Advantages of Feedback control
The feedback control is self-correcting. If the input adjustments failed to produce the correct output, then the feedback control can identify the error and make further adjustments accordingly. This process will continue till the desired output is achieved.
Disadvantages of Feedback control
1.The feedback control takes corrective action only after the disturbances has affected the process and generated an error.
2.The feedback control corrects the output deviations by trial and error method which results in the oscillatory response of the feedback loop.
- Feedback control continues to change its output until the error is zero. There exists a finite delay between the detection of disturbance and the effect of control action on the controlled variable.
4.The inclusion of feedback control to a process affects stability, sensitivity and overall gain.
Author - Menora Samuel