i. Draw the root locus of the control system having open loop transfer function K G(s)H(s) = s(s + 1)(s+ 5) ii. Describe the role of the process reaction curve ( Figure 3 )and the Ziegler-Nichols PID tuning rules (Table 1) in control system design. Tangent line at inflection point K

i. Draw the root locus of the control system having open loop transfer function K G(s)H(s) = s(s + 1)(s+ 5) ii. Describe the role of the process reaction curve ( Figure 3 )and the Ziegler-Nichols PID tuning rules (Table 1) in control system design. Tangent line at inflection point K

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

i.
Draw the root locus of the control system having open loop transfer function
K
G(s)H(s)
s(s + 1)(s + 5)
ii.
Describe the role of the process reaction curve ( Figure 3 )and the Ziegler-Nichols
PID tuning rules (Table 1) in control system design.
c(1)
Tangent line at
inflection point
Figure 3
Table: 1 Zeigler-Nichols PID controller Tuning rules
Туре of
Controller
Kp
T
T
L
L
PI
0,9!
0.3
125
T
PID
2L
0.5L

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