Optimal operation of hybrid processes.
Event details
| Date | 02.10.2009 |
| Hour | 10:15 |
| Speaker | Prof. C. de Prada Moraga, Dpt. of Systems Engineering and Automatic Control (University of Valladolid). |
| Location |
MEC2405
|
| Category | Conferences - Seminars |
Processes involving continuous and discrete elements or variable structure are known as
hybrid systems, and the associated optimization problems are denoting as mixed integer
dynamic optimization (MIDO). The talk provides an overview of some methods and tools
available for dealing with MIDO problems using the so-called sequential approach, where
the optimization algorithms are combined with a dynamic simulator in order to compute cost
functions and constraints. A parameterization is proposed that allows converting the MIDO
problem into a NLP one, saving computational time. The talk also examines the problems
associated with the evaluation of the gradients when discontinuities take place in the inputs
or the model due to its hybrid character. Some real life examples are provided to illustrate
the method: A crystallization section of a sugar factory, the optimal start-up of an
evaporation station and the optimal operation of a desalination plant.
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Practical information
- General public
- Free