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The transfer function 
represents a
represents a- a)lag network
- b)lead network
- c)lag-lead network
- d)proportional controller
Correct answer is option 'A'. Can you explain this answer?
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The transfer functionrepresents aa)lag networkb)lead networkc)lag-lead...
Concept:
Lag compensator:
Transfer function:
If it is in the form of
then a < 1
If it is in the form of
then a > b
Maximum phase lag frequency:
ωm = 1/T√a
Maximum phase lag: ϕm = sin−1(α−1/α+1)
ϕm is negative
Pole zero plot:
The pole is nearer to the origin.
Given:
Zero = -2
Pole = -1
Analysis:
The pole-zero plot of T(s) is as shown:
Since the pole is closer to the origin than zero.
It is a lag compensator.
Lag compensator:
Transfer function:
If it is in the form of
then a < 1If it is in the form of
then a > bMaximum phase lag frequency:
ωm = 1/T√a
Maximum phase lag: ϕm = sin−1(α−1/α+1)
ϕm is negative
Pole zero plot:
The pole is nearer to the origin.
Given:
Zero = -2
Pole = -1
Analysis:
The pole-zero plot of T(s) is as shown:
Since the pole is closer to the origin than zero.
It is a lag compensator.
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Community Answer
The transfer functionrepresents aa)lag networkb)lead networkc)lag-lead...
Concept:
Lag compensator:
Transfer function:
If it is in the form ofthen a < 1
If it is in the form ofthen a > b
Maximum phase lag frequency:
ωm = 1/T√a
Maximum phase lag: ϕm = sin−1(α−1/α+1)
ϕm is negative
Pole zero plot:
The pole is nearer to the origin.
Given:
Zero = -2
Pole = -1
Analysis:
The pole-zero plot of T(s) is as shown:
Since the pole is closer to the origin than zero.
It is a lag compensator.
Lag compensator:
Transfer function:
If it is in the form of
then a < 1If it is in the form of
then a > bMaximum phase lag frequency:
ωm = 1/T√a
Maximum phase lag: ϕm = sin−1(α−1/α+1)
ϕm is negative
Pole zero plot:
The pole is nearer to the origin.
Given:
Zero = -2
Pole = -1
Analysis:
The pole-zero plot of T(s) is as shown:
Since the pole is closer to the origin than zero.
It is a lag compensator.
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The transfer functionrepresents aa)lag networkb)lead networkc)lag-lead networkd)proportional controllerCorrect answer is option 'A'. Can you explain this answer?
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