2013 Academic Year Seminars
It is sometimes necessary to determine whether a feedback interconnection is internally stable or not using limited information on the systems constituting the feedback loop. The small-gain theorem and the passivity theorem are two examples of such results. Determining the internal stability of feedback interconnections using restricted quantification of systems is important in domains such as robust control (because limited quantification of systems gives rise to classes of uncertainties that can be tackled in different applications) and multiple-model robust adaptive control (because it is frequently desirable to know whether a controller update is stabilising or not on an unknown plant using only signal data). This talk will present two new recent results that establish internal stability of feedback interconnections using only restricted information on the systems constituting the feedback loop.
Dr Alexander Lanzon received his Masters' and Ph.D. degrees in Control Engineering from the University of Cambridge in 1997 and 2000 respectively. Before joining the University of Manchester in 2006,Dr Lanzon held academic positions at Georgia Institute of Technology and the Australian National University. Alexander also received earlier research training at Bauman Moscow State Technical University, Russia,and industrial training at ST-Microelectronics Ltd., National ICT Australia Ltd. and Yaskawa Denki Tokyo Ltd, Japan. His research interests include fundamental theory of feedback systems, robust control and applications to aerospace control (including UAVs and control of new vehicle concepts). Dr Lanzon has authored and co-authered 70 articles in these fields and is a senior member of IEEE and a member of AIAA.