Control-based observer for unknown input disturbance estimation in magnetic levitation process

In this paper, an unknown input observer design is proposed for input disturbance estimation in a magnetic levitation process. The observer is designed using a control-based strategy which has been recently introduced. The method is shown to be very efficient for this estimation problem, with results both in simulation and in real time.

[1]  Gildas Besancon,et al.  Nonlinear observers and applications , 2007 .

[2]  R. W. Wilde,et al.  Observers for linear systems with unknown inputs , 1988 .

[3]  C. Johnson,et al.  On observers for systems with unknown and inaccessible inputs , 1975 .

[4]  A Mahmood,et al.  Robust control design of a magnetic levitation system , 2016, 2016 19th International Multi-Topic Conference (INMIC).

[5]  Lei Chen,et al.  A Novel Unknown-Input Estimator for Disturbance Estimation and Compensation , 2014 .

[6]  Iulian Munteanu,et al.  Control-based strategy for effective wind speed estimation in wind turbines , 2014 .

[7]  Harold Chestnut.  The International Federation of Automatic Control , 1960 .

[8]  T. Floquet,et al.  On Sliding Mode Observers for Systems with Unknown Inputs , 2006, International Workshop on Variable Structure Systems, 2006. VSS'06..

[9]  Ankur Goel,et al.  A novel high-order sliding mode control of magnetic levitation system , 2016, 2016 IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS).

[10]  Didier Maquin,et al.  Estimation of unknown inputs in linear systems , 1994, Proceedings of 1994 American Control Conference - ACC '94.

[11]  Iulian Munteanu,et al.  Control strategy for state and input observer design , 2015, Syst. Control. Lett..

[12]  Bidyadhar Subudhi,et al.  Discrete backstepping control of magnetic levitation system with a nonlinear state estimator , 2016, 2016 IEEE Annual India Conference (INDICON).

[13]  H.-G Schulz,et al.  Estimation of wind gusts using an unknown input observer , 1999, 1999 European Control Conference (ECC).

[14]  Ahmed El Hajjaji,et al.  Modeling and nonlinear control of magnetic levitation systems , 2001, IEEE Trans. Ind. Electron..

[15]  Alina Voda,et al.  Control-based Observer design for surface reconstruction using a Scanning-Tunneling-Microscopy device , 2017 .

[16]  S. Bhattacharyya.  Observer design for linear systems with unknown inputs , 1978 .

[17]  M. Saif,et al.  A novel approach to the design of unknown input observers , 1991 .

[18]  J. Kurek.  The state vector reconstruction for linear systems with unknown inputs , 1983 .

[19]  M. Hou,et al.  Design of observers for linear systems with unknown inputs , 1992 .