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4 votes
3 answers
5k views

Controller vs compensator?

Both these terms: controller(forexample PID controller) and compensator(Lead compensator) are often encountered in control systems,but what is difference between these two? Brain douglas in this ...
1 vote
1 answer
3k views

How do we decide to use a lag compensation versus a PI compensation?

Although lag and PI compensation apparently have the same objective of improving the steady state response, how does one decide which one to use?