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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Song, G. Wang, Y. Cai, L. Longman, R.W. |
| Copyright Year | 1995 |
| Description | Author affiliation: Dept. of Mech. Eng., Columbia Univ., New York, NY, USA (Song, G.; Wang, Y.) |
| Abstract | A new approach employing both adaptive and robust methodologies is proposed for stick-slip friction compensation for tracking control of an one-DOF DC-motor system. It is well-known that the major components of friction are Coulomb force, viscous force, exponential force (used to model the downward bend of friction at low velocity) and position-dependent force. Viscous force is linear and Coulomb force is linear in parameter; thus, these two forces can be compensated by adaptive feedforward cancellation. Meanwhile, the latter two forces, which are neither linear nor linear in parameters, can only be partially compensated by feedforward cancellation. Therefore, a robust compensator with an embedded adaptive law to online "learn" the upper bounding function is proposed to compensate the uncanceled exponential and position-dependent friction. Lyapunov's direct method is utilized to prove the globally asymptotic stability of the servo-system under the proposed friction compensation method. |
| Starting Page | 3531 |
| Ending Page | 3535 |
| File Size | 551938 |
| Page Count | 5 |
| File Format | |
| ISBN | 0780324455 |
| DOI | 10.1109/ACC.1995.533793 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1995-06-21 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Programmable control Adaptive control Robust control Sliding mode control Friction Upper bound Asymptotic stability Motion control Robust stability Robots |
| Content Type | Text |
| Resource Type | Article |
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