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Control of Solar Steam Generators

[+] Author Affiliations
Peter Tanner, Pete Johnson, Alex Hoermann, Weili Cheng

AREVA Solar, Mountain View, CA

Kent Rasmussen

Controls Consulting, Inc., Bellingham, WA

Paper No. POWER2011-55175, pp. 309-316; 8 pages
doi:10.1115/POWER2011-55175
From:
  • ASME 2011 Power Conference collocated with JSME ICOPE 2011
  • ASME 2011 Power Conference, Volume 1
  • Denver, Colorado, USA, July 12–14, 2011
  • ISBN: 978-0-7918-4459-5
  • Copyright © 2011 by ASME

abstract

Direct steam generation has distinct cost advantages over alternative methods for producing superheated steam from a solar collector system. We present results from a model predictive controller for a solar steam generator that is configured as a once through to superheat process using direct steam generation. The solar collector system modeled uses a linear Fresnel reflector field with a multi-tube receiver. The model predictive controller uses step response models that are developed offline using a dynamic simulation. The model predictive controller incorporates a feedforward signal based on absorbed solar power. Performance of the controller has been demonstrated at the Kimberlina Solar Power Station near Bakersfield, California. The results show the feasibility of a controller for a solar direct steam generation system that provides stable superheated steam temperature and pressure conditions through weather events.

Copyright © 2011 by ASME
Topics: Boilers , Solar energy

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