Abstract
A method of decentralized stabilization for large scale rotor-bearing systems supported on journal bearings is proposed in this paper. Generally speaking, large scale rotor-bearing systems supported on oil-film journal bearings are always multivariable, nonlinear, and interconnected dynamic systems, research of control design for such systems has not been well developed due to the difficulties contained in. As it is shoswn in this paper, the plant systems can be treated as regular large scale systems, and theory and approaches of large scale systems can be well applied to. Based on the detailed investigation into the plant, a novel conpletely decentralized control scheme has been proposed, in which a simple method of adaptive pole placement as well as an approach of robust model-following control have been developed to improve the stability margin, reduce the effect of nonlinearity and coupling, and restrain the disturbances and unbalance responses of the rotor bearing system. Numerical example has proved the proposed method.
Published Version
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