Micro vibration in the ideal-zero gravity environments has complicated science experiment results. A magnetic levitation vibration isolation platform is needed to isolate the vibration source to provide acceptable acceleration level in low frequency range. The configuration of the Lorentz actuators is discussed in the paper. And the modeling of the transformation matrix from the force to the current is deduced. In order to generate desired force, the current is needed to predict precisely. To study the characteristics of the system, the single degree of freedom system is analyzed. A multi-closed loop control scheme is put forward to achieve vibration isolation control. To evaluate the effect of each control parameter, frequency domain analysis of the transfer function is simulated. In order to further increase the control effectiveness, a feed forward compensation control algorithm is added to control the vibration of cables that connect the upper platform and the base. By regulating these control parameters, bode curves can be obtained. Comparing the two methods, it can be concluded that the control method with feed forward compensation is better than the one without that.
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ASME 2014 International Mechanical Engineering Congress and Exposition
November 14–20, 2014
Montreal, Quebec, Canada
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4647-6
PROCEEDINGS PAPER
Simulation of Multi-Closed Loop Control With Feed Forward Control of Micro-Vibration Isolation Platform
Qianqian Wu,
Qianqian Wu
Harbin Institute of Technology, Harbin, Heilongjiang, China
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Honghao Yue,
Honghao Yue
Harbin Institute of Technology, Harbin, Heilongjiang, China
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Rongqiang Liu,
Rongqiang Liu
Harbin Institute of Technology, Harbin, Heilongjiang, China
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Liang Ding,
Liang Ding
Harbin Institute of Technology, Harbin, Heilongjiang, China
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Zongquan Deng
Zongquan Deng
Harbin Institute of Technology, Harbin, Heilongjiang, China
Search for other works by this author on:
Qianqian Wu
Harbin Institute of Technology, Harbin, Heilongjiang, China
Honghao Yue
Harbin Institute of Technology, Harbin, Heilongjiang, China
Rongqiang Liu
Harbin Institute of Technology, Harbin, Heilongjiang, China
Liang Ding
Harbin Institute of Technology, Harbin, Heilongjiang, China
Zongquan Deng
Harbin Institute of Technology, Harbin, Heilongjiang, China
Paper No:
IMECE2014-37253, V04AT04A006; 5 pages
Published Online:
March 13, 2015
Citation
Wu, Q, Yue, H, Liu, R, Ding, L, & Deng, Z. "Simulation of Multi-Closed Loop Control With Feed Forward Control of Micro-Vibration Isolation Platform." Proceedings of the ASME 2014 International Mechanical Engineering Congress and Exposition. Volume 4A: Dynamics, Vibration, and Control. Montreal, Quebec, Canada. November 14–20, 2014. V04AT04A006. ASME. https://doi.org/10.1115/IMECE2014-37253
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