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EndsemMay 20252019 patternBE Electrical

Advanced Control System (ACS) SPPU Endsem Question Paper May 2025

All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated ACS questions
Subject code
403142
Pattern
2019 pattern
Exam
Endsem
Session
May 2025
Max. marks
70
Time
2½ Hours
Semester
VII
Paper code
[6404]-105

Printed for: B.E. (Electrical)

Instructions to the candidates

  1. Solve Q.1 or Q.2, Q.3 or Q.4, Q.5 or Q.6, and Q.7 or Q.8.
  2. Figures to the right indicate full marks.
  3. Neat diagrams must be drawn wherever necessary.
  4. The use of algorithmic tables slide rules, and electronic pocket calculators is allowed.
  5. Assume suitable data if necessary.

Questions

  1. Q1

    1. a)

      This part has equations that don’t show as text. Open the PDF to read it.

      [9]
    2. b)

      Explain the various state space representations given below with examples. i) Physical Variable representation ii) Phase variable representation iii) Jordon / diagonal canonical form

      [9]

  2. Q2

    1. a)

      This part has equations that don’t show as text. Open the PDF to read it.

      [9]
    2. b)

      Define state, state variable, state vector, state equation, and output equation. Draw a state diagram. 2

      Also asked:May 2024 ·Nov 2022

      [9]

  3. Q3

    1. a)

      This part has equations that don’t show as text. Open the PDF to read it.

      [8]
    2. b)

      Explain the concept of state feedback with a proper block diagram. Write down the steps for designing a state feedback controller using a transformation matrix.

      [9]

  4. Q4

    1. a)

      What is observability ’ ? How to investigate the observability of a system using Gilbert ’ s test for. i) Distinct eigenvalues and ii) Repeated eigenvalues

      Also asked:Nov 2022

      [8]
    2. b)

      This part has equations that don’t show as text. Open the PDF to read it.

      [9]

  5. Q5

    1. a)

      State and explain Shannon ’ s Sampling theorem. How to select the sampling period?

      Also asked:Nov 2022

      [9]
    2. b)

      Explain mapping between the s-plane and z-plane.

      [9]

  6. Q6

    1. a)

      Explain the concept of Zero Order Hold and First Order Hold operations. Derive the transfer function of ZOH.

      Also asked:Nov 2022

      [9]
    2. b)

      Explain the block diagram of the digital control system. State the advantages and disadvantages of the digital control system.

      [9]

  7. Q7

    1. a)

      Define adaptive control. Explain any one scheme of adaptive control.

      Also asked:Nov 2025

      [9]
    2. b)

      Explain the various reaching laws of sliding mode control.

      [8]

  8. Q8

    1. a)

      Explain the sliding mode control technique with respect to equivalent control and chattering.

      [9]
    2. b)

      Define the optimal control problem and write down the steps to solve problem using linear quadratic regulator. 

      Also asked:Nov 2022

      [8]