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The tilted single-axis tracking system is an intelligent tracking bracket 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.
Product Description
The system employs a tilted single-axis mechanical structure, with the rotating shaft at a certain angle to the ground (adjustable from 5° to 25°). The component array rotates along the axis to track the sun's azimuth angle. Structurally, it utilizes a grid-like space frame combining A-frame and multi-point supports to distribute the load and enhance overall rigidity. Each row of tracking supports features an independent tracking design, ensuring no obstruction and facilitating construction and subsequent maintenance. The control system uses a real-time clock, GPS positioning, and optional anemometer data, combined with a closed-loop control algorithm, to drive the rotary reducer and adjust the support angle. The system can also integrate weather information, automatically activating reverse tracking under backlight conditions to reduce shading between arrays.
Product Components
Advantage
▶ Terrain Adaptability:
The structural design adapts to diverse terrains such as undulations and slopes, with relatively low requirements for site flatness.
▶ Stability Performance:
The herringbone structure and multi-point grid support system help improve the overall rigidity of the system under wind loads.
▶ Construction and Maintenance Convenience:
The independent tracking layout ensures unobstructed spacing between rows of supports, facilitating smooth access for maintenance and construction equipment.
▶ Operational Reliability:
Each tracker is independently controlled, allowing the system to monitor its operational status in real time, facilitating timely detection and maintenance of anomalies and reducing potential power generation losses.
▶ Intelligent Tracking Strategy:
The system can intelligently adjust the tracking angle or activate a protection mode based on local real-time weather conditions (such as rain, strong winds), and reduce shadow effects through reverse tracking under backlight conditions, contributing to increased power generation.
Tracker Structure
| Tracking Technology | Tilted Single Axis Tracker |
| System Voltage | 1000V/1500V |
| Tracking Range | ±45° |
| Inclination Angle | Azimuth 5°-25° |
| Working Wind Speed | 18 m/s (Customizable) |
| Max. Wind Speed | 40 m/s (Customizable) |
| Modules per Tracker | ≤20 Modules (Customizable) |
| Principal Materials | Hot-Dip Galvanized Q235B/Q355B, Zn-Al-Mg Coated Steel |
| Mean Coating Thickness | ≥65μm |
| Drive System | Slewing 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
▪ Photovoltaic power stations in uneven terrain such as mountains, hills, and gullies
▪ Projects involving agricultural-solar hybridization and forestry-solar hybridization that require coordination between support frame spacing and sunlight exposure
▪ Sites with high land utilization requirements and need to minimize the impact of shading between support frames
▪ Large-scale ground-mounted power stations where construction time and ease of operation and maintenance are important considerations
▪ Areas with climatic conditions including strong winds or requiring backlight management
Important Notes:
▪ Before installation, a detailed site survey should be conducted to confirm the compatibility of the foundation type and support inclination angle.
▪ The system operates at a wind speed of 18 m/s; exceeding this range will trigger a protection mode. The wind resistance limit is 35 m/s; prolonged exposure to environments exceeding the design wind speed is prohibited.
▪ The system consumes approximately 0.3 kW·h/day. For off-grid or low-light areas, the feasibility of the power supply scheme (string power or self-powered) needs to be assessed.
▪ Regularly inspect the rotary reducer and communication module to prevent tracking failure due to insufficient lubrication or signal interruption.
▪ After strong winds, sandstorms, or snow, it is recommended to perform functional checks on the support reset function and sensors.
▪ Foundation construction must meet the design bearing capacity requirements to prevent uneven settlement that could lead to structural tilting.
Summary
This oblique single-axis tracking system offers a solution for photovoltaic power plants that balances terrain adaptability with tracking gain. Its independent tracking layout and grid structure help reduce construction difficulty on complex sites, while intelligent angle management is achieved through closed-loop time control, GPS, and optional weather information. System parameters offer a degree of customization flexibility, allowing adjustments based on project wind speed, number of modules, and foundation type. For photovoltaic projects seeking to improve power generation efficiency and address uneven terrain, this product provides an evaluable technical option.
Solar First Project Reference
Related Knowledge Points
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The tilted single-axis tracking system is an intelligent tracking bracket 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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