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Position control of high performance hydrostatic actuation system using a simple adaptive control (SAC) method
- Authors
- Cho, S. H.; Burton, R.
- Issue Date
- Feb-2011
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Position control; Electro hydraulic actuator; Parallel feedforward compensator; Energy-efficiency; Simple adaptive control
- Citation
- MECHATRONICS, v.21, no.1, pp.109 - 115
- Journal Title
- MECHATRONICS
- Volume
- 21
- Number
- 1
- Start Page
- 109
- End Page
- 115
- ISSN
- 0957-4158
- Abstract
- This paper deals with the issue of position tracking control of a high performance hydrostatic actuation system using simple adaptive control. For energy-efficiency and savings, a speed-controlled fixed displacement pump is utilized to drive a symmetrical linear actuator instead of a directional control servo valve. The whole control system is composed of a pair of interconnected subsystems, that is, a feedback control system and a feedforward control system to enhance the tracking performance. The experiment using the proposed control scheme has been performed and a significant reduction in position tracking error is achieved compared to a conventional PID control. (C) 2010 Elsevier Ltd. All rights reserved.
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