Simplified STR Applied to Level Control of Electrohydraulic Bending Machine
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概要
- 論文の詳細を見る
A two-actuator electrohydraulic bending machine is a typical MIMO system, where the level control function is degraded by the interior structural difference between the two actuators and also by the hydraulic drive interaction. The conventional self-tuning control and decoupling method are too complicated and time-consuming, and are not suitable for this system. Based upon our previous studies, this system can be simplified as two individual sets of servo-control actuating system, which is simulated as a 1st-order ARMAX model and its coupling interactions between actuators are treated as a disturbance term of the ARMAX model. Then, two sets of implicit self-tuning controller and a level control regulator are designed for servo-tracking and level control. This proposed control scheme not only reduces the number of parameter estimations significantly, but also yields the effect of dither in order to overcome the drawbacks of servovalve stickiness and mechanical frictions. Finally, the experimental results indicate its satisfactory performance and prove its superior decoupling ability and disturbance rejection.
- 一般社団法人日本機械学会の論文
- 1996-12-15
著者
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Wang Ying-tsai
Department Of Mechanical Engineering National Taiwan University Of Science And Technology
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Wang Ying-tsai
Department Of Mechanical Engineering National Taiwan Institute Of Technology
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Huang Chih-Hsiung
Department of Mechanical Engineering, National Taiwan Institute of Technology
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Huang Chih-hsiung
Department Of Mechanical Engineering National Taiwan Institute Of Technology
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Wang Ying-Tsai
Department of Mechanical Engineering, National Taiwan Institute of Technology
関連論文
- The Simplest Identification Model of an Asymmetric Hydraulic System
- Comparatively Implementations of a 3-Axial Electrohydraulic Control System
- Simplified STR Applied to Level Control of Electrohydraulic Bending Machine
- Comparative Implementations of a Hydraulic-Contorol Fatigue Testing Machine