closed-loop_transfer_functions

closed-loop_transfer_functions - Closed-Loop Transfer...

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Closed-Loop Transfer Functions 1. Introduction 2. Stirred tank heating system 3. Closed-loop block diagrams 4. Closed-loop transfer functions 5. Simulink example
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Introduction Block diagrams » Convenient tool to represent closed-loop systems » Also used to represent control systems in Simulink Closed-loop transfer functions » Transfer function between any two signals in a closed-loop system » Usually involve setpoint or disturbance as the closed-loop input and the controlled output as the closed-loop output » Conveniently derived from block diagram » Can be derived automatically in Simulink » Used to analyze closed-loop stability and compute closed-loop responses
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Control objective » Drive outlet composition ( x ) to setpoint ( x sp ) by manipulating pure stream flow rate ( w 2 ) despite disturbances in flow rate ( w 1 ) and composition ( x 1 ) of other feed stream Control system » Measure x with composition analyzer (AT) » Perform calculation with
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This document was uploaded on 02/04/2012.

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closed-loop_transfer_functions - Closed-Loop Transfer...

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