Optimization of Boiler Control to Improve the Load-following Capability of Power-plant Units

J. H. Mortensen, T. Mølbak, Palle Andersen, Tom Søndergaard Pedersen

Publikation: Bidrag til tidsskriftTidsskriftartikelFormidling

33 Citationer (Scopus)

Resumé

The capability to perform fast load changes has been an important issue in the power market, and will become increasingly more so due to the incresing commercialisation of the European power market. An optimizing control system for improving the load-following capability of power-plant units has therefore been developed. The system is implemented as a complement, producing control signals to be added to those of the existing boiler control system, a concept which has various practical advantages in terms of implementation and commissioning. The optimizing control system takes account of the multivariable and load-de*pendent nonlinear characteristics of the boiler process, as a scheduled LQG controller with feedforward action is utilized. The LQG controller improves the control of critical pro*cess variables, making it possible to increase the load-following capability of a specific plant. Field tests on a 265 MW coal-fired power-plant unit reveals that the maximum allowable load gradient that can be imposed on the plant, can be increased from 4 MW/min. to 8 MW/min.
OriginalsprogDansk
TidsskriftControl Engineering Practice
Sider (fra-til)1531-1540
ISSN0967-0661
StatusUdgivet - 1998

Citer dette

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Optimization of Boiler Control to Improve the Load-following Capability of Power-plant Units. / Mortensen, J. H.; Mølbak, T.; Andersen, Palle; Pedersen, Tom Søndergaard.

I: Control Engineering Practice, 1998, s. 1531-1540.

Publikation: Bidrag til tidsskriftTidsskriftartikelFormidling

TY - JOUR

T1 - Optimization of Boiler Control to Improve the Load-following Capability of Power-plant Units

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AU - Mølbak, T.

AU - Andersen, Palle

AU - Pedersen, Tom Søndergaard

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