Record number :
106431
Title of article :
PID controller design for disturbed multivariable systems
Author/Authors :
Y.، Zhang نويسنده , , L.-S.، Shieh, نويسنده , , A.C.، Dunn, نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
10
From page :
567
To page :
576
Abstract :
A linear-quadratic-regulator-based (LQ-regulator-based) design methodology is proposed to design proportional-integralderivative (PID) controllers for multivariable systems with load disturbances. Except for a few parameters that are preliminarily selected, most of the PID parameters are systematically tuned using the developed plant state-feedback and controller state-feedforward LQR approach, such that satisfactory performance with guaranteed closed-loop stability is achieved. In order to access the plant state variables and carry out disturbance rejection, an observer-based disturbance rejection technique is proposed, which through an ʹequivalent disturbanceʹ concept, retains the observation error to be used for disturbance compensation. This makes disturbance measurement unnecessary and the disturbance rejection tuning independent of the set-point response adjustment. A robust stability analysis is also included for the modelling error. An illustrative example is given for comparison with alternative techniques.
Keywords :
Distributed systems
Journal title :
IEE PROCEEDINGS CONTROL THEORY & APPLICATIONS
Serial Year :
2004
Link To Document :
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