Kai Wulff Hamilton Institute NUI, Maynooth Co. Kildare Ireland

About me

I'm originally from Berlin, Germany. After receiving my "Abitur" from a small school in the southwest, I decided to get an education in economics with BMW in Berlin. I graduated in 1993 with an degree as "Industriekaufmann". A lack of academic challenges and the prospect of student life made me start a course in Electrical Engineering at the TU Berlin. I specialised on control theory, medical signal processing and fault tolerant real-time systems. During the last four years of my studies I gained some practical experience while working as a research student at DaimlerChrysler research. My final thesis "Multivariable control of an active suspension system" was co-supervised by Dr. Jens Kalkkuhl (DaimlerChrysler AG) and Prof. Filbert (TU-Berlin). Curriculum vitae

"Gedächtniskirche"

Current position I am currently employed as a research assistant at the Hamilton Institute, NUI Maynooth funded by the European research training network on  Multi-agent control. I am currently working towards a Ph.D degree in stability theory for switched linear systems. Research interests My current research interests lie mainly in the area of stability criteria for switched linear systems. In particular, I am interested finding stability conditions that are easily applicable and provide insight for the design of stable controllers. My recent work has focused on eigenvalue criteria and frequency-domain analysis using common quadratic and common piecewise linear Lyapunov functions.

Science building, NUI Maynooth

Publications

Robert Shorten, Oliver Mason, Kai Wulff. "Convex cones, Lyapunov functions, and the stability of switched linear systems", In: Proceedings of the Hamilton Summer School on Switching and Learning in Feedback systems, Ed. R. Shorten, R. Murray-Smith,  Lecture Notes in Computing Science, Springer-Verlag, 2004.

Robert Shorten, Paul Curran, Kai Wulff. "On time-domain multiplier criteria for single-input single-output systems“, International Journal of Control, vol. 77, no. 11, pp. 985-991, 2004.

Robert Shorten, K. Narendra, Oliver Mason, Kai Wulff. "On the existence of common quadratic Lyapunov functions for SISO switched systems", 12th Yale Workshop on Adaptive and Learning Systems, 2003.

Robert Shorten, Paul Curran, Kai Wulff. "On time-domain multiplier criteria for single-input single-output systems“, Conference on Decision and Control, 2003

Kai Wulff, John Foy, Robert Shorten. "A note on the relation of periodic stability and absolute stability for switched linear systems“, American Control Conference, 2003.

Kai Wulff, Robert Shorten, Paul Curran. "On the 45° Criterion and the uniform asymptotic stability of classes of second order parameter varying and switched systems“, International Journal of Control, vol. 75, no. 11, pp. 812-823,  2002.

Kai Wulff, Robert Shorten, Paul Curran. "On the relationship of matrix-pencil eigenvalue criteria and the choice of Lyapunov function for the analysis of second order switched systems“, American Control Conference, 2002.

Kai Wulff, Paul Curran, Robert Shorten. "On the infinity-norm and the asymptotic stability of a class of second order time-varying systems“, Irish Signals and Systems Conference, 2001.

Kai Wulff. „Modelling of a four-wheel steering vehicle“, Technical Report Signals and Systems Group, NUIM/2001/02, 2001.

If you are interested in any preprints, drop me an e-mail.

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updated: Sept 2004