Optimal Controller Designs for Rotating Machines - Penalising the Rate of Change of Control Forcing
Houlston, Paul Robert and Garvey, Seamus D. and Popov, Atanas A. (2006) Optimal Controller Designs for Rotating Machines - Penalising the Rate of Change of Control Forcing. In: 7th IFToMM Conference on Rotor Dynamics, 25-28 September 2006, Vienna, Austria.
In the context of active control of rotating machines, standard optimal controller methods enable a trade-off to be made between (weighted) mean-square vibrations and (weighted) mean-square currents injected into magnetic bearings. One shortcoming of such controllers is that no concern is devoted to the voltages required. In practice, the voltage available imposes a strict limitation on the maximum possible rate of change of control force (force slew rate). This paper removes the aforementioned existing shortcomings of traditional optimal control.
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