Improvement of robustness and sensitivity reduction for multivariable nonminimum phase systems

Author

Mohamed, Jama A. ; Kakad, Y.P.

Author_Institution

Dept. of Electr. Eng., North Carolina Univ., Charlotte, NC, USA

fYear

1995

fDate

26-29 Mar 1995

Firstpage

429

Lastpage

435

Abstract

The H_∞ control theory is applied to control a nonminimum phase system, the Turboshaft GE T700 engine. Multi-input multi-output (MIMO) compensator is designed that minimizes the H_∞ norm of the worst case disturbance input to the system. The simulations of both open loop and closed-loop systems are presented. Due to the existence of right-half zeros of the open loop plant, these unwanted modes are modeled as an uncertainty in the system, particularly for those which may result into tighter bounds of the performance that has been specified for this problem

Keywords

H^∞ control; MIMO systems; aircraft control; closed loop systems; compensation; helicopters; robust control; sensitivity analysis; H_∞ control; MIMO compensator; Turboshaft GE T700 engine; closed-loop systems; helicopter; multivariable control systems; nonminimum phase systems; robustness; sensitivity reduction; systems uncertainty; Control systems; Engines; Frequency; Helicopters; Riccati equations; Robust control; Robustness; Tail; Torque control; Turbines;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '95. Visualize the Future., Proceedings., IEEE

Conference_Location

Raleigh, NC

Print_ISBN

0-7803-2642-3

Type

conf

DOI

10.1109/SECON.1995.513131

Filename

513131