A COMPUTATIONAL PROCEDURE FOR MULTIVARIABLE STATE FEEDBACK ROBUST CONTROLLER DESIGN | ||
| International Conference on Aerospace Sciences and Aviation Technology | ||
| Article 31, Volume 2, A.S.A.T. CONFERENCE 21-23 April 1987 , CAIRO, April 1987, Pages 895-903 PDF (1.75 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/asat.1987.26185 | ||
| Author | ||
| Mohamed A. Shalaby | ||
| Lecturer, Dept. of Engineering Mathematics & Physics, Faculty of Engineering Alexandria University, Alexandria, Egypt. | ||
| Abstract | ||
| This paper describes a procedure for multivariable state feedback robust controller design. The plant in state space is given by the operational point description or in terms of a vector of slow varying physical parameters. Through solution of the Sylvester matrix equation, a nonunique static feedback controller, which assigns the prespecified closed-loop spectrum, is calculated. In addition, all the remaining feedback degrees of freedom are utilized to optimize a multiobjective function that reflects further design properties. The robust feedback gains is calculated through a three-phase computational algorithm. Numerical examples show that under the robust state feedback control, the closed-loop systems can both achieve satisfied transient characteristics and greatly reduce state trajectory sensitivity to small or large parameter variations in the plant. The pro-posed procedure is still applied to a VTOL aircraft model. | ||
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