pi controller

PI controller, also known as a proportional-integral controller, is a type of feedback control system commonly used in engineering applications. It is a combination of two control techniques - proportional control and integral control - to improve the performance of a control system.

Proportional control is based on the error between the desired and actual output and is proportional to that error. Integral control, on the other hand, takes into account the accumulated error over time and adjusts the control output accordingly. The PI controller combines these two control techniques to provide a more robust and stable control system.

In a PI controller, the proportional term is used to provide a quick response to changes in the system, while the integral term helps to eliminate the steady-state error by continuously adjusting the control output over time. By adjusting the proportional and integral gains, the PI controller can be tuned to meet specific performance requirements and provide a stable and accurate control system.