Single-axis tracking photovoltaic support structure

Single-axis tracking photovoltaic support structure

The flat single-axis tracking photovoltaic support structure is a mainstream horizontal single-axis photovoltaic installation system, widely used in large-scale public solar power stations and commercial photovoltaic projects. Different from inclined single-axis supports and dual-axis trackers, this structure adopts a horizontal rotation axis in the north-south direction, enabling east-west solar tracking without the need for vertical height adjustment. It achieves a balance between energy yield, mechanical structure simplicity, and project cost, becoming the most cost-effective tracking solution for large flat terrains.

Using a standard horizontal torque tube structure, this flat single-axis tracking photovoltaic support structure has a low-profile row layout, suitable for flat terrain and sites with small height differences. The entire component rotates around a fixed north-south central axis, with a conventional tracking angle range of ±45° to follow the daily east-to-west trajectory of the sun. The system is equipped with industrial-grade backtracking algorithms, which can actively adjust the panel angles to eliminate inter-group shadows. This is a core design optimized for dense photovoltaic array layouts.

In terms of power generation performance, the energy output of the straight single-axis tracking photovoltaic support is 20% to 30% higher than that of traditional fixed inclination supports. Unlike dual-axis trackers that simultaneously adjust the azimuth and elevation angles, this single-axis design focuses on horizontal azimuth tracking, fully conforming to the solar movement patterns in low and mid-latitudes. It avoids redundant mechanical adjustments, ensuring high power output while reducing the system's operating power consumption.

This single-axis tracking photovoltaic support structure has been mechanically optimized for outdoor environments. The main support and torque tube are made of high-strength Al-Zn-Mg alloy or hot-dip galvanized steel. The integrated rotating drive unit has a fully sealed protection design, which can effectively resist sand, rain, and salt and alkali corrosion, ensuring long-term outdoor operation stability and reliability. The structural design complies with local wind and snow load standards and is equipped with a wind shielding mode, locking the photovoltaic panels horizontally in strong winds to reduce wind pressure and prevent structural damage.

This tracking system has outstanding structural and operational advantages. Its modular pre-assembled components can reduce on-site installation time, and the centralized drive mode reduces the number of motors and control units required for the entire photovoltaic array. It is compatible with all mainstream single-crystal and dual-sided solar panels and supports flexible row spacing configurations to adapt to different land layouts. Compared with complex dual-axis tracking systems, its simple transmission structure significantly reduces the daily maintenance workload.

With professional tracking logic, reliable mechanical performance, and low life cycle costs, the flat single-axis tracking photovoltaic support is a mature and field-tested solution. It helps solar project owners maximize land utilization efficiency and energy yield, and is the preferred solution for modern ground photovoltaic power stations worldwide.