best technical and economical approach compared to other solutions.
In addition, the requirements of photovoltaic smart tracking brackets are similar to other fixed brackets, and the requirements are also strict: the structure is strong to resist wind pressure, snow pressure, earthquakes, mud and corrosion, and has been Capable of operating typically in harsh environments for over 25 years. Additionally, all support and monitoring systems must meet certain standards for the project site, including construction, components, compression specifications, environmental metrics, etc. These metrics are forcing tracker manufacturers to conduct more and more research to find better solutions for solar tracking support systems.
The sensor-based method of tracking solar emission energy is called Photovoltaic Smart Tracking Support System, so it can guarantee the accuracy of sun tracking. But the limitations are also relatively large, only suitable for sunny days. The method of tracking by solar ephemeris data associated with the coordinates of the installation site is called an astronomical algorithm. This mode of operation guarantees higher output power and centralized installation of power plants. This tracking method is also suitable for cloudy conditions and can provide accurate tracking.
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