control systems viva voice

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Control Systems Lab Viva Questions Viva Questions: 1.What is Servo motor? 2.What are the features does Servo Motors possess? 3.What is the difference between AC servomotor and two phase induction motors? 4.Compare AC servo motor and DC servo motors? .Some App!ications where Servo motors are used? ".What is S#nchro? $.What is S#nchro pair? %.What are the app!ications of S#nchro pair? &.What is 'roportiona! Contro!!er? Advanta(es and Disadvanta(es? 1).What is *nte(ra! Contro!!er? Advanta(es and Disadvanta(es? 11.Wh# Derivative Contro!!er is not used in iso!ation !i+e 'roportiona! and *nte(ra!? 12.,or reducin( Stead# State error which t#pe of contro!!er is used? 13.What is -eset rate? 14.Which t#pe of contro!!er anticipates the error? 1./p!ain the behaviour of the s#stem when '*D contro!!er is used? 1.What is Order of the system?  Answer: 0r de r of th e s# stem is de fi ne d as the or de r of the di ff er en ti a! e uati on (overnin( the s#stem. 0rder of the s#stem can be determined from the transfer function of the s#stem. A!so the order of the s#stem he!ps in understandin ( the number of po!es of the transfer function. ,or nth order s#stem for a particu!ar transfer function contains n number of po!es. 2.What is Time response of the control system?  Answer: ime response of the contro! s#s tem is defined as the output of the c!osed !oop s#stem as a function of time. ime response of the s#stem can be obtained b# so!vin( the differentia ! euations (overnin ( the s#stem or time response of the s#stem can a!so be obtained b# transfer function of the s#stem. 3.Ho Time response of the system is divided?  Answer:ime response of the s#stem consists of two parts 1.ransient state response 2. Stead# state respo nse. r ansient response of the s# stem e/p!ains about the response of the s#stem when the input chan(es from one state to the other. Stead# state response of the s#stem shows the response as the time t5 approaches infinit# !.What are Test si"nals and their si"nificance?  Answer: he +now!ed(e of the input si(na! is reuired to predict the response of the s#stem. *n most of the s#stems input si(na!s are not +nown ahead of the time and it is a!so difficu!t to e/press the input si(na!s mathematica!!# b# simp!e euations. *n such cases determinin( the performance of the s#stem is not possib!e.est si(na!s he!ps in predictin( the performance of the s#stem as the input si(na!s which we (ive are +nown hence we can see the output response of the s# ste m for a (iv en inp ut and can understand the behavior of the contro! s#stem. he common!# used test si(na!s are impu!se5 ramp5 step si(na!s and sinusoida! si(na!s. #.What is $ole of the system?

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