Steady state error table

1. What is a steady-state error?
2. What are the three constant steady-state errors?

What is a steady-state error?

A steady-state error is defined as the difference between the desired value and the actual value of a system when the response has reached the steady state. We can calculate the steady-state error of the system using the final value theorem.

What are the three constant steady-state errors?

These constants are the position constant (Kp), the velocity constant (Kv), and the acceleration constant (Ka). Knowing the value of these constants, as well as the system type, we can predict if our system is going to have a finite steady-state error.