Horizontal Solar PV Tracker
Working principle:
horizontal solar PV tracker is a device that orients a payload
toward the sun. It can track sun in east-west direction. It is
suitable for lower latitudes with high sun height angle. Its power
generation efficiency is 25% higher than fixed sun panel tracking.
The solar tracking system can be installed at ground level or roof.
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. The
axis of rotation of single axis trackers is typically aligned along
a true North meridian. It is possible to align them in any cardinal
direction with advanced tracking algorithm.
Solar tracker is a system that tests and optimizes the tracking
accuracy of single-axis solar trackers. It accurately monitors
second by second the inclination of PV modules, analytically
calculates the deviation from the optimal tilt, and generates the
tilt-correction parameters delivering optimized alignment and
maximized energy production.
Functions:
1. Single row independent drive unit, no connection between row and
row, to ensure convenient traffic between square array;
2. Slew drive design, with high transfer efficiency and good
environmental adaptability, the drive unit can be maintained free
for 25 years;
3. Adopt the form of self-power supply, without external power
supply;
4. Independently developed MCU microcomputer control system;
5. Intelligent battery management system (BMS) and automatic alarm
functions can ensure the system's long-term reliable operation.
Technical Parameters of Horizontal Solar PV Tracker
| 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% |
| 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° |
| String-Powered | Yes |
| Backtracking | Yes |
| Communication Options | LoRa wireless /RS 485 cable |
| Night Position | Yes |
Advantage:
1: Less electric control and driving unit, lower failure rate;
2: Strong adaptability, simple installation, convenient operation
and maintenance;
3: Tracker could adjusts solar panels into horizontal in strong
wind condition.
4: More reasonable wind resistance design;
Through the wind tunnel test, a more reasonable wind resistance
mechanism can be obtained, which can more effectively guarantee the
25-year life of the power station.
5. Minimum number of drives for every MWp installed.
6. Compatible with different foundation solutions: ramming,
micropiles, concrete pads, predrilling, screw pile.
7. Compatible with all PV modules (framed, glass-glass, thin-fi lm,
bifacial)
8. Preassembled joints and components.
9. Minimum installation time, fast & simple.
