Curso "Putting energy back in control" Curso "Putting energy back in control" 20 Enero del 2003. El Prof. Dr. Romeo Ortega, miembro de SUPELEC, Francia dictará el curso "Putting energy back in control" como parte del proyecto de cooperación internacional (ECOS/CONICYT C01E07). El profesor Romeo Ortega dictara el curso "Putting energy back in control"
Contenido del curso.
Energy is one of the fundamental concepts in science and engineering practice, where it is common to view dynamical systems as energy-transformation devices. This perspective is particularly useful in studying complex systems by decomposing them into simpler subsystems which, upon interconnection, add up their energies to determine the full system's behavior. The action of a controller may be also understood in energy terms as another dynamical system-typically implemented in a computer-interconnected with the process to modify its behavior. The control problem can then be recast as finding a dynamical system and an interconnection pattern such that the overall energy function takes the desired form. This “energy shaping” approach is the essence of passivity based control (PBC), a controller design technique that is very well-known in mechanical systems.
Our objectives in this course are three: First, to call attention to the fact that PBC does not rely on some particular structural properties of mechanical systems, but hinges on the more fundamental (and universal) property of energy balancing. Second, to identify the physical obstacles that hamper the use of “standard” PBC in applications other than mechanical systems. In particular, we will show that “standard” PBC is stymied by the presence of unbounded energy dissipation, hence it is applicable only to systems that are stabilizable with passive controllers. Third, to revisit a PBC theory that has been recently developed to overcome the dissipation obstacle as well as to make the incorporation of process prior knowledge more systematic. These two important features allow us to design energy based controllers for a wide range of physical systems. In the course we will illustrate it with power electronic, AC drives and power generating systems.
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