Closed-loop

How to evaluate a close-loop control during transient?

How to evaluate a close-loop control during transient?
  1. What are the 4 stages of a closed-loop control system?
  2. What is the necessary condition for closed-loop control?

What are the 4 stages of a closed-loop control system?

In a tension control closed-loop system there are four primary elements: the controller, the torque device (brake, clutch, or drive), the tension measurement device, and the measurement signal.

What is the necessary condition for closed-loop control?

For a closed-loop feedback system to regulate any control signal, it must first determine the error between the actual output and the desired output. This is achieved using a summing point, also referred to as a comparison element, between the feedback loop and the systems input.

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