LECTURE 27: FEEDBACK CONTROL. Objectives: Typical Feedback System Feedback Example Feedback as Compensation Proportional Feedback Applications
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LECTURE 27: FEEDBACK CONTROL
System Function For A Closed-Loop System
The Use Of Feedback As Compensation
Independent of P(s)
Stabilization of an Unstable System
Second-Order Unstable System
The Concept of a Root Locus
Closed-loop poles are the same.
Example: First-Order System
Becomes less stable
Becomes more stable
Example: Second-Order System With Proportional Control
How Do The Poles Move?
Feedback System – Implementation
More General Case
Feedback System – Use Proportional Derivative Control