Applications of Closed Loop-Control System

Control System

A Control System manages commands, directs, or regulates the behavior of other devices or systems using control loops. It is a control system where its control action depends on both its input signal and output response....

Closed-Loop Control System

A closed-loop control system is a system in which the control action is somehow dependent on the output. The primary objective of a closed-loop control system is to enhance the system’s stability, accuracy, and overall performance. A simple example of a closed -loop control system is a home thermostat. The thermostat can send a signal to the heater to turn it on or off. It uses a temperature sensor to detect the current air temperature....

Operation of Closed Loop Control System

Here we see that the input is fed first and then accept by the controller after the error detection ,before that the input is changed from one form to the another as it performs the role of the reference input with respect to the system. As the controller produces the control signal , action takes place which leads to some specific output. After that the output is measured to check whether it is the desired one or not , for this a section of output signal is fed back to the input which is called as the feedback signal....

Components of Closed Loop Control System

Reference input : Reference point is also known as setpoint. Input signal provided by the signal. This is the target output that the system is designed to follow. Error Detector : It compares the signal obtained from feedback and the reference input. The error detector is a crucial component in a closed-loop control system. Its primary function is to measure the difference between the desired or reference input (setpoint) and the actual output of the system, generating an error signal. Controller: It is the element which produces the desired output from the actuating signal. The controller is a crucial component that calculates the corrective action needed to minimize the error and bring the system output closer to the setpoint. Process: The plant or process represents the system being controlled. It could be a physical system like a motor, chemical process, or any other dynamic system. It is the device to be controlled. Controlled output: It is the quantity which required to be controlled out the desired level. The controlled output is the parameter or variable that the control system aims to control and regulate. Feedback : It is the part of the output signal which fed to the error detector for comparison with reference input. This information is then compared to the reference input to determine the error, which is the difference between the desired and actual outputs....

Types of Feedback

There are two types of feedback:...

Applications of Closed Loop-Control System

It is widely used in industrial applications, including agriculture, nuclear power plants, etc. AC doesn’t stay ON continuously, it will switch from ON to OFF and OFF to ON to maintain defined Temp, that helps to save power by closed loop system. Automatic electric iron can be controlled automatically by the heating element’s temperature in the iron. In the water level controller, the level of water can be decided by the input water....

Advantages and Disadvantages of Closed Loop-Control System

There are some list of Advantages and Disadvantages of Closed Loop-Control System given below :...

Conclusion

Closed-loop systems have many advantages over open-loop systems. The type of control system which uses feedback signals to both control and adjust itself is called a Close-loop System. Closed-Loop Control System are considered as fully automatic control system because it is designed in a way that the achieved output is automatically compared with the reference input to have the required output. Closed-loop systems are designed to automatically achieve and maintain the desired output condition by comparing it with the actual condition....

FAQs on Closed-Loop Control System

What is the purpose of a controller in a closed-loop system?...