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The single-axis tracking system is a linked type solar tracking device used in photovoltaic (PV) power plants. Through a single-axis rotating structure, the system allows PV modules to roughly follow the sun's azimuth from east to west throughout the day, helping to improve the power generation efficiency of the PV array. The system employs a linkage design, which links multiple tracker into one set. The tracker control unit supports multiple power supply methods and communication protocols, making it suitable for power plant projects of varying sizes and terrain conditions.
Product Description
This system employs a control strategy combining closed-loop time control and GPS signals. An MCU calculates the theoretical solar position and drives push rods to rotate the module support within a ±50° range. Tracking accuracy is typically within 2°. Equipped with an anemometer, the system automatically stow to a protective position when strong winds are detected, reducing the impact of wind loads on the structure. For potential shading between modules during early morning or late evening, the system supports back tracking, which can reduce power generation losses caused by shading to some extent. The structural design references wind tunnel test data and dampers can be selected according to project requirements to reduce the possibility of resonance under specific wind conditions. The control system has an IP65 protection rating and can operate in ambient temperatures ranging from -30°C to 65°C.
Product Components
05 Swing Arm
06 Damper
07 Column
Advantage
▶ High-capacity design:
The linked structure allows each tracker unit to install more strings in each set, reducing the number of drives per megawatt.
▶ Stability assistance:
The dampers help suppress system resonance under specific wind conditions.
▶ Multi-Row control and monitoring:
Multi rows of solar trackers can be controlled in one set of tracking control unit. The control system supports real-time monitoring of tracker operation status, helping to promptly detect anomalies and reduce potential power generation losses.
▶ Intelligent tracking logic:
Based on real-time data and meteorological information (in conjunction with an anemometer), the tracking angle can be dynamically optimized to improve solar energy utilization efficiency.
▶ Structural design basis:
Targeted structural design based on wind tunnel test results helps improve the system's wind resistance stability throughout its entire life cycle.
Tracker Structure
| Tracking Technology | Horizontal Single Axis Tracker |
| System Voltage | 1000V/1500V |
| Tracking Range | ±50° |
| Working Wind Speed | 18 m/s (Customizable) |
| Max. Wind Speed | 55 m/s (Customizable) |
| Modules per Tracker | ≤120 Modules (Customizable) |
| Principal Materials | Hot-Dip Galvanized Q235B/Q355B, Zn-Al-Mg Coated Steel |
| Mean Coating Thickness | >80μm |
| Drive System | Linear Actuator |
| Foundation type | PHC/Cast-in-Place Pile/Steel Pile |
Control System
| Control System | MCU |
| Tracking Mode | Closed Loop Time Control+ GPS |
| Tracking Accuracy | <2° |
| Communication | Wireless (ZigBee, LoRa); Wired (RS485) |
| Powder Acquisition | External Supply/StringSupply/Self-Powered |
| Auto Stow at Night | Yes |
| Auto Stow During High Winds | Yes |
| Optimized Backtracking | Yes |
| Protection Degree | IP65 |
| Working Temperature | -30°C~65°C |
| Anemometer | Yes |
| Power Consumption | 0.3kWh per day |
Applicable Scenarios
▪ Large-scale ground-mounted photovoltaic power plants (flat or slightly undulating terrain)
▪ Mid-to-high latitude regions, areas with significant variations in solar azimuth angle
▪ Power plants with a desire to reduce the frequency of operation and maintenance inspections
Important Notes:
▪ The operating wind speed of 18 m/s is a standard reference value. In actual projects, customized designs can be implemented based on local wind frequency distribution. It is recommended to conduct a specialized wind engineering assessment in areas with complex wind fields.
▪ Wind resistance of 55 m/s corresponds to ASCE. Standard 7-10: Design wind speed standards may vary depending on the project location; please verify according to local regulations.
▪ The maximum number of solar module depends on module size and weight; actual configuration requires calculation and confirmation based on drive system and structural load.
▪ Additional anti-corrosion measures may be necessary in highly corrosive environments (such as coastal areas or highly polluted industrial zones).
▪ Typical operating power consumption is approximately 0.3kW·h/day; actual consumption will be affected by tracking frequency, communication method, and nighttime reset.
▪ The automatic high-wind reset function relies on anemometer signals; regular anemometer calibration is recommended to avoid malfunctions or response delays.
▪ The back tracking function can reduce shading during early morning and evening hours, but it cannot completely eliminate shadow effects due to array spacing and terrain limitations.
Summary
This linked type single-axis tracking system combines a linked structure, closed-loop time control and GPS tracking, multi-point communication, and multiple power supply methods, making it suitable for various types of photovoltaic power plants.
The system design incorporates wind tunnel test data, damper selection, independent monitoring, and fault warning systems to balance power generation enhancement with operational stability. Overall, this is a single-axis tracking product with significant advantages in engineering practicality, environmental adaptability, and customizability.
Solar First Project Reference
This product is a horizontal single-axis tracking system, primarily used in photovoltaic power plants to support and drive the solar module array to follow the sun. The system employs independent control and a modular design, reducing the amount of foundation piles required under certain terrain conditions and ensuring compatibility with current mainstream large-size modules. Its overall structure has been verified through wind tunnel testing and is suitable for various ground-mounted power plant scenarios.
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This product is a horizontal single-axis tracking system, primarily designed for ground-mounted photovoltaic power plant scenarios. The system employs a multi-point drive design to enhance the structure's torsional resistance and critical wind speed levels. It can adapt to continuous undulations and irregular terrain, and meets installation requirements with a maximum north-south slope of 15%.
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This product is a dual-axis tracking system that allows photovoltaic modules to be more effectively aligned with the sun's position through angle adjustments in both horizontal and vertical directions. Compared to fixed brackets or single-axis tracking systems, the dual-axis design can achieve higher solar energy reception potential in different seasons and at different times. The system adopts a modular unit layout, with each tracking unit independently driven and equipped with remote monitoring capabilities, making it suitable for ground-mounted power plant scenarios with high requirements for power generation output.
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The single-axis tracking system is a linked type solar tracking device used in photovoltaic (PV) power plants. Through a single-axis rotating structure, the system allows PV modules to roughly follow the sun's azimuth from east to west throughout the day, helping to improve the power generation efficiency of the PV array. The system employs a linkage design, which links multiple tracker into one set. The tracker control unit supports multiple power supply methods and communication protocols, making it suitable for power plant projects of varying sizes and terrain conditions.
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The tilted single-axis tracking system is an intelligent tracking solution suitable for photovoltaic power plants. This system uses a single-axis rotation mechanism to allow photovoltaic modules to track changes in the sun's azimuth angle around a tilted axis, thereby improving solar energy reception efficiency at different times. The system is optimized for complex terrain conditions and can be deployed on uneven sites such as mountains and slopes, providing photovoltaic projects with an option that balances increased power generation with engineering adaptability.
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