A Velocity Algorithm for the Implementation of Gain-Scheduled Controllers
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Authors
Kaminer, Isaac
Pascoal, Antonio M.
Khargonekar, Pramod P.
Coleman, Edward E.
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1995
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Abstract
A new method is proposed to implement gain-scheduled controllers for nonlinear plants. Given a family of linear feedback controllers designed for lineariza- tions of a nonlinear plant about constant operating points, a nonlinear gain-scheduled controller is derived that preserves the input-output properties of the linear closed loop systems locally, about each equilibrium point. The key procedures in the proposed method are to provide integral action at the inputs to the plant and differentiate some of the measured outputs before they are fed back to the scheduled controller. For a fairly general class of systems, the nonlinear gain-scheduled controllers are easy to obtain, and their structure is similar to that of the original linear controllers.
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Automatica, Vol. 31, pp. 1185--1191
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I. Kaminer, A.M. Pascoal, P.P. Khargonekar, and E. Coleman, "A Velocity Algorithm for the Implementation of Gain-Scheduled Controllers'', Automatica, Vol. 31, pp. 1185--1191, 1995.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.