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.
Subjects
nonlinear control
gain scheduling
robust control
controller implementation
Advisors
Date of Issue
1995
Date
1995
Publisher
Elsevier Science Ltd
Language
Abstract
A new method is proposed to implement gain-scheduled controllers for nonlinear plants. Given a family of linear feedback controllers designed for linearizations 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.
Type
Article
Description
Series/Report No
Department
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Research Initiation Grant of the Naval Postgraduate School
NSF under Grant ECS-9096109
AFOSR under Grant F49620-93-1-0246
AR under Grant DAAH01-93-G-0012
Format
7 p.
Citation
Automatica, Vol. 31, No. 8, pp. 1185-1191, 1995
Distribution Statement
Rights
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.
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