PID Controller

A proportional–integral–derivative (PID) controller is a control loop mechanism employing feedback that is widely used in industrial control systems and applications requiring continuously modulated control.

The proportional–integral–derivative controller is a control loop mechanism employing feedback that is widely used in industrial control systems, process automation, transportation, and other applications. As an integral part of the overall control system design, the PID controller improves efficiency, maximizes safety and reliability, reduces disturbances and disturbances caused by external disturbances or disturbances in the value which causes disturbances to arise.

The PID controller adjusts the proportional, integral and differential gains of an internal feedback loop to maintain an output signal within a set range. The control technique is widely used in industrial control systems, including DC motor drives and variable speed drives for turbines and aircraft.

A PID controller (named after its basic mathematical representation, the proportional–integral–derivative model) combines an input sensor and a control device to monitor the system’s response, determine what the desired output should be, calculate the required output and apply it to achieve that result. PID controllers are found in many industrial applications such as heating, ventilation and air-conditioning (HVAC), robotics, manufacturing and wind power systems.