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Higher Study | Control Systems | Controllers and Compensators

The block diagram of a feedback compensated system is given below: Which of the following statements are correct? a) When Kt = 0, the feedback compensation is in-effective and the system is uncompensated b) When Kt = 0, the feedback compensation is most effective and system is compensated c) The performance of the compensated system depends on Kt and T d) The performance of the compensated system does not depend on T
Consider a unity feedback system shown below If G(s) has 5 left half s-plane (LHP) poles, 4 LHP zeroes and 1 right half s-plane (RHP) zero, then
The pole-zero configuration of the transfer function of a compensator and the corresponding Bode plot is shown in the figure. The configuration is indicative of \(TF = \frac{{\left( {1 + 2s} \right)}}{{\left( {1 + 16s} \right)}}\frac{{\left( {1 + 0.75s} \right)}}{{\left( {1 + 0.1s} \right)}}\)
Which of the following is NOT the disadvantage of lag compensator in a control system?
Which one of the following statements is not correct with respect to cascade lead compensator ?
Which of the following controllers improves the transient response of a system?
Which control method is best suitable to eliminate steady state error in closed loop response?
The network formed by resistors and capacitors for modifying the rate of change of gain and the phase shift is called a compensating network. Which of the following statements are not correct ? (A) The main purpose of a compensating network is to modify the performance of op-amp ciruit over the desired frequency range (B) There are two types of op-amps : internally compensated and externally compensated (C) 741 C is an externally compensated op-amp while 709 C is internally compensated op-amp (D) The phase lag and phase lead are most commonly used compensating networks in op-amps (E) Phase lag contributes a positive phase angle and phase lead a negative phase angle Choose the most appropriate answer from the options given below : 
In the industrial control system, which one of the following methods is most commonly used in designing a system for meeting performance specifications?
A proportional integral (PI) controller results in which of the following ? 
Which among the following is offered as input to a controller?
Which one of the following types of controller is sometimes called automatic reset?
Which electrical network produces a phase lag at one frequency region and a phase lead at another frequency region?
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