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This product is a horizontal single-axis tracking support 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%. Each support column operates independently, preventing mutual shading between modules, which facilitates on-site construction and subsequent operation and maintenance. The system is compatible with 182mm and 210mm silicon wafer modules, and can further optimize the tracking angle based on terrain and real-time weather information to achieve better power generation returns in complex environments.
Product Description
The D+ series employs horizontal single-axis tracking technology, covering a tracking range of ±45°, and supports both 1000V and 1500V voltage levels. Drive methods include rotary drive or linear actuators, and foundation types support PHC pipe piles, cast-in-place concrete piles, and steel piles. In terms of structural design, the system upgrades the drive point from a single point to a multi-point layout, distributing the force path and reducing the risk of single-point failure to some extent. Each support column can install up to 120 components (the number can be adjusted according to the project). The main structural materials are hot-dip galvanized Q235B/Q355B steel or zinc-aluminum-magnesium coated steel plates, with an average coating thickness of no less than 65 micrometers to provide a certain degree of corrosion resistance.
The system is equipped with a one-to-one independent control unit, which can monitor the operating status of each support column in real time and indicate the fault location when an anomaly occurs, facilitating rapid troubleshooting. The intelligent tracking module integrates terrain data and real-time weather information (such as irradiance, cloud cover, etc.) to dynamically adjust the tracking angle to cope with changes in on-site lighting. The entire design underwent wind tunnel testing, and the structural scheme was optimized for different wind load conditions.
Product Components
Advantage
▶ Terrain Adaptability
Adaptable to continuous undulating and irregular terrain, meeting the design requirements of a 15% north-south slope, reducing site leveling work.
▶ Improved Stability
Upgraded from single-point drive to multi-point drive, helping to improve the system's torsional resistance and support critical wind speed.
▶ Module Compatibility
Compatible with both 182mm and 210mm silicon wafer modules, reducing module selection limitations.
▶ Good Accessibility
Independent tracking design for each row, with no mutual obstruction between rows, facilitating access for construction vehicles and maintenance personnel.
▶ Safety and Reliability
One-to-one independent control, the system can monitor the operating status of each row of supports in real time, promptly identifying fault points and helping to reduce power generation loss.
▶ Intelligent Tracking
Optimizes the tracking angle based on different terrains and real-time weather information (irradiance, temperature, wind speed, etc.), helping to improve power generation under certain conditions.
▶ Design Rationality
Verified through wind tunnel testing, the structure has been optimized for different wind pressure areas, improving the overall stability of the system.
Tracker Structure
| Tracking Technology | Horizontal Single Axis Tracker |
| System Voltage | 1000V/1500V |
| Tracking Range | ±45%/±60° |
| Working Wind Speed | 18 m/s (Customizable) |
| Max. Wind Speed | 45 m/s ASCE 7-10 (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/Slew Drive |
| 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
▪ Low hills and gentle slopes
▪ Wave-shaped undulating mountains
▪ Areas with well-developed gullies/ravines
▪ Terraced terraces
Important Notes:
▪ Before installation, a detailed measurement of the site topography should be conducted to confirm that the slope variation is within the system design range (≤15% north-south).
▪ Foundation construction requires selecting an appropriate foundation type (PHC, cast-in-place piles, or steel piles) based on the geological report, and ensuring that pile position deviations meet installation requirements.
▪ When the operating wind speed exceeds 18 m/s, it is recommended that the control system rotate the support to a protective angle (e.g., horizontal or downwind position) to reduce the impact of wind load.
▪ The maximum wind resistance of 45 m/s is a design value based on the ASCE 7-10 standard. Actual use should be assessed for a safety margin based on local historical meteorological data.
▪ A maximum of 120 components per support column is a reference upper limit; the actual number needs to be determined after verification based on site length, component weight, and wind load.
▪ The intelligent tracking algorithm relies on real-time weather data sources (e.g., irradiance meters, weather stations). The system should have a degraded operation mode (e.g., based on astronomical algorithms) in case of data interruption.
▪ Regularly inspect the drive mechanism, fasteners, and coating surfaces; promptly maintain any abnormalities.
▪ For zinc-aluminum-magnesium coated steel, its long-term corrosion resistance still needs to be evaluated in specific high humidity or high chloride ion environments, and additional protective measures may be necessary.
Summary
This horizontal single-axis tracking support system is a product designed for ground-mounted power plants. Its core features include multi-point drive, adaptability to 15% north-south slopes, compatibility with 182/210 modules, and independent column control and real-time monitoring. Through wind tunnel testing and targeted structural design, the system demonstrates a certain degree of stability under various terrains and wind loads. The intelligent tracking function can assist in optimizing the tracking angle by incorporating real-time weather information, potentially improving power generation efficiency. Overall, this product is suitable for medium to large-scale photovoltaic projects with complex terrain and high requirements for ease of operation and maintenance and safety. However, its application requires customized design and verification based on actual wind speed, geological conditions, and module configuration.
Solar First Project Reference
Related Knowledge Points
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