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Wireless heliostat and control system for large self-powered heliostat fields

Kubisch, Stephan and Randt, Michael and Buck, Reiner and Pfahl, Andreas and Unterschütz, Stefan (2011) Wireless heliostat and control system for large self-powered heliostat fields. In: Proceedings SolarPACES 2011 Granada. SolarPACES conference 2011, 20.-23. Sept. 2011, Granada, Spanien.

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The HELIOMESH project pursues the goal to evaluate and validate the feasibility of a wireless mesh network as control technology in a field of self-powered heliostats, thus eliminating the need for cabling. To enhance precision of control, an auto-calibration method was implemented. The team chose a combination of a practical approach combined with simulations to ensure scalability for large heliostats field to be build in the future: About 100 small communication devices, so called HelioNodes, are deployed in the DLR Solar Tower Demonstration Plant heliostat field, controlled by a base station located in the tower. The deployment validates the feasibility and the industrial capability of the wireless mesh control system. In simulations, the good performance of the wireless communication is shown for huge fields. Additionally, the auto-calibration technology was optimized and successfully tested using self-developed, self-powered 8m² heliostats. These heliostats were tested and optimized, with a focus on power management and drive efficiency. Results prove that stepper motors are a good choice in case state of the art electronics are used for control.

Document Type:Conference or Workshop Item (Speech)
Title:Wireless heliostat and control system for large self-powered heliostat fields
AuthorsInstitution or Email of Authors
Kubisch, Stephankubisch@trinamic.com
Randt, Michaelrandt@trinamic.com
Buck, ReinerSF-PN ST
Pfahl, AndreasSF-PN ST
Unterschütz, Stefanstefan.unterschuetz@googlemail.com
Date:September 2011
Journal or Publication Title:Proceedings SolarPACES 2011 Granada
Refereed publication:Yes
In ISI Web of Science:No
Keywords:heliostat, autonomous, wireless communication, mesh control
Event Title:SolarPACES conference 2011
Event Location:Granada, Spanien
Event Type:international Conference
Event Dates:20.-23. Sept. 2011
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solare Hochtemperatursysteme (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research
Deposited By: Andreas Pfahl
Deposited On:16 Dec 2011 16:57
Last Modified:08 May 2014 23:28

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