Download PTU B.Tech 2020 March EE 6th Sem Non Linear And Digital Control Systems Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech EE (Electrical Engineering) 2020 March 6th Sem Non Linear And Digital Control Systems Previous Question Paper

1 | M-71149 (S2)-1966
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(EE/Electrical & Electronics Engg.) (2012 Onwards)
B.Tech. (Electronics & Electrical Engg.)
(2012 to 2017) (Sem.?6)
NON-LINEAR AND DIGITAL CONTROL SYSTEMS
Subject Code : BTEE-603
M.Code : 71149
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION?A
1. Answer briefly :
a) What is the significance of singular points?
b) Why is transfer function of any system important?
c) What is the significance of dead zone?
d) What do you understand from stability of the system?
e) What is the difference between laplace transform and Z transform?
f) Is there any loss in observability due to sampling?
g) What is state variable model?
h) What is the use of variable gradient method?
i) Differentiate coulomb friction and backlash.
j) Where can be the jury test of stability applied?

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1 | M-71149 (S2)-1966
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(EE/Electrical & Electronics Engg.) (2012 Onwards)
B.Tech. (Electronics & Electrical Engg.)
(2012 to 2017) (Sem.?6)
NON-LINEAR AND DIGITAL CONTROL SYSTEMS
Subject Code : BTEE-603
M.Code : 71149
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION?A
1. Answer briefly :
a) What is the significance of singular points?
b) Why is transfer function of any system important?
c) What is the significance of dead zone?
d) What do you understand from stability of the system?
e) What is the difference between laplace transform and Z transform?
f) Is there any loss in observability due to sampling?
g) What is state variable model?
h) What is the use of variable gradient method?
i) Differentiate coulomb friction and backlash.
j) Where can be the jury test of stability applied?

2 | M-71149 (S2)-1966
SECTION-B
2. Produce a state model for following differential equation :
6 10 5 5
y y y y u u ? ? ? ? ?
? ? ? ? ? ? ?

3. What is the structure of state feedback control system? What is the effect of state
feedback on controllability and observability? What system is neither observable nor
controllable?
4. Explain the Jury test of stability. How it helps to find stability of given system? Explain
with suitable example.
5. How the reconstruction of sampled signal is done? Differentiate zero order and first order
hold.
6. What is the use of lyapunov functions to estimate transients? Comment upon the stability
of linear and non linear systems.

SECTION-C
7. What is the role of laplace transform and Z transform in sampling process? How the state
variable formulation of discrete time system is carried out explain with suitable example.
8. What do you understand from describing functions? What analysis does they provide
about the system stability? What is the significance of saturation and dead zone?
9. Explain in detail the phase portrait of second order non linear system? What is the need
of phase plane analysis?





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