Julian J. Krauth, Christoph Happich, Niels Algner, Rafal Broda, Andreas Kämpgen, Alexander Schnerring, Steffen Ulmer, Marc Röger
{"title":"HelioPoint – A Fast Airborne Calibration Method for Heliostat Fields","authors":"Julian J. Krauth, Christoph Happich, Niels Algner, Rafal Broda, Andreas Kämpgen, Alexander Schnerring, Steffen Ulmer, Marc Röger","doi":"10.1115/1.4065868","DOIUrl":null,"url":null,"abstract":"\n The initial pointing calibration of a newly built heliostat field can take up to several years. The state-of-the-art method typically used is accurate but slow. A faster method could reduce the commissioning time and therefore increase the viability of a solar tower plant significantly. In this work, we present HelioPoint, a fast airborne heliostat calibration technique, and demonstrate its accuracy to be below 0.3 mrad. The measurement is performed using an LED and a camera fitted to a drone. The only infrastructure required are the roughly pre-aligned heliostats themselves. The method is independent of the sun position and can be performed at any time for arbitrary calibration points.","PeriodicalId":502733,"journal":{"name":"Journal of Solar Energy Engineering","volume":"8 5","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solar Energy Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1115/1.4065868","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The initial pointing calibration of a newly built heliostat field can take up to several years. The state-of-the-art method typically used is accurate but slow. A faster method could reduce the commissioning time and therefore increase the viability of a solar tower plant significantly. In this work, we present HelioPoint, a fast airborne heliostat calibration technique, and demonstrate its accuracy to be below 0.3 mrad. The measurement is performed using an LED and a camera fitted to a drone. The only infrastructure required are the roughly pre-aligned heliostats themselves. The method is independent of the sun position and can be performed at any time for arbitrary calibration points.