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Modeling and Control of Co-generation Power Plants: A Hybrid System Approach

Author(s):

G. Ferrari-Trecate, E. Gallestey, P. Letizia, M. Spedicato, M. Morari, M. Antoine
Conference/Journal:

International Workshop on Hybrid Systems: Computation and Control, Stanford, California, USA, no. 5, pp. 208-224, 25 - 27 March 2002, Tomlin C. G. and Greenstreet M. R. (eds.), Lecture Notes in Computer Science no. 2289.
Abstract:

In this paper the optimization of a combined cycle power plant is accomplished by exploiting hybrid systems, i.e. systems evolving according to continuous dynamics, discrete dynamics, and logic rules. The possibility of turning on/off the gas and steam turbine, the operating constraints (minimum up and down times) and the different types of start up of the turbines characterize the hybrid behavior of a combined cycle power plant. In order to model both the continuous/discrete dynamics and the switching between different operating conditions we use the framework of Mixed Logic Dynamical systems. Next, we recast the economic optimization problem as a Model Predictive Control (MPC) problem, that allows us to optimize the plant operations by taking into account the time variability of both prices and electricity/steam demands. Because of the presence of integer variables, the MPC scheme is formulated as a mixed integer linear program that can be solved in an efficient way by using commercial solvers.

Further Information
Year:

2002
Type of Publication:

(01)Article
Supervisor:



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% Autogenerated BibTeX entry
@InProceedings { FerEtal:2002:IFA_47,
    author={G. Ferrari-Trecate and E. Gallestey and P. Letizia and M. Spedicato and M. Morari and M. Antoine},
    title={{Modeling and Control of Co-generation Power Plants: A
	  Hybrid System Approach}},
    booktitle={International Workshop on Hybrid Systems: Computation and
	  Control},
    pages={208--224},
    year={2002},
    address={Stanford, California, USA},
    month=mar,
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=47}
}
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