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Adaptive Backstepping Slide Mode Control of Pneumatic Position Servo System 被引量:12
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作者 REN Haipeng FAN Juntao 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2016年第5期1003-1009,共7页
With the price decreasing of the pneumatic proportional valve and the high performance micro controller, the simple structure and high tracking performance pneumatic servo system demonstrates more application potentia... With the price decreasing of the pneumatic proportional valve and the high performance micro controller, the simple structure and high tracking performance pneumatic servo system demonstrates more application potential in many fields. However, most existing control methods with high tracking performance need to know the model information and to use pressure sensor. This limits the application of the pneumatic servo system. An adaptive backstepping slide mode control method is proposed for pneumatic position servo system. The proposed method designs adaptive slide mode controller using backstepping design technique. The controller parameter adaptive law is derived from Lyapunov analysis to guarantee the stability of the system. A theorem is testified to show that the state of closed-loop system is uniformly bounded, and the closed-loop system is stable. The advantages of the proposed method include that system dynamic model parameters are not required for the controller design, uncertain parameters bounds are not need, and the bulk and expensive pressure sensor is not needed as well. Experimental performance, as compared with some existing methods. results show that the designed controller can achieve better tracking 展开更多
关键词 pneumatic position servo system adaptive backstepping design slide mode control uncertain parameter tracking accuracy
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Improvement of Dynamic and Steady Characteristics of Pneumatic Position Servo with Fuzzy-PI Control
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作者 杨功军 赵彤 《Journal of Beijing Institute of Technology》 EI CAS 1995年第1期57+53-57,共6页
This paper provided a fuzzy-PI control. It makes use of the advantages of fuzzy controller for dynamic characteristics, and the advantages of PI control for steady characteristics of pneumatic position servo. Experime... This paper provided a fuzzy-PI control. It makes use of the advantages of fuzzy controller for dynamic characteristics, and the advantages of PI control for steady characteristics of pneumatic position servo. Experimental results show that positioning accuracy meets the conventional industrial needs, and prove that the fuzzy-PI controller to be correct and more effective than the usual PID controller. The control method improve the dynamic and steady characteristics of the system. 展开更多
关键词 non-linear control system fuzzy control/pneumatic position servo fuzzy-PI control
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