Post & Girder: HDG Rails & Clamps: AL6005-T5 Fasteners: HDG or SUS304

CE certification.

D2P120 design wind speed is up to 50m/s, MRI 100Y D1P120 design wind speed is up to 60m/s, MRI 100Y D1P design wind speed is up to 64m/s, MRI 100Y

One tracker has 2~4 or more motors up to tracker length or modules qty. One tracker will Configure 1 host-controller for middle drive motor and 1~3 sub-controller for the other drive motors.

The ezTracker NCU synchronizes the current longitude, latitude, and real-time time to the ezTracker TCU at regular intervals. The TCU uses the synchronized GPS data to calculate the sun’s position (azimuth and altitude) in real-time. The sun’s azimuth and altitude are then converted into the target angles needed by the tracking support. The TCU contains an inclinometer, and when the deviation between the target angle and the inclinometer exceeds 2 degree, the controller drives a DC motor. A closed-loop control is formed with feedback signals from the inclinometer to adjust the tracking support to the calculated target angle. When the sun's altitude is greater than 90° minus the maximum tracking angle (60°), the system enters standard tracking mode. When the sun’s altitude is less than 90° minus the maximum tracking angle (60°), the tracking support enters the backtracking mode. Closed loop control: the control signal emitted by the TCU and the feedback signal from the inclinometer on torque tube form a closed-loop feedback control mechanism. Diffuse reflection tracking: When the irradiator detects cloudy conditions, the tracker will automatically stow at zero degree position to receive the maximum air diffuse, which can increase power generation compared to normal tracking.

Inverter communication is independent of the ezTracker system. Inverter covert string power DC electricity to AC electricity through cables. And inverter can be seen as TCU in the solar plant, and the inverters are communicated via wireless signal.

We currently have options for sensors such as wind speed and direction indicator, ultrasonic snow depth sensors, and radiation sensors.

ezTracker D1P, max 97m table length with single slew drive and dampers. Stow at 30 degree, panel nose down. ezTracker D1P120, max 130m table length with 4 slew drive. Stow at 5 degree. ezTracker D2P120, max 67m table length with 3 slew drive. Stow at 5 degree. All type tracker stow at max position under snow stow. And wind stow is the highest priority than snow.

You can find the explanation in the picture below. 

Slew support bracket on the top of drive post and post connector on the top of standard post are have slot installation hole for rotation tolerance. 

For flat terrain. Adopting a time based shadow backtracking algorithm. For simple gentle slopes, we can modify the shadow backtracking algorithm based on the height difference between adjacent rows. But for Complex undulating terrain we don’t have AI backtracking algorithm.