Development of an Optimizing Control Concept for Fossil-Fired Boilers using a Simulation Model

J. H. Mortensen, T. Mølbak, M.B. Commisso, Tom Søndergaard Pedersen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

Abstract

An optimizing control system for improving the load following capabilities of power plant units has been developed. The system is implemented as a complement producing additive control signals to the existing boiler control system, a concept which has various practical advantages in terms of implementation and commissioning. The optimizing control system takes into account the multivariable and nonlinear characteristics of the boiler process as a gain-scheduled LQG-controller is utilized. For the purpose of facilitating the control concept development a dynamic simulation model of the boiler process and the existing control system has been developed and validated. The optimizing control system has been developed and tested by extensive use of the simulation model. Simulation results indicate that a reduction of steam temperature deviations of about 75% can be obtained. The advantages of using a simulation model when designing a new control concept are discussed.
Original languageDanish
Title of host publicationProceedings of the SCS simulation Conference 1997, Atlanta, USA
Publication date1997
Publication statusPublished - 1997
EventDevelopment of an Optimizing Control Concept for Fossil-Fired Boilers using a Simulation Model -
Duration: 19 May 2010 → …

Conference

ConferenceDevelopment of an Optimizing Control Concept for Fossil-Fired Boilers using a Simulation Model
Period19/05/2010 → …

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