Electrical Engineering ⇒ Topic : Elements of a control system
Elements of a control system:-
Controlled variable:- The quantity or condition of the controlled system which can be directly measured and controlled is called controlled variable.
Indirectly controlled variable:- The quantity or condition related to controlled variable, but cannot be directly measured is called indirectly controlled variable.
Comnand:- The input which can be independently varies is called command.
Reference input:- A standard signal used for comparison in the closed loop system.
Actuating signal:- The difference between the feedback signal and reference signal is called actuating signal.
Disturbance:- Any signal other than the reference which affects the system performance is called disturbance.
System error:- The difference between the actual value and ideal value is called system error. The negative value is called derivation.
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