Energy-efficient tracking control of pneumatic cylinders

Wang, Jihon and Gordon, Tim (2011) Energy-efficient tracking control of pneumatic cylinders. In: Decision and Control and European Control Conference (CDC-ECC), 2011 50th IEEE Conference on, 12 - 15 December 2012, Orlando, FL.

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Pneumatic actuators have been widely used in industry for over a hundred years. However, it is well-known that pneumatic actuators have very poor energy efficiency. Also, it is difficult to achieve accurate positioning due to the inherent nonlinearity caused by air compressibility. This paper presents recent work in developing an energy-efficient tracking control strategy for pneumatic cylinders. The pneumatic system is initially transformed into a linear system description using the nonlinear input/output feedback linearization method. Then energy efficient velocity profile is derived based on optimal control theory. A servo/tracking controller is then designed to drive the system to follow the derived new energy efficiency velocity profile. The simulation study indicates that energy consumption can be reduced by 3-5. © 2011 IEEE.

Additional Information:Conference Code:89653
Keywords:Air compressibility, Energy efficient, Feedback linearisation, Feedback linearization methods, Non-Linearity, Nonlinear inputs, Optimal control theory, Optimal controls, Pneumatic Cylinders, Pneumatic system, Simulation studies, System description, Tracking controls, Velocity profiles, Control, Energy efficiency, Energy utilization, Feedback linearization, Linear systems, Navigation, Nonlinear systems, Pneumatic actuators, Pneumatic drives, Pneumatic equipment
Subjects:H Engineering > H331 Road Vehicle Engineering
Divisions:College of Science > School of Engineering
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ID Code:11653
Deposited On:13 Feb 2014 10:10

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