EO Q Q N Root Locus Nyquist Diagram 20 0.5 0.4 15 0.3- 10 0.2- 0.1 0+ -0.1 -5 -0.2 -10 -0.3 -15 -0.4 -20 -250 -0.5 -1 -200 -150 -100 -50 50 100 150 200 -0.8 -0.6 -0.4 -0.2 0.2 1 (seconds) Real Axis Nyquist Diagram Root Locus 20 15 3 10 2 5 -1 -5 -2 -10 -3 -15 -4 -5 -1 -20 -400 4 -350 -300 -250 -200 -150 -100 -50 50 Real Axis 2 (seconds") Nyquist Diagram Root Locus 0.5 20 0.4 15 0.3 10 0.2 .1 0.1 -0.1 E -5- -0.2 -10 -0.3 -15 -0.4 -0.5 -1.2 -20 -250 -1 -0.8 -0.6 -0.4 -0.2 0.2 -200 -150 -100 -50 50 100 150 200 Real Axis 3 (seconds") 3 (seconds") 2 (seconds") ( spu)

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter9: Components For Electric Motors
Section: Chapter Questions
Problem 14RQ
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Which row represent the most stable system and why? nyquist and root locus plot attached. 

EO Q Q N
Root Locus
Nyquist Diagram
20
0.5
0.4
15
0.3-
10
0.2-
0.1
0+
-0.1
-5
-0.2
-10
-0.3
-15
-0.4
-20
-250
-0.5
-1
-200
-150
-100
-50
50
100
150
200
-0.8
-0.6
-0.4
-0.2
0.2
1 (seconds)
Real Axis
Nyquist Diagram
Root Locus
20
15
3
10
2
5
-1
-5
-2
-10
-3
-15
-4
-5
-1
-20
-400
4
-350
-300
-250
-200
-150
-100
-50
50
Real Axis
2 (seconds")
Nyquist Diagram
Root Locus
0.5
20
0.4
15
0.3
10
0.2
.1
0.1
-0.1 E
-5-
-0.2
-10
-0.3
-15
-0.4
-0.5
-1.2
-20
-250
-1
-0.8
-0.6
-0.4
-0.2
0.2
-200
-150
-100
-50
50
100
150
200
Real Axis
3 (seconds")
3 (seconds")
2 (seconds")
( spu)
Transcribed Image Text:EO Q Q N Root Locus Nyquist Diagram 20 0.5 0.4 15 0.3- 10 0.2- 0.1 0+ -0.1 -5 -0.2 -10 -0.3 -15 -0.4 -20 -250 -0.5 -1 -200 -150 -100 -50 50 100 150 200 -0.8 -0.6 -0.4 -0.2 0.2 1 (seconds) Real Axis Nyquist Diagram Root Locus 20 15 3 10 2 5 -1 -5 -2 -10 -3 -15 -4 -5 -1 -20 -400 4 -350 -300 -250 -200 -150 -100 -50 50 Real Axis 2 (seconds") Nyquist Diagram Root Locus 0.5 20 0.4 15 0.3 10 0.2 .1 0.1 -0.1 E -5- -0.2 -10 -0.3 -15 -0.4 -0.5 -1.2 -20 -250 -1 -0.8 -0.6 -0.4 -0.2 0.2 -200 -150 -100 -50 50 100 150 200 Real Axis 3 (seconds") 3 (seconds") 2 (seconds") ( spu)
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