Title :
Robust control with rejection of harmonic disturbances
Author :
Savkin, Andrey V. ; Petersen, Ian R.
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
fDate :
11/1/1995 12:00:00 AM
Abstract :
This paper considers a finite-time output feedback control problem for a class of uncertain systems subject to harmonic disturbances of known frequencies. The controller is required to minimize a quadratic cost functional subject to the given uncertainties and harmonic disturbances. The main result gives a necessary and sufficient condition for the existence of a suitable controller. The condition is given terms of a pair of Riccati differential equations which arise in a corresponding H∞ control problem
Keywords :
Riccati equations; feedback; minimisation; nonlinear differential equations; robust control; uncertain systems; H∞ control; Riccati differential equations; finite-time output feedback control; harmonic disturbances rejection; necessary and sufficient existence condition; quadratic cost functional; robust control; uncertain systems; Control systems; Cost function; Differential equations; Frequency; Output feedback; Riccati equations; Robust control; Sufficient conditions; Uncertain systems; Uncertainty;
Journal_Title :
Automatic Control, IEEE Transactions on
