Brian Mace design via root locus Flashcards

1
Q

What can we do if we want a transient response that does not currently lie on the root locus?

A

Add a pole or zero.

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2
Q

How do we add a pole or zero?

A

Add a compensator to the system as this will change the pole / zero structure and therefore the root locus.

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3
Q

What is the effect of adding a pole to the system?

A

It will pull the root locus to the right and slow the relative response of the system, it will improve the steady state error performance.

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4
Q

What is the effect of adding a zero to the system?

A

It will add phase lead to the system by pulling the root locus to the left. Makes the system more stable and speeds up the system response.

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5
Q

What is the equation for a PD compensator?

A

Gc(s) = Kc * (s + Zc)

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