Title :
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
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;
Conference_Titel :
Southeastcon '95. Visualize the Future., Proceedings., IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
0-7803-2642-3
DOI :
10.1109/SECON.1995.513131
