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| Research on the Control of Electromagnetic Suspension Vibration Isolator based on LMS Algorithm with Saturation Constraint |
| CHEN Hao1, WANG Yong1,LI Jia-quan2, LU Yang1 |
| 1.Department of Automation, University of Science and Technology of China, Hefei, 2300272.Department of the Imaging and Measuring of Aviation, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Science, Changchun 130033 |
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Abstract Abstract: Limiting the output power of the electromagnetic suspension vibration isolator is researched in this thesis .Because limiting anti-saturated LMS algorithm is very likely aroused and deteriorates the effect of control of the system and the threshold is difficult to determine of Boaz Rafaely algorithm, if the threshold is large, the system is very likely aroused and deteriorates the effect of control, if the threshold is small, the effect of the system control is bad,a novel approach, namely adding continuous punished function, is proposed in the framework of the adaptive feedforward control on the basis of LMS algorithm. The improvement LMS algorithm is reduced and the anti-saturation adaptive feedforward control law is designed accordingly. In order to verify the method is more superior than limiting anti-saturated LMS algorithm and Boaz Rafaely algorithm, simulation and active vibration control experiment on the electromagnetic suspension vibration isolation system was designed.
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Received: 18 May 2011
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2012, Vol. 31 
