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SUMMARY:Vortrag von Prof. Stephan Trenn
DESCRIPTION:Prof. Stephan Trenn \nJohann Bernoulli Institute for Mathematics and Computer Science\nUniversity of Groningen, The Netherlands  \nTuesday 2018-01-30 16:00\n IST-Seminar-Room 2.255 - Pfaffenwaldring 9 - Campus Stuttgart-Vaihingen  \nAbstract  \nSwitched systems are a modeling framework for dynamical systems which are subject to sudden\nstructural changes. In particular, they are well suited for the analysis of fault scenarios, where\nthe occurrence of a fault is modeled as a switch from the nominal to a faulty mode of the system.\nObserving these switches and identifying the fault from the available measurements is of crucial\nimportance in many applications. A classical system property in this context is "mode\ndetectability", which is the ability to distinguish the different modes of the systems via the\ninformation obtained from the measurable external signals. However, this notion is very strong as\nit implies the ability to recover the mode also for constant switching signals (i.e. when no switch\noccurs at all) and, furthermore, for each individual mode the internal state needs to be\nobservable. Especially in the fault detection scenario (where the state observability may not be\nsatisfied in a faulty configuration), these two consequence from mode detectability indicate that a\nweaker notion may be more appropriate. Therefore, the new notion "switch observability" will be\npresented which does not require state observability for all modes and also takes into account the\neffect (e.g. a jump) a switch has on the output. Kalman-like rank conditions will be given, which\ncharacterize this new observability notion.  \n   \n  \nBiographical Information  \nStephan Trenn is an Associate Professor for Systems and Control at the University of Groningen,\nNetherlands (since 2017). His main research interest is the analysis and control of switched\ndifferential-algebraic equations with applications to power grids and this research is currently\nfunded by a Dutch NWO Vidi-grant. Stephan Trenn graduated in Mathematics (Dipl.-Math.) and Computer\nScience (Dipl.-Inf.) at the TU Ilmenau, Germany, in 2004 and 2006 respectively and at the same\nuniversity he received his PhD (Dr. rer. nat.) in 2009. During that time he had a six-month\nresearch visit at the University of Southampton, UK (2004-2005). He held Postdoc positions at the\nUniversity of Illinois at Urbana-Champaign, USA (2009-2010) and at the University of Wuerzburg,\nGermany (2010-2011). From 2011 until 2017 he was Assistant Professor (Juniorprofessor) at the TU\nKaiserslautern, Germany. During that time he also held a one-month guest professor position at the\nUniversity of Valenciennes, France (2013) and he was scientific consultant for the Fraunhofer\nInstitute for Industrial Mathematics (ITWM), Kaiserslautern (2013-2017).\n    \n\n  
DTSTART;TZID=Europe/Berlin;VALUE=DATE:20180130
URL;VALUE=URI:https://www.ist.uni-stuttgart.de/de/veranstaltungen/Vortrag-von-Prof-00001.-Stephan-Trenn/
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