Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 32, Problem 7SQ
In Figure 32–7, the motor cannot be started in high speed. Why?
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1. In the following closed-loop system, a PD controller of the form K(s + 5) is used. Design the gain K such
that the system achieves an overshoot of 16%. Calculate the settling time and peak time for the PD
controlled system.
Compensator
R(s) +
E(s)
Plant
1
C(s)
K(s+Zc)
(s+1)(s+2)(s+5)
Find Vo
3. Use MATLAB to generate the Nyquist plot for the following system. Then, apply the Nyquist stability
criterion to determine the range of K values that ensure the stability of the closed-loop system.
R(s)+
K
C(s)
(s+2)
1
(s + 4)(s+6)
Chapter 32 Solutions
Electric Motor Control
Ch. 32 - Prob. 1SQCh. 32 - Prob. 2SQCh. 32 - What will happen if terminals T5 and T6 in Figure...Ch. 32 - Is the motor operating at high speed or low speed...Ch. 32 - Describe the operation of the line diagram in...Ch. 32 - Describe the operation of Figure 325 (B) by adding...Ch. 32 - In Figure 327, the motor cannot be started in high...Ch. 32 - Prob. 8SQ
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