Controller Vs Compensator | Difference between Controller and Compensator
This page compares Controller Vs Compensator and mentions difference between Controller and Compensator.
• The controller is a device which is used in series with plant in order to drive
the plant towards decreased output.
• There are many types of industrial controllers viz. Proportional controller, Derivative controller, Integral controller, PD controller, PI controller, PID controller etc. The figure-1 depicts PID controller type. These controllers are used for different functions.
• The compensator is a device used to improve performance specifications such as
steady state and transient responses.
• There are three main types of compensator viz. lead compensator, lag compensator and lead-lag compensator. The figure-2 depicts Lead-Lag Compensator type.
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