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Truncated Predictor Feedback Control for Active Magnetic Bearing Systems With Input Delay | IEEE Journals & Magazine | IEEE Xplore
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Truncated Predictor Feedback Control for Active Magnetic Bearing Systems With Input Delay


Abstract:

In this brief, we investigate the control of linear systems with input delay with applications to active magnetic bearings (AMBs). This study is motivated by emerging ene...Show More

Abstract:

In this brief, we investigate the control of linear systems with input delay with applications to active magnetic bearings (AMBs). This study is motivated by emerging energy explorations that require compressors and other rotating machines to operate in remote locations. The separation between the machine and the control site in these applications, which may extend for several kilometers, introduces a time delay in the transmission of the control signals. Here, we study the effect of input delay in the control of AMBs in remote rotating machines and we present a truncated predictor feedback (TPF) control design to maximize the input delay that the stable closed-loop system can tolerate. The controller corresponding to the maximum input delay is obtained iteratively from the solutions to local linear matrix inequality problems. The capabilities of the designed TPF controller are first verified through simulation and then experimentally validated on an AMB test rig.
Published in: IEEE Transactions on Control Systems Technology ( Volume: 24, Issue: 6, November 2016)
Page(s): 2182 - 2189
Date of Publication: 04 March 2016

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