CLOSED LOOP CONTROL SYSTEM

CLOSED LOOP CONTROL SYSTEM

 
closed loop control system is also known as the feedback control system. in closed loop control system the output of the process is feed back to the control to manipulate the control variable.
                       we know that to make the system more efficient it is require to allow the system to interact with environment. the main goal of the closed loop control system is to measure the error between the output signal and reference signal.
these  systems are more expensive because it consist of an additional circuit which is known as feedback control circuit.closed loop control system is generally consist of sensor as a measuring device. the main function of the sensor is to check the output continuously and compare it with the reference signal or input signal and generate a error signal. this error is further used to manipulate the control variables.


WHY WE USE THE CLOSED LOOP CONTROL SYSTEM
the  main motive of closed loop control system is to make the system more intelligent and also interact with the environment.
 
 
control_theory-closed_loop CLOSED LOOP CONTROL SYSTEM
 
 
 
As we know that there are number of parameters on which the system performance is dependent. but due to the disturbance within the process  system parameters become different. these disturbances generates error between the output and input signal.so to reduce the error it is require to check the error between the output and input signal. the closed loop control system has an ability to manipulate the errors.
 
 

ADVANTAGE OF CLOSED LOOP SYSTEM

1.these system are more reliable and accurate because 
of feedback control system.
 
2.these system have noise reduction ability.
 
3.automation facility.

4. reduces the disturbance within the plant.


DISADVANTAGE OF CLOSED LOOP SYSTEM

 
1. these  are more expensive than the open loop control system.
 
2. designing of the closed loop system is more complex than the open loop system.
 
3.these system possesses less stability
 
4.these are system that require more maintenance.
 
 
 

Save

Save

Leave a Reply

Your email address will not be published. Required fields are marked *