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Unformatted text preview: Chemical Engineering Department University of Florida ECH 4323 Process Control Theory HOMEWORK No. 11 CLOSEDLOOP DYNAMICS 1.0 Consider the standard feedback loop shown in the figure below. a) The closedloop relationship between the output and the setpoint and disturbance variables is given by the equation Y (s) = G srv (s) R (s) + G reg (s) D (s) where G srv (s) and G reg (s) are respectively the servo and regulation transfer functions for the loop. Derive an expression for G reg (s) and confirm the result using the rule of thumb discussed in class. b) The closedloop relationship between the feedback error and the setpoint and disturbance variables is given by the equation E (s) = G er (s) R (s) + G ed (s) D (s) where G er (s) and G ed (s) are respectively the closedloop transfer functions E (s)/ R (s) and E (s)/ D (s) . Derive an expression for G ed (s) and confirm the result using the rule of thumb discussed in class....
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This note was uploaded on 07/14/2011 for the course ECH 4323 taught by Professor Crissale during the Spring '10 term at University of Florida.
 Spring '10
 Crissale

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