Heliostat kinematic system calibration using uncalibrated cameras

Burisch, Michael; Gómez, Luis; Olasolo, David; Villasante, Cristobal

doi:10.1063/1.4984350

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…An alternative to previously mentioned calibration methods is to use sensors mounted on the heliostat in order to determine its orientation. This method can be used for open‐loop control calibration or closed‐loop control feedback …”

Section: Technologymentioning

confidence: 99%

A concise overview of heliostat fields-solar thermal collectors: Current state of art and future perspective

Gadalla

Saghafifar

2018

Int J Energy Res

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Summary Heliostat field or solar tower collector is one of the most promising concentrated solar power technologies available in the market. Due to its high operating temperature, heliostat field collector can be implemented in a wide range of applications from solar power generation to industrial commodity production. There are several currently operating, under construction, and planned heliostat fields around the world. In this paper, a brief overview of the current state of the art, applications, assessment methods, future perspective, and methods of improvement are discussed.

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Section: Technologymentioning

confidence: 99%

A concise overview of heliostat fields-solar thermal collectors: Current state of art and future perspective

Gadalla

Saghafifar

2018

Int J Energy Res

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“…In addition to the cameras installed on the tower or special masts in the field, one can use sensors which are mounted directly on the heliostat to measure the orientation, either for calibration (Burisch et al, 2016a) or as feedback for closed-loop control (Pfahl et al, 2008), (Harper et al, 2016).…”

Section: Optical Sensormentioning

confidence: 99%

“…Furthermore, accelerometers, inclinometers, strain gauges and difference pressure gauges give information about the validity of simulations, e.g. (Pfahl et al, 2011a), (Ho et al, 2012), (Burisch et al, 2016a). DLR plans to study the deformation due to wind by using a stereophotogrammetry system.…”

Section: Concentrator Shape Deviationmentioning

confidence: 99%

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Progress in heliostat development

Pfahl

Coventry

Röger³

et al. 2017

Solar Energy

141

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Strong efforts are being made to drive heliostat cost down. These efforts are summarised to give an update on heliostat technology comprising: determination of wind loads, heliostat dimensioning, solutions for the different sub-functions of a heliostat, a review of commercially available and prototype heliostat designs, canting, manufacturing, qualification, heliostat field layout, and mirror cleaning. There is evidence that commercial heliostat costs have dropped significantly in the past few years, with commercial suppliers of heliostat technologies now claiming heliostat field costs around 100 USD/m 2. With new approaches even target cost of 75$/m² seem to be realistic.

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