3622

3421

كارشناسي ارشد

كنترل

اصفهان :دانشگاه صنعتي اصفهان، دانشكده برق وكامپيوتر

1386

ده، 101، [II]،ص.: مصور، جدول، نمودار

ص. ع. به فارسي وانگليسي

جواد عسكري

مسعود كريمي

7/5/86

مهندسي برق و كامپيوتر

ID3421

به فارسي وانگليسي: قابل رويت در نسخه به ديجتال

Abstract Time delay is a natural component of dynamic processes in many engineering fields Also in most industrial systems the parameters of the system are uncertain Thus thecontrol problem of uncertain dynamical systems with time delays is of great importance Inthis thesis output feedback model reference adaptive control of linear plants with statedelays is discussed For this purpose a method is studied in which a feedforward controlcomponent is used in addition to an output feedback The feedforward component isformed by adaptively adjusted prefilters as a function of the delayed states of the referencemodel The output feedback is designed as the plant is without delay but applied to theplant with time delay This two component controller structure makes it possible to solvethe problem of adaptive asymptotic output tracking for the case which the relative degreeof the transfer function of system without delay is one In this thesis the mentionedmethod is extended for the relative degrees two and the closed loop stability has beenproved using a new Lyapunove Krasovskii functional In some systems the actuators mayfail during the system operation In this research an output feedback adaptive controller isdesigned for systems with actuator failures The two component controller structure canalso be used for large scale systems with state delays in the subsystems and in theinterconnections

جواد عسكري

مسعود كريمي