Constrained control of a once-through boiler with recirculation

K Trangbæk

Research output: Contribution to journalConference article in JournalResearchpeer-review

1 Citation (Scopus)
757 Downloads (Pure)

Abstract

There is an increasing need to operate power plants at low load for longer periods of time. When a once-through boiler operates at a sufficiently low load, recirculation is introduced, significantly altering the control structure. This paper illustrates the possibilities for using constrained control to obtain optimal load gradients in the recirculation mode. A model predictive controller is designed for a simulation model with good results. It is also shown how the feed water flow can be used as an extra control signal.
Original languageEnglish
Book seriesElsevier IFAC Publications / IFAC Proceedings series
Issue number1
Number of pages6
ISSN1474-6670
Publication statusPublished - 2008
Event17th IFAC World Congress - Seoul, Korea, Republic of
Duration: 6 Jul 200811 Jul 2008
Conference number: 17

Conference

Conference17th IFAC World Congress
Number17
CountryKorea, Republic of
CitySeoul
Period06/07/200811/07/2008

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Boilers
Power plants
Controllers
Water

Cite this

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title = "Constrained control of a once-through boiler with recirculation",
abstract = "There is an increasing need to operate power plants at low load for longer periods of time. When a once-through boiler operates at a sufficiently low load, recirculation is introduced, significantly altering the control structure. This paper illustrates the possibilities for using constrained control to obtain optimal load gradients in the recirculation mode. A model predictive controller is designed for a simulation model with good results. It is also shown how the feed water flow can be used as an extra control signal.",
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Constrained control of a once-through boiler with recirculation. / Trangbæk, K.

In: Elsevier IFAC Publications / IFAC Proceedings series, No. 1, 2008.

Research output: Contribution to journalConference article in JournalResearchpeer-review

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AB - There is an increasing need to operate power plants at low load for longer periods of time. When a once-through boiler operates at a sufficiently low load, recirculation is introduced, significantly altering the control structure. This paper illustrates the possibilities for using constrained control to obtain optimal load gradients in the recirculation mode. A model predictive controller is designed for a simulation model with good results. It is also shown how the feed water flow can be used as an extra control signal.

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