What is the integral action in a PID controller responsible for?

What is the integral action in a PID controller responsible for?

Step 1: Understand what a PID controller is. It is a control system that uses three actions: Proportional, Integral, and Derivative.
Step 2: Focus on the integral action. This part of the controller looks at the error over time.
Step 3: The error is the difference between the desired value and the actual value.
Step 4: The integral action adds up all the past errors. This means it keeps a running total of how much error has occurred.
Step 5: By accumulating the error, the integral action helps to correct any persistent error that doesn't go away on its own.
Step 6: This process helps eliminate steady-state error, which is when the system settles at a value that is not the desired value.

No concepts available.