Accurate decoupled linear modeling for robust H∞ control of multi axis shaking tables
Ghorashi, A., Plummer, A., Edge, K. and Keogh, P., 2010. Accurate decoupled linear modeling for robust H∞ control of multi axis shaking tables. In: 2009 ASME Dynamic Systems and Control Conference (DSCC2009), 2009-10-12 - 2009-10-14, Hollywood, CA. New York: ASME, pp. 1555-1562.
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This paper illustrates an improved linear modeling method for multi axis electro-hydraulically actuated servo systems to enable the design of high performance and robust H∞ controllers. The model is validated for a Multi Axis Simulation Table (MAST) located at the University of Bath. The dynamic analysis of the MAST proves the effectiveness of the modeling technique compared with conventional methods. Based on the validated linear model, the uncertainties of the system, as determined from parameter estimation errors and system nonlinearities, are quantified. This leads to the design of an H ∞, controller for the MAST. The simulated performance of this controller is then compared with that of a classical PI controller. In this paper, the control potential is demonstrated for horizontal table motion.
|Item Type||Conference or Workshop Items (UNSPECIFIED)|
|Creators||Ghorashi, A., Plummer, A., Edge, K. and Keogh, P.|
|Departments||Faculty of Engineering & Design > Mechanical Engineering|
University Administration & Central Services > Vice-Chancellor's Office
|Additional Information||2009 ASME Dynamic Systems and Control Conference, DSCC2009. 12-14 October 2009. Hollywood, CA, United States.|
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