Optimized Utility Scale Single Axis Tracker Controller
Working principle:
The torque tube of the single axis tracker controller is arranged
in the north-south direction. And then make the photovoltaic
modules rotate according to the variation of the sun azimuth,
reduce the angle between the sun's direct light and the
photovoltaic modules, which can effectively improve the yield of
single axis tracking system in most area up to 15% to 25%.
Single axis solar tracker includes, mounting bracket for solar
panel, horizontal shaft, rotation drive mechanism, wind speed
detection device and tracking controller. Single axis solar tracker
has one degree of freedom that acts as an axis of rotation.
Technical Parameters of Optimized Utility Scale Single Axis Tracker
Controllerr
| Technical parameters |
| Tracking Range | 士 60° |
| Driving System | Slew drive, 28VDC motor |
| Modules per Tracker | Max.90 modules per tracker |
| System Voltage | 1000 V or 1500 V |
| Ground Coverage Ratio | ≥ 25% |
| Foundation Options | All foundation types |
| Terrain Adaption | Up to 20% N-S slope |
| Structure Material | Hot dip galvanized steel |
| Power Consumption | 0.2-0.5kWh/day |
| Power Supply Mode | Powered by PV strings, back-up lithium battery |
| Standard Design Wind Speed | 18m/s |
| Module Supported | All commercially available modules |
| Operation Temperature | -40℃ - 70℃ |
| Control Algorithm | Astronomical algorithms + Tilt sensor close loop |
| Tracking Accuracy | ≤ 1° |
Advantage:
1. Horizontal single-axis, single-row with independent drive
permits full accessbetween rows and enables flexible, high density
site layouts.
2. Field proven, robust, and reliable tracking systems.
3. Maintenance-free patented polymer spherical bearings. Field
tested under harsh environmental conditions to validate their high
reliability.
4. Wireless Zigbee communication system between independent rows.
5. Industrial-grade control system based on a micro processor
features an advanced wind control software with stow positions for
tracker safety.
6. Equipped with GPS to Guarantee the Accuracy of Time
High weather resistance contributes to safe and stable operation
between -40℃-70℃. The excellent electromagnetic compatibility
design makes the system stable and reliable.
7. Remote Communication, Group Control for Multi-Equipment
Automatically identify the failure, with automatic self-protection
and alarm; Quadruple over-current protection ensures the safety of
the whole system
8. Customized System Configuration
It can be designed according to customer’s specific requirement.
Functions:
1. High reliability: It can handle freely in the area with serious
electromagnetic interference. Its excellent electromagnetic
compatibility design ensures high reliability operation of the
system.
2. Intelligent wind resistance: It is automatically leveled to the
initial position at night. At the same time, the system has a wind
load protection interface and supports an external wind speed
sensor, which can control the system to enter the maximum wind
resistance state of the machine at any time.
3. Power-off memory: There is a backup battery inside the system,
which can ensure that the system power-off data is not lost, and
automatically enters the running state after power-on.
4. Strong weather resistance: The system uses industrial grade
chips and aerospace-grade clock sources to ensure safe and stable
operation of the equipment in the range of -40 to +70 degrees
without cumulative error.
