A Model-Free Continuous Velocity Observer Formulation With Self-Tuning for Mechatronic Systems

Author:

Deniz Meryem1,Bayrak Alper2,Tatlicioglu Enver1,Zergeroglu Erkan3

Affiliation:

1. Department of Electrical and Electronics Engineering, Izmir Institute of Technology, Urla 35430, Izmir, Turkey e-mail:

2. Department of Electrical and Electronics Engineering, Abant Izzet Baysal University, Bolu 14280, Turkey e-mail:

3. Department of Computer Engineering, Gebze Technical University, Gebze 41400, Kocaeli, Turkey e-mail:

Abstract

In this study, the design of a smooth robust velocity observer for a class of uncertain nonlinear mechatronic systems is presented. The proposed velocity observer does not require a priori knowledge of the upper bounds of the uncertain system dynamics and introduces time-varying observer gains for uncertainty compensation. Practical stability of the velocity observation error is ensured via Lyapunov-type stability analysis. Experimental results obtained from Phantom Omni haptic device are presented to illustrate the performance of the proposed velocity observer.

Funder

Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

Publisher

ASME International

Subject

Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering

Reference20 articles.

1. A Simple Improved Velocity Estimation for Low-Speed Regions Based on Position Measurements Only;IEEE Trans. Control Syst. Technol.,2006

2. Arimoto, S., Parra-Vega, V., and Naniwa, T., 1994, “A Class of Linear Velocity Observers for Nonlinear Mechanical Systems,” Asian Control Conference, Tokyo, Japan, July 27–30, pp. 633–636.

3. A Variable Structure Observer for the Control of Robot Manipulators;Int. J. Appl. Math. Compt. Sci.,2006

4. Sliding Observers for Robot Manipulators;Automatica,1991

5. A Globally Exponentially Convergent Immersion and Invariance Speed Observer for Mechanical Systems With Non-Holonomic Constraints;Automatica,2010

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