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http://dx.doi.org/10.18419/opus-8419
Autor(en): | Schlipf, David Fleming, Paul Raach, Steffen Scholbrock, Andrew Haizmann, Florian Krishnamurthy, Raghu Boquet, Matthieu Cheng, Po Wen |
Titel: | An adaptive data processing technique for lidar-assisted control to bridge the gap between lidar systems and wind turbines |
Erscheinungsdatum: | 2015 |
Dokumentart: | Konferenzbeitrag |
Erschienen in: | European Wind Energy Association Annual Event (EWEA), Paris, France, November 2015 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-103950 http://elib.uni-stuttgart.de/handle/11682/8436 http://dx.doi.org/10.18419/opus-8419 |
Zusammenfassung: | This paper presents first steps toward an adaptive lidar data processing technique crucial for lidar-assisted control in wind turbines. The prediction time and the quality of the wind preview from lidar measurements depend on several factors and are not constant. If the data processing is not continually adjusted, the benefit of lidar-assisted control cannot be fully exploited or can even result in harmful control action. An online analysis of the lidar and turbine data is necessary to continually reassess the prediction time and lidar data quality. In this work, a structured process to develop an analysis tool for the prediction time and a new hardware setup for lidar-assisted control are presented. The tool consists of an online estimation of the rotor effective wind speed from lidar and turbine data and the implementation of an online cross-correlation to determine the time shift between both signals. Further, we present initial results from an ongoing campaign in which this system was employed for providing lidar preview for feedforward pitch control. |
Enthalten in den Sammlungen: | 15 Fakultätsübergreifend / Sonstige Einrichtung |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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Schlipf2015b_An_Adaptive_Data_Processing_Technique_for_Lidar_Assisted_Control_to_Bridge_the_Gap_between_Lidar_Systems_and_Wind_Turbines.pdf | 287,74 kB | Adobe PDF | Öffnen/Anzeigen |
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