11h00–12h00 — L2S, bâtiment IBM
Title. Strongly Stabilizing Controller Design for Distributed Parameter Systems
Speaker. Hitay Özbay (Bilkent University, Turkey)
Abstract. Strong stabilization of an unstable plant is defined as finding a stabilizing feedback controller which is itself stable. This problem has attracted interest since the 1970s, and various design techniques have been proposed. On the other hand, many variations of the problem with additional conditions such as robust stability, H2, and/or H∞ optimality, are known to be difficult and they are typically solved under certain sufficient conditions. In this presentation, we will give a brief review of existing strong stabilization methods for LTI finite-dimensional plants and illustrate their extensions to distributed parameter systems. We also present a new family of controllers for unstable time delay systems and formulate an open problem on how strongly stabilizing controllers can be obtained from this parameterization.
Bio. Hitay Özbay is a Professor of Electrical and Electronics Engineering at Bilkent University, Ankara Turkey. He received the B.Sc., M.Eng. and PhD degrees from Middle East Technical University (1985), McGill University (1987), and University of Minnesota (1989), respectively. His prior academic affiliations include University of Rhode Island (1989–1990), and The Ohio State University (1991–2006) where he was a Professor of Electrical and Computer Engineering prior to joining Bilkent University. He also held a visiting position at INRIA, France (2009–2010). Professor Özbay was a member of the Board of Governors of the IEEE Control Systems Society (2017–2019) and a general assembly member of the European Control Association (EUCA), representing Turkey, 2013–2019. He served as Associate Editor for many journals, including IEEE Transactions on Automatic Control, SIAM Journal on Control and Optimization, and Automatica. He also served as Vice-Chair of IFAC Technical Committees on Networked Control Systems (2005–2011) and on Linear Control Systems (2017–2023). He is a Fellow of IEEE.