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This product is a horizontal single-axis tracking support system, primarily used in photovoltaic power plants to support and drive the module array to follow changes in the sun's azimuth angle. 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.
Product Description
Unlike conventional fixed supports or linked tracking supports, this system is designed based on the principle of "independent operation of each tracker," with no mechanical linkages between the trackers, facilitating the layout of construction and maintenance access routes. The system control unit can adjust the tilt angle according to terrain undulations and real-time meteorological data, aiming to improve irradiance reception efficiency under different weather conditions. Simultaneously, the 2P (dual-component vertical arrangement) modular layout helps optimize pile spacing, thereby affecting the overall support cost structure.
Product Components
Advantage
▶ Terrain Adaptability
Applicable to uneven sites with a north-south slope difference of no more than 15%, reducing site leveling work.
▶ Pile Quantity
The 2P module design helps reduce the number of piles per megawatt, with a reference value of approximately 140 piles/MW, thus controlling foundation costs.
▶ Module Compatibility
Supports modules with 182mm and 210mm cell sizes, and the system voltage is adaptable to 1000V or 1500V.
▶ Maintenance Ease
Independent trackers are free of linkages, providing access for maintenance and cleaning.
▶ Fault Monitoring
The independent control system can report the location of faults, assisting maintenance personnel in rapid response and reducing potential power generation losses.
▶ Tracking Strategy
The tilt angle can be adjusted based on terrain and meteorological data, potentially achieving higher power output under certain weather conditions compared to a fixed angle.
▶ Structural Validation
Through proprietary structural design and wind tunnel testing, stability is expected within the specified wind speed range.
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 | 35 m/s ASCE 7-10 (Customizable) |
| Modules per Tracker | ≤60 Modules (Customizable) |
| Principal Materials | Hot-Dip Galvanized Q235B/Q355B, Zn-Al-Mg Coated Steel |
| Mean Coating Thickness | >80μm |
| Drive System | 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
▪ Large-scale ground-mounted power plants
▪ Fish-solar/agricultural complementary power generation
▪ Commercial and industrial building rooftops: Applicable to flat concrete roof power plants and industrial plant rooftops
▪ Ecological restoration scenarios: such as saline-alkali land, deserts, etc., improving the ecological environment while generating electricity.
Important Notes:
▪ Actual wind resistance is related to foundation design, geological conditions, and component arrangement. It is recommended to commission a professional organization to conduct a wind load verification at the project site.
▪ The operating wind speed is 18 m/s. When the wind speed exceeds this value, the control system should return the support to a protective angle (e.g., horizontal position) to avoid prolonged exposure to over-design loads.
▪ The tracking range of ±45° or ±60° can be selected based on the project's latitude and terrain. Large-angle tracking is not suitable for all sites.
▪ The typical design value is approximately 140 piles/MW. The actual number depends on the spacing, terrain, and load requirements.
▪ The intelligent tracking algorithm requires accurate terrain and meteorological data. It is recommended to deploy a small weather station at the project site to improve data reliability.
▪ During installation and maintenance, attention should be paid to electrical grounding and regular lubrication of the rotary drive mechanism.
Summary
This single-axis tracking support system adopts independent control and a 2P modular structure, with a tracking capability of ±45° to ±60°, compatible with 182/210mm components, and adaptable to various foundation types. It maintains good adaptability in terrains with north-south slopes not exceeding 15%, and by reducing the number of pile foundations and eliminating linkage obstacles, it positively impacts the initial investment and operational convenience of the power station. All performance data is based on wind tunnel testing and structural design verification; actual application should be evaluated in conjunction with specific project conditions.
Solar First Project Reference
Related Knowledge Points
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