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The Nyquist curve drawn for a certain gain value of a control system is given in the figure. If the open loop system has no poles in the right-side plane, how many poles of the system are in the right-side plane? a) 2 poles are on the right. b) 3 poles are on the right. c) It has no pole in the right half plane. d) 1 pole is on the right.

The Nyquist curve drawn for a certain gain value of a control system is given in the figure. If the open loop system has no poles in the right-side plane, how many poles of the system are in the right-side plane? a) 2 poles are on the right. b) 3 poles are on the right. c) It has no pole in the right half plane. d) 1 pole is on the right.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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The Nyquist curve drawn for a certain gain value of a control system is given in the figure. If the open loop system has no poles in the right-side plane, how many poles of the system are in the right-side plane? a) 2 poles are on the right. b) 3 poles are on the right. c) It has no pole in the right half plane. d) 1 pole is on the right.
Transcribed Image Text:The Nyquist curve drawn for a certain gain value of a control system is given in the figure. If the open loop system has no poles in the right-side plane, how many poles of the system are in the right-side plane? a) 2 poles are on the right. b) 3 poles are on the right. c) It has no pole in the right half plane. d) 1 pole is on the right.
ju G jw)Gi jw)-plane
Transcribed Image Text:ju G jw)Gi jw)-plane
Expert Solution
Step 1

If number of poles in the right half of open loop system = 0 

Then find the number of poles in right half of closed loop system. 

We know in Nyquist plot 

N=P-Z

Where N:- no of encirclement of (-1+j0) 

P:-no of poles in RHP of open loose system. 

Z:-number of poles in RHP of closed loop system. 

 

 

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