Dual axis Pole solar tracker|solar tracking system|PLC+light sensor control
1) Both elevation and azimuth have slewing driver, not linear actuator for elevation
2) The max power output of tracker can reach 20KW
3) More steel is used, the weight of normal tracker (20panels) is about 900kgs or below, ours can reach 1300kgs, it will make the whole tracker more wind resistant and stronger, wind loading is 27m/s
4) The design is unique and simple, there are two kind of mounting: flat plate and double layer
5) Light sensor control and time control together
6) Lower noise to avoid affecting resident
Standard solar panel:
Structure material : Hot dipped galvanized steel
Max module power:20KW
Net rack area:30~70sqm
Tracking technology: programmable logic controller(PLC) astronomical program,adding light sensor controlling, tracking accuracy can reach ≤1°
Wind protection system: Wind sensor , Working wind speed: 17m/s .automactic horizontal positioning at wind speed greater than 27m/ph
Foundation: steel cage with reinforced concrete, drawing will be as reference
Tracking axis: 2 axes: azimuth and vertical
Power of motor: 90W*2
Angles of rotation:azimuth:-120 to 120 vertical:30 to 90
Power supply to motor: 380V to 480V 3 phase,50-60HZ depending on location(US, Europe ect.)
Power consumption :0.5kwh/day
Working temperature:-25C to +65C
Design lifetime : 25 years above for Mechanical part,3 years above for motor
Automation: independent PLC on each tracker with possible interconnection and remote control(optional)
Bearing and turn regulation: Motorized bearing for azimuth and vertical tracking activated by planetary gear reducer
Article from wikipedia
Tip-tilt dual axis tracker (TTDAT)
A tip-tilt dual axis tracker is so-named because the panel array is mounted on the tip of a long pole. Normally the east-west movement is driven by rotating the array around the top of the pole. On top of the rotating bearing is a T- or H-shaped mechanism that provides vertical rotation of the panels and provides the main mounting points for the array. The posts at either end of the primary axis of rotation of a tip–tilt dual axis tracker can be shared between trackers to lower installation costs.
Field layouts with tip-tilt dual axis trackers are very flexible. The simple geometry means that keeping the axes of rotation parallel to one another is all that is required for appropriately positioning the trackers with respect to one another. Normally the trackers would have to be positioned at fairly low density in order to avoid one tracker casting a shadow on others when the sun is low in the sky. Tip-tilt trackers can make up for this by tilting closer to horizontal to minimize up-sun shading and therefore maximize the total power being collected.
The axes of rotation of tip-tilt dual axis trackers are typically aligned either along a true north meridian or an east west line of latitude. It is possible to align them in any cardinal direction with advanced tracking algorithms.
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