Dynamic anti‐windup design in anticipation of actuator saturation |
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| Authors: | Xiongjun Wu Zongli Lin |
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| Affiliation: | 1. Department of Automation, Shanghai Jiao Tong University, and Key Laboratory of System Control and Information Processing, Ministry of Education of China, , Shanghai 200240, China;2. No. 802 Institute of Shanghai Academy of Space Flight Technology, The Eighth Academy of China Aerospace Science and Technology Corporation, , Shanghai 200090, China;3. Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, , P.O. Box 400743 Charlottesville, VA 22904‐4743, USA |
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| Abstract: | In a traditional anti‐windup design, the anti‐windup mechanism is set to be activated as soon as the control signal saturates the actuator. A recent innovation of delaying the activation of the anti‐windup mechanism, both static and dynamic, until the saturation reaches a certain level of severity has led to a performance improvement of the resulting closed‐loop system. It has been shown that significant further performance improvements can be obtained by activating a static anti‐windup mechanism in anticipation of actuator saturation, instead of immediate or delayed activation. This paper demonstrates that anticipatory activation of a dynamic anti‐windup mechanism would also lead to significant performance improvements over both the immediate and delayed activation schemes.Copyright © 2012 John Wiley & Sons, Ltd. |
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| Keywords: | actuator saturation anticipatory activation anti‐windup dynamic anti‐windup actuator saturation |
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