BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Topics on Fast NMPC : The control updating period issue
DTSTART:20121012T101500
DTEND:20121012T110000
DTSTAMP:20260430T185522Z
UID:57b4949827198f83102fa2d93509f9a6ea52d1b09f5f8ded4590548c
CATEGORIES:Conferences - Seminars
DESCRIPTION:Mazen Alamir (Directeur de recherche CNRS\, University of Gren
 oble)\nIn this talk\, the need for special formulations when implementing 
 Nonlinear Model Predictive Control to systems showing fast dynamic is reca
 lled. In particular\, the now widely admitted idea of distributing the opt
 imization of the cost function over the system life-time is discussed. Mor
 e precisely\, this means that only a finite number of iterations of some d
 escent method are applied before the control sequence is updated leading h
 opefully to recover the ideal standard NMPC asymptotically. Nevertheless\,
  the way this finite number of iterations is determined is still to be inv
 estigated. The talk then focuses on a proposition for a rational adaptatio
 n of this number using cheap computations that are based on the on-line al
 gorithm behaviour. While the proposed framework is general\, some specific
  investigations are proposed when the underlying descent method is the fas
 t gradient that is currently under intense investigation by the fast NMPC 
 community. An illustrative example is given in order to assess the efficie
 ncy of the proposed framework. It is shown in particular that regardless t
 he initial choice of the control updating period\, the scheme converges to
  a somehow optimal behaviour.\n\nBiographic sketch\n\nMazen Alamir graduat
 ed in Mechanics (Grenoble\, 1990) and Aeronautics (Toulouse 1992). He rece
 ived his PhD in Nonlinear Model Predictive Control in 1995. Since 1996\, h
 e has been a CNRS research associate (National French Research Centre) in 
 the Control Systems Department of the University of Grenoble and becomes D
 irector of Research in 2008. His main research topics are NMPC\, Moving-Ho
 rizon Observers\, Nonlinear Hybrid Systems\, Signature Based Diagnosis\, O
 ptimal cancer treatment as well as industrial applications (Smart Building
 s\, Stirling Engines\, Cryogenic plants\, polymerization and chromatograph
 ic processes). He is member of the IFAC technical committees on “Nonline
 ar Systems” and “Optimal Control” and is member of the IEEE Conferen
 ce Editorial Board. He served as head of the “Nonlinear Systems and Comp
 lexity Group” of the control system department. He was recipient of five
  funding grants from the French National Research Agency and managed over 
 ten R&D industrial contracts. He organized the first IFAC workshop on NMPC
  for fast systems in Grenoble\, 2006 and served as guest editor of a speci
 al Fast- NMPC issue of the international Journal of Robust and Nonlinear C
 ontrol.
LOCATION:ME C2 405
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR