A Modified Discrete-Time Sliding Mode Control for Proximate Time-Optimal Servomechanisms
- Title
- A Modified Discrete-Time Sliding Mode Control for Proximate Time-Optimal Servomechanisms
- Author
- 정정주
- Keywords
- Robotics and Control Systems; Sliding mode control; Switches; Convergence; Servomechanisms; Linear systems; Stability analysis; Proximate time-optimal; Discrete-time control
- Issue Date
- 2012-06
- Publisher
- IEEE
- Citation
- 2012 American Control Conference (ACC) American Control Conference (ACC), 2012. :4588-4593 Jun, 2012
- Abstract
- In this paper, a modified discrete-time sliding mode control for proximate time-optimal servomechanisms is proposed in order to improve the performance of point-to-point motion in a 2nd-order damped linear system. The proposed method consists of a proximate time-optimal control, a time varying sliding mode control, and a variable convergence rate factor in discrete-time. Three sufficient conditions are also proposed to ensure the stability of the suggested scheme. The variable convergence rate factor is implemented in the discrete-time sliding mode control in order to eliminate the overshoot problem and reduce the settling time. The proposed controller was applied to a scanning probe microscope-based data storage system so as to compare its performance to that of a proximate time-optimal servomechanism and a sliding mode proximate time-optimal servomechanism.
- URI
- http://ieeexplore.ieee.org/document/6315062/http://hdl.handle.net/20.500.11754/39333
- ISSN
- 0743-1619; 2378-5861
- DOI
- 10.1109/ACC.2012.6315062
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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