Moving-Horizon Guaranteed Parameter Estimation

Speaker:    Ms.Petra Artzova

Time:        15:00-16:00, Apr. 3

Location:    SIST 1A 212

Host:         Prof.Boris Houska

Abstract:

This paper is concerned with guaranteed parameter estimation of non-linear dynamic systems in a context of bounded measurement error. The problem consists of approximating the set of all possible parameter values such that the predicted values of plant outputs match their corresponding measurements within prescribed error bounds. Efficient algorithms are studied for bounding the set of guaranteed parameter estimates, where, in order to enhance the solution procedure, we investigate a novel method using principles of moving-horizon estimation. The principle of the method lies in selection of a subset of available measurements, which are then used for on-line calculations. The crucial part of the method is the selection procedure of these measurement points, where we propose three different methods. We apply the proposed methodology to a case study of a membrane process. The proposed approach is found to significantly reduce the computational burden, in terms of CPU time, as compared to state- of-the-art approaches. 

Bio: 

Petra Artzováreceived her MSc. degree in Automation and Information Engineering in Chemistry and Food Industry from Slovak University of Technology in Bratislava. At present, she continues to work at Institute of Information Engineering, Automation, and Mathematics as a PhD. student in Process Control. Her main research interests include guaranteed parameter estimation and real-time nonlinear model predictive control. 

SIST-Seminar 18138