Question
Download Solution PDFThe number of direction of encirclements around the point -1 + j0 in the complex plane by the Nyquist plot of
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The Nyquist plot is used to assess the stability of a closed-loop control system using the open-loop transfer function
Given transfer function:
Poles of G(s):
According to the Nyquist criterion:
- N = number of encirclements of point
(clockwise = negative, anticlockwise = positive) - Z = number of right-half plane poles of closed-loop transfer function
- P = number of right-half plane poles of open-loop transfer function (here, P = 0)
Since the open-loop poles are in LHP, the Nyquist plot of
Hence, the number of encirclements is: zero
Final Answer: zero
Last updated on Jul 15, 2025
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