GTU Digital Control System - June 2015 Exam Question Paper

GTU Electrical and Electronic Engineering (Semester 6)
Digital Control System
June 2015

Total marks: --
Total time: --

INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1 (a) Explain Open Loop & Close Loop Control system with Block diagram.

7 M

1 (b) Comparison between digital Control System & analog control system with block diagram.

7 M

2 (a) What is Sampling Frequency ?Explain sampling & Quantization effect in detail.

7 M

Answer any two question from Q2 (b) or Q2 (c)

2 (b) Explain the process of signal Conversion & Coding.

7 M

2 (c) Explain sample & Hold Circuit.

7 M

Answer any two question from Q3 (a), (b) or Q3 (c), (d)

3 (a) Explain the design Specification & configuration of basic digital control system.

7 M

3 (b) Explain BIBO stability in detail.

7 M

3 (c) Explain Properties of Z-transform.

7 M

3 (d) Explain Aliasing effect with wave form.

7 M

Answer any two question from Q4 (a), (b) or Q4 (c), (d)

4 (a) Explain the reconstruction of analog signal.

7 M

4 (b) Write a Short note on Digital Temperature Control System.

7 M

4 (c) Write a Short note on Digital Position control system.

7 M

4 (d) Compare Proportional -Integral controller & Proportional Controller.

7 M

Answer any two question from Q5 (a), (b) or Q5 (c), (d)

5 (a) Design Phase Lead Compensator using frequency response plot.

7 M

5 (b) Explain the effect of high Gain on the control system. Which are the limiting factors for High Gain?

7 M

5 (c) Explain the specification for z-plan in control system design.

7 M

5 (d) Design Phase Lag compensator using root locus plot.

7 M

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