# hwk6 - error to a step function b Plot the closed loop unit...

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ECE 3085 Homework 6 Due November 6, 2003 1. A motor has the following transfer function. ) 1 . 0 )( 01 . 0 ( 1 . 0 ) ( + + = s s s G p The closed-loop system should have a time constant sec 4 τ and a damping ratio δ = 0.707. a) Determine the value of K for a proportional compensator that will satisfy the damping ratio criterion. Plot the unit step response of the closed loop system using Matlab. b) Design a compensator that will meet all the specifications. c) Plot the resulting closed loop step response for the controller designed in part b), and compare your results to those obtained in part a) 2. For the motor described in Problem 1, a) Design a controller that has dominant poles at j 5 . 0 5 . 0 ± and zero steady-state
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Unformatted text preview: error to a step function. b) Plot the closed loop unit step response for your design. 3. For the systems given below, sketch the Bode plot on semilog paper. Then, plot the actual Bode plot using Matlab. On each Matlab plot, mark the corner frequencies, and the high and the low frequency asymptotes for both the magnitude and the angle plots. a) ) 1 . )( 01 . ( 1 . ) ( + + = s s s p G b) ) 1 . )( 01 . ( ) 1 ( 1 . ) ( + + + = s s s s p G c) ) 1 . ( 1 . ) ( + = s s s p G d) ) 1 . ( 1 . ) ( 2 + = s s s p G e) ) 01 . )( 1 . ( 10 ) ( + + = s s s s p G 4. Sketch the Nyquist plot for each of the systems in Problem 3....
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## This note was uploaded on 08/30/2011 for the course ECE 3041 taught by Professor Brewer during the Spring '08 term at Georgia Tech.

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