Working of Proportional Controller
The proportional controller initially compares the Set Point (SP) value with the actual Process Variable (PV) value. Following this, the system’s feedback loop becomes operational, continuously monitoring the system’s output and comparing it to the desired output. As necessary, the inputs are modified to minimize the disparity between the output and the desired value.
Subsequently, the controller generates an error signal, which is then multiplied by a proportional gain factor. This multiplication yields an output that is proportionate to the error signal and endeavors to bring the system closer to the desired value. The feedback loop plays a pivotal role in ensuring the system’s ability to adapt to changing conditions and maintain a stable output, even in the face of internal or external disturbances. This text is free from plagiarism.
Proportional Controller in Control System
Controller is a combination of hardware device and software program in control system that manages the flow of data from one entity to another and generates required output . Their are several techniques or algorithms that uses in automation system to control a system. One of the type that is used in PID controller is Proportional controller or P-only controller. This is the simplest closed loop feedback control.