PV Tracker System
Jiangsu Guoqiang Singsun Energy Co., Ltd. is located in Liyang, Changzhou City, Jiangsu Province. It has more than 1300 employees and belongs to Jiangsu Guoqiang Group, one of the top 500 Private Enterprises in China. GQ Singsun ,focusing on providing advanced intelligent PV tracking solution supporting system and intelligent manufacturing service provider, is a global clean energy science and technology enterprises, is committed to promoting energy change, constantly optimize the energy infrastructure and the applications of the materials, to build a better future for human being. It has accumulated over 30 GW production and installation of pv support system.
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Solar tracker, a system that positions an object at an angle relative to the Sun. The most-common applications for solar trackers are positioning photovoltaic (PV) panels (solar panels) so that they remain perpendicular to the Sun's rays and positioning space telescopes so that they can determine the Sun's direction.
Benefits of PV Tracker System
More productivity
Solar energy trackers enhance the productivity of solar panels. It is due to the elevated level of direct exposure to sunlight. The productivity depends on the geographic location of the installation.
Simple & eco-friendly energy
Solar energy trackers are convenient devices to track the sun for better energy output. The increased output offers a sustainable power source for our requirements.
and optimization
Solar trackers are significant land optimisation tools. They can generate more electricity than the installations devoid of tracking systems and occupy the same amount of land.
Easy monitoring
You can easily monitor the working of your solar tracking system from your PC right away.
Types of PV Tracker System
Single-axis solar trackers
A single-axis tracker is a solar panel adjustment device rotating around a single axis, typically aligned in the North-South directions. This device facilitates the movement of solar panels in synchronization with the sun's trajectory, enabling them to track its path from East to West as it rises and sets.
Single-axis solar trackers enhance solar panel performance by optimizing sun exposure, particularly during spring and summer when the sun is higher. However, their effectiveness diminishes further north due to greater solar angle variance between summer and winter. Additionally, performance drops during times when the sun is in a more horizontal position. In higher latitudes, vertical axis trackers, which can adjust to the sun's lower path, are more effective.
Dual-axis solar trackers
A dual-axis solar tracker enables your panels to rotate on two axes, oriented both north-south and east-west, denominated as the "primary axis" and the "secondary axis." Employing sophisticated algorithms and sensors, it adeptly tracks seasonal alterations and variations in the sun's altitude in addition to the sun's general daily motion. This ability to acclimate to the annual seasons markedly optimizes solar energy production, ensuring steadfast and reliable performance irrespective of climatic conditions.
Dual-axis trackers may be well-suited for specific commercial properties – they can generate up to 45 percent more energy than conventional static panels. This enhanced energy production aids businesses in developing sufficient power to sustain their operations, even with limited rooftop space. Conversely, utility-scale installations typically do not necessitate dual-axis configurations owing to their location on expansive plots of land, devoid of the stringent spatial constraints encountered in commercial rooftop spaces.
Components of PV Tracker System
Tracker Mount
It is the skeletal structure that holds the panel in a properly inclined position.
Driver
It is used to control the rotation of the motor shaft.
Sensors
It is used to detect relevant parameters induced by the sun and yield output.
Motor
It controls the movement of the tracker.
Algorithm
It is used to calculate the sun's position from algorithms using the time, date, and geographical location.
Solar Tracker Driving Systems: Manual, Passive and Active Solar Trackers
The second most important aspect used to categorize a solar panel tracker is its driving system. This is the mechanism used to move the axis to adjust the position of the module. The driving system for solar trackers may be manual, passive or active.
Manual solar tracker
The manual solar panel tracking system is the most basic driving system. Solar trackers featuring this driving system include one or more mechanical joints used to adjust the position of the module, the number of moving parts varies if the solar tracker has a single-axis or a dual-axis.
Passive solar tracker
Passive solar trackers implement a low boiling point compress gas fluid for the actuator in charge of repositioning the module as a result of the unbalanced illumination. As the compressed gas fluid receives partial sunlight, it changes its density by expanding as it boils or contracting as it cools, varying the density and re-establishing the equilibrium in the mounting system.
Active solar tracker
Active solar trackers implement actuators that actively modify the position of the PV module on a single-axis or dual-axis. The actuators used for the driving system in active solar trackers may include an electric motor or a mechanical system comprised of hydraulic cylinders. These systems automatically move the modules to expose them directly to the sun with real-time tracking sensors.
Solar Photovoltaic Technology Basics
Solar cells, also called photovoltaic cells, convert sunlight directly into electricity.
Photovoltaics (often shortened as PV) gets its name from the process of converting light (photons) to electricity (voltage), which is called the photovoltaic effect. This phenomenon was first exploited in 1954 by scientists at Bell Laboratories who created a working solar cell made from silicon that generated an electric current when exposed to sunlight. Solar cells were soon being used to power space satellites and smaller items such as calculators and watches. Today, electricity from solar cells has become cost competitive in many regions and photovoltaic systems are being deployed at large scales to help power the electric grid.
Silicon solar cells
The vast majority of today's solar cells are made from silicon and offer both reasonable prices and good efficiency (the rate at which the solar cell converts sunlight into electricity). These cells are usually assembled into larger modules that can be installed on the roofs of residential or commercial buildings or deployed on ground-mounted racks to create huge, utility-scale systems.
Thin-film solar cells
Another commonly used photovoltaic technology is known as thin-film solar cells because they are made from very thin layers of semiconductor material, such as cadmium telluride or copper indium gallium diselenide. The thickness of these cell layers is only a few micrometers—that is, several millionths of a meter.
Thin-film solar cells can be flexible and lightweight, making them ideal for portable applications—such as in a soldier’s backpack—or for use in other products like windows that generate electricity from the sun. Some types of thin-film solar cells also benefit from manufacturing techniques that require less energy and are easier to scale-up than the manufacturing techniques required by silicon solar cells.
III-V solar cells
A third type of photovoltaic technology is named after the elements that compose them. III-V solar cells are mainly constructed from elements in Group III—e.g., gallium and indium—and Group V—e.g., arsenic and antimony—of the periodic table. These solar cells are generally much more expensive to manufacture than other technologies. But they convert sunlight into electricity at much higher efficiencies. Because of this, these solar cells are often used on satellites, unmanned aerial vehicles, and other applications that require a high ratio of power-to-weight.
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