Closed-loop control of heliostats with detailed radiant-footprint optimization

Bernhard W. Adams

doi:10.1117/12.3028063

2 October 2024 Closed-loop control of heliostats with detailed radiant-footprint optimization

Bernhard W. Adams

Proceedings Volume PC13132, Nonimaging Optics: Efficient Design for Illumination and Concentration XIX; PC131320I (2024) https://doi.org/10.1117/12.3028063
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

Retroreflectors ('retros') in front of the receiver provide feedback from multiple locations of each heliostat's radiant footprint thereon, simultaneously for all of them. The retros and their mounts are made of quartz glass to allow placement in the 'hot zone'. To discriminate samples of light returned by multiple retros from each other and from the brightly lit receiver, the retro reflectivities are modulated at unique frequencies by spinning them. The presentation will show component and system test results.

Conference Presentation

Citation Download Citation

Bernhard W. Adams "Closed-loop control of heliostats with detailed radiant-footprint optimization", Proc. SPIE PC13132, Nonimaging Optics: Efficient Design for Illumination and Concentration XIX, PC131320I (2 October 2024); https://doi.org/10.1117/12.3028063

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