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Modeling and Control of cogeneration power plants: a hybrid system approach.

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Abstract:
The process of liberalization of the energy market lead the power producers to the research of the most efficient running conditions for the power plants. In this work we present how the optimization of a combined cycle power plant can be tackled by exploiting hybrid systems techniques. The possibility of turning on/off the gas and steam turbine, the operating constraints (as minimum up and down times) and the different types of start up of the turbines characterize the hybrid behavior of the 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 in a Model Predictive Control (MPC) problem, that allows optimizing the plant operations by considering the variability of both prices and electricity/steam demands over a time-window in the future. Due to 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.

Type of Seminar:
Public Seminar
Speaker:
Dipl.-Ing. Spedicato Matteo and Dipl.-Ing. Letizia Paolo
ETH Zentrum Automatic Control Lab. Physikstrasse 3 8092 Zurich
Date/Time:
Apr 10, 2001   17:15
Location:

ETL K 25
Contact Person:

letizia@aut.ee.ethz.ch
No downloadable files available.
Biographical Sketch:
Matteo Spedicato was born in Pavia on the 19th of September in 1974. He ended the high school studies (scientific oriented) at Liceo Scientifico T. Taramelli of Pavia (Italy) in July 1993. He received the Laurea degree in Electrical Engineering from the University of Pavia on March, 26th 2001 . His thesis work ( ,Modeling of cogeneration power plants: a hybrid system approach,) has been carried out at the Institut fur Automatik of the Swiss Federal Institute of Technology (ETH - Zurich). // Paolo Letizia was born in Pavia on the 22th of January in 1975. He received the premium BARONI - PODERINI - MAROZZI from the secondary school "Carlo Pascal" by studying merits. He ended the high school studies (scientific oriented) at Liceo Scientifico T. Taramelli of Pavia (Italy) in July 1993. He attended the University of Pavia form which he received the Laurea degree in Electrical Engineering on March, 26th 2001. His thesis work ( ,Control of cogeneration power plants: a hybrid system approach, ) has been carried out at the Institut fur Automatik of the Swiss Federal Institut of Technology (ETH - Zurich).