What do you mean by compensation in control system?
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Classically, our main requirements of any control system is a) accuracy and b) stability. This is necessary and sufficient condition.
But to achieve accuracy, steady state error essssshould be small. But to keep essss small we have to increse the gain. On increasing gain beyond to an extent it starts effecting the stability of system. So both a and b are counter-complimentary to each other. But we are deliberately interested in both- stability and accuracy.
For example: For to achieve a certain essess, let we calculate the gain to be Kaa from the formula ess=lims→0sR1+Gess=lims→0sR1+G. And from Routh’s array, for stability, we get the range of K- which should be less than some real number, say, N. So we are in dilemma of keeping the gain K equal to Kaa or less than that of N.
This conflict is well taken cared by connecting a circuit between error detector and the plant, known as compensation. This compensation is of three types: (1) Series; (2) Feedback and (3) load compensation. And design is also of three types: (1) Lead; (2) Lag and (2) Lead-Lag or Lag-Lead.
Although it improves the efficiency of overall control action, it increases the circuit complexity and is costlier. That is why highly precised and accurate instruments are costlier than ordinary one when because they require a greater skill and high end troubleshooting
★ Can you please mark the brainliest answer :-)
But to achieve accuracy, steady state error essssshould be small. But to keep essss small we have to increse the gain. On increasing gain beyond to an extent it starts effecting the stability of system. So both a and b are counter-complimentary to each other. But we are deliberately interested in both- stability and accuracy.
For example: For to achieve a certain essess, let we calculate the gain to be Kaa from the formula ess=lims→0sR1+Gess=lims→0sR1+G. And from Routh’s array, for stability, we get the range of K- which should be less than some real number, say, N. So we are in dilemma of keeping the gain K equal to Kaa or less than that of N.
This conflict is well taken cared by connecting a circuit between error detector and the plant, known as compensation. This compensation is of three types: (1) Series; (2) Feedback and (3) load compensation. And design is also of three types: (1) Lead; (2) Lag and (2) Lead-Lag or Lag-Lead.
Although it improves the efficiency of overall control action, it increases the circuit complexity and is costlier. That is why highly precised and accurate instruments are costlier than ordinary one when because they require a greater skill and high end troubleshooting
★ Can you please mark the brainliest answer :-)
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