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Unformatted text preview: tions are zero. 3. (34pts) A system has the closed-loop unit step response depicted in Figure 2. (a) What is the (minimum) system type number of the loop transfer function? Explain your answer. (b) Compute the dominant poles of the closed-loop system. (c) Do you think that the closed-loop system behaves exactly like a second-order system (no zeros and only two poles)? Why or why not? (d) Sketch the pole-zero map of the closed-loop system. Indicate on the pole-zero map how you would move the dominant poles if you needed a shorter settling time without changing the percent overshoot. Step Response Time (sec) Amplitude 1 2 3 4 5 6 0.2 0.4 0.6 0.8 1 1.2 1.4 System: sys Final Value: 1 System: sys Time (sec): 4.25 Amplitude: 1.02 System: sys Peak amplitude: 1.04 Overshoot (%): 4.32 At time (sec): 3.14 Figure 2: Unit step response for Problem 3....
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This note was uploaded on 09/18/2011 for the course ASE Controls taught by Professor Bishop during the Spring '10 term at University of Texas at Austin.
- Spring '10