Proportional-integral-derivative (PID) control is the most common control algorithm used in the industry and has been universally accepted in industrial control. The basic idea behind a PID controller is to read a sensor and then compute the desired actuator output by calculating proportional, integral, and derivative responses and summing those three components to compute the output. The design of a general PID controller is as follows:
Furthermore, a PID controller formula can be defined as follows:
represents ...
