Explain the PID and why do we need it
Proportional–integral–derivative, used in boiler. to control steam&Water, A proportional–integral–derivative controller is a control loop mechanism employing feedback that is widely used in industrial control systems and a variety of other applications requiring continuously modulated control. This is the parameter of closed-loop control, such as P proportional, I integral, and D is the derivative tune for minimizing error to zero. That’s available for the function block of the controller. You can adjust for the best tuning, for acceleration, the accuracy of respond controller