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  • TRINAMIC reveals progress on AutoR Heliostat Program

    In July 2014 TRINAMIC first announced its cooperation with the German Aerospace Agency (DLR) Institute for Solar Research and the Technische Universität Hamburg-Harburg in the development of a low-cost, lightweight and highly efficient Autonomous Rim, or AutoR heliostat project. Heliostats are large mirror arrays that reflect sunlight onto a common point, generating heat that drives an energy-producing turbine. The heliostat field is comprised of individual mirrors that move on two axes to track the sun’s movement throughout the day and throughout the year. [A detailed description of the project can be found here: A holistic approach for low cost heliostat fields.]

     

    Today TRINAMIC is pleased to provide an update on the progress of this green energy initiative. The electro-mechanical design for the heliostat mirror movement control has been completed. This design includes a TRINAMIC motion controller, stepper pre-driver and motor coil MOSFETs for both axes: azimuth and elevation. The design also incorporates a separate TRINAMIC motion controller IC and stepper motor for the mirror locking mechanism, which prevents dangerous mirror movement in windy conditions.

     

    TRINAMIC also implemented the sun tracking algorithms employed by each autonomous heliostat mirror, as well as the battery management firmware, which uses a small photovoltaic to power the motors that drive the heliostat mirrors that, in turn, produce energy through the primary turbine.

    The AutoR Heliostat Drive and Control System

    The AutoR Heliostat Drive and Control System

    Field tests thus summer have confirmed operation of the mirror drives and locks, communication between mirrors and the central control unit, operation of the autonomous battery power sources, and accurate on-target tracking of solar movement.

     

    Economically successful heliostat implementations will require thousands to hundreds of thousands of individual mirrors, so efforts to reduce cost and increase efficiency for each heliostat will scale significantly to influence the total cost of a heliostat implementation.

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    Related

    November 18, 2015 / Jonas P. Proeger / 0

    Categories: Products, Projects, Research

    Tags: heliostat, research, solar

    TMCL: Usage of coolStep TMCL: Use of X-Register

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