A backyard installation of passive single–axis trackers in winter midday position, tilted toward the south. The tall poles allow walk-under and use of the ground space underneath the panels for plantings that thrive on protection from the intense midday summer sun at this location A solar tracker is a device that orients a payload toward the sun. Payloads can be photovoltaic panels, reflectors, lenses or other optical devices. In flat-panel photovoltaic (PV) applications, trackers are used to minimize the angle of incidence between the incoming sunlight and a photovoltaic panel. In concentrated photovoltaic (CPV) and concentrated solar thermal (CSP) applications, trackers are used to enable the optical components in the CPV and CSP systems. Basic concept The effective collection area of a flat-panel solar collector varies with the cosine of the misalignment of the panel with the Sun. The sun also moves through 46 degrees north and south during a year. Types of solar collector
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Heliotrack.com - Heliostats and Solar TrackingSolar Tracking, Solar Tracking Systems, Solar Trackers | We Catch the SunSlewing driveStandard Kinematic's SE slewing drive. This slewing drive in particular can handle over 300kNm of torque. History Technology Traditional worm gear with a 4-start worm. Slewing drives function with standard worm technology, in which the worm on the horizontal shaft acts as the driver for the gear. As technology has improved, more and more slewing drives are now functioning with hourglass worm technology which functions much in the same way as a traditional worm with one big exception: a traditional worm touches just one tooth at a time while an hourglass engages up to 11 teeth at one time. This increased tooth engagement results in far greater strength, efficiency and durability. Performance characteristics Because of their multiple uses, slewing drives come in a variety of model sizes, performance ranges and mounting characteristics. Materials The specifications for drives and gears varies depending on the material the gear is composed of. Applications
PowerFilm - lightweight, thin, flexible solar panelsProject Free Power » Building a Sun TrackerSun Trackers are a great way to get maximum performance out of your solar panels. Positioning your solar panels in a fixed location will do the job, but you will be robing your self of free power and maximum efficiency! The only downfall of a solar tracker is it takes energy to move the motor to reposition the panels so they are always facing the sun. Overall an efficient Solar Trackers can produce 30-50% more amp hour making it a very worth while project. A simple solar tracker can be built using some common radio shack parts, to upgrade this project to full size, you would simply use a heavier duty motor and relays which would be dependent on the size of your panels and how much energy is needed to rotate them. Parts List: 3 x LDR 1 x 33 R Resistor 1 x 75 R Resistor 1 x 100 R Resistor 1 x 10K Resistor 1 x 20K Resistor 1 x 2N4401 Transistor 1 x TIP120 Darlington pair 1 x 9v Relay 1 x 5v Motor With the schematic laid out, you can see it is a very simple design.
Heliostats and Solar TrackingHeliostat Kits, Solar Tracker Mechanics, and Custom Control Circuits (Contact Us) Shipping charges will be based on shipping selection for the first item in your cart. $3 handling for each additional item. Downloadable PDF (Current V3.3 controllers) Applications: Single-Axis, Twin Single-Axis, and Dual-Axis solar tracking Pump control Thermostat control Servo control Applications requiring switching outputs based on voltage comparisons Specifications: Controller circuit description: The dual axis solar tracking controller features three inputs and two solid state H-bridge driver outputs. Although this controller was designed primarily for dual axis solar tracking it can also be used for control of other loads requiring DC current up to 4 amps. *** Never apply power directly to the motor terminals , this will destroy the driver transistors and incur a $75 fix it fee. Installation instructions: 1) Mount the tracking controller box in an accessible location. Tracking Delay Time Table
Sun Tracker Automated Solar PanelYour Own Automated Solar Power Station! The Sun Tracker is an automated solar panel that actually follows the Sun for increased power. Capable of rotating over a 160° east to west, the Sun Tracker will increase the power output of photovoltaic arrays by over 200% by keeping the face of the panels parallel to the sun throughout the day. The Sun Tracker is made from light weight aluminum and can be mounted in a fixed location. A Real World Sun Tracker In California, the Solar One power station at one time (it has since been converted for astronomical uses) used the Sun's heat to make steam, and drive a generator to make electricity. As the Sun moved across the sky, the mirrors would turn to keep the rays focussed on the tower, where oil was heated to 300 degrees Celsius.
Suntracer OG+ the handy solar trackerSolar motor made for 12V or 24V system. Suitable for fixed usage at homes and weekends, where medium power up to 210W and wind resistance up to 140km/h are required. All metal parts inside ensure higher destruction forces. The SunTracer OG+ solar motor kit comprises: 1. SunTracer motor 2. Positioner 3. Features - A professional motor with a positioner, a power-supply regulator and telescopic back structure for the automatic rotation of a solar cell. - A strong, heavy-duty aluminum housing, and a powerful metal motor pole. - Polarmount structure for the horizontal tracking of the sun orbit. - Motor rotation up to 100°, which means 8 hours of tracking the sun at the right angle. - Used for solar cells up to 1,3m2, or up to 200W, depend from model. - Low power consumption of the motor. - Discharge protection via a solar cell. - Easy sun clock sinhronization. - A back-up battery for the internal time and date. - Suitable for use in tropic and desert conditions. - Made in Europe.
Encoders for Advanced Motion Control TechnologyAbsolute Rotary Encoders Robust construction for use in extreme conditions, single turn versions provide up to 13 bit resolution, multi-turn up to 25 bit. A Choice of hollow or through shafts, codes, interface options and Analog, Serial and Parallel connectivity. Absolute single turn hollow shaft rotary encoders Change of counting direction via input signal Free choice of active angle 10° up to 360°.