Which circuit is used to design electronic pi controller

A simple analog circuit can be used to implement PI control. As shownin the schematic of Figure 6-9 below ,a series resistor and capacitor are connected across the feedback pathof an op-amp to form the proportional (RL) and integral (CL) gains.

1. How does pi controller work?
2. Why do we use PI controller?
3. What is a PI controller what are its effects on the system performance?

How does pi controller work?

A P.I Controller is a feedback control loop that calculates an error signal by taking the difference between the output of a system, which in this case is the power being drawn from the battery, and the set point.

Why do we use PI controller?

The PI (Proportional and Integral) controller is a commonly used method in control systems to correct for error between the commanded setpoint and the actual value based on some type of feedback. KEB drives implement the PI controller in the speed control portion of the closed-loop control block diagram.

What is a PI controller what are its effects on the system performance?

PI control is a form of feedback control. It provides a faster response time than I-only control due to the addition of the proportional action. PI control stops the system from fluctuating, and it is also able to return the system to its set point.