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    Linear Control Systems

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    • Linear Control Systems BTEE-402 4th Sem B.Tech Nov 2016 PTU Paper

    Linear Control Systems BTEE-402 4th Sem B.Tech Nov 2016 PTU Paper

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    • Categories Linear Control Systems, Blog, Linear Control Systems PTU Paper
    • Date July 15, 2020
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    Download Previous Year PTU University Question  Paper of Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU Nov 2016 Paper

    B.Tech. (EE-2011 Batch)

    LINEAR CONTROL SYSTEMS

    Subject Code : BTEE-402          Paper ID : [ A1188]

    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

    Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU Nov 2016 Paper

                                    SECTION-A

    Q1. Write Short Notes on :

    a What do you mean by servo mechanism? Explain.
    b Write down the analogies of electrical and mechanical systems.
    c What do you mean by the term relative stability? Explain.
    d Define poles and zeros of a system.
    e Discuss (in brief) various test signals used for time domain analysis.
    f Why sinusoidal input signal alone is used for the analysis in frequency domain?
    g Define Transfer Function.
    h What do you mean by steady state error? Explain.
    i List the advantages of frequency domain analysis.
    j What is the need of compensator? Discuss.

                                          SECTION-B

    Q2. Attempt any FOUR questions.                                                                    5×4=20

    2. Discuss the field control DC motor. Also find the transfer function relating angular velocity and the input voltage applied to the field winding.

    3. Discuss the correlation between time and frequency domain specifications for second order systems.

    4. Determine the  stability  of  the  system  whose  characteristics  equation  is  given  by   s5 + s4 + 2 s3 + 2 s2 + 11s + 10 = 0

    5. Represent the following set of equations by a signal flow graph and determine the overall gain relating x5 and x1 .    x2 = 2x1 + 6x2   ; x3 = x2 + 7x4 ;       x4 = 5x3 + 3x5;      x5 = 3x4 + 8x2

    6. Sketch the Bode plot for the open loop transfer function for the unity feedback system

    G(s) = 50/(s + 2)(s +1)

                                         SECTION-C

    Q3. Attempt any TWO questions.                              2×10=20

     1.Discuss :a) Linear and non-linear systems

    b). Open and closed loop systems

    c). Time variant and time invariant systems

    d) Transfer function

    4. Sketch the root locus plot and determine the value of K if damping ratio is 707, for the system whose open loop transfer function is given by G(s) H(s) = K/s(s + 4)

    5. Design a phase lead, compensation network having open loop transfer function given below such that the system will have acceleration error coefficient =100 sec–2 and suitable phase margin for stable operation

    G(s) =K/s2 (1 + 0.05s)

    Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU APRIL 2013 Paper

    Get Started

    Section a Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU nov 2016 Paper

    What do you mean by servo mechanism?

    Servo mechanism.Explain.

    Write down the analogies of electrical and mechanical systems.

    Analogies of electrical and mechanical systems.

    What do you mean by the term relative stability? Explain.

    Explain the term relative stability

    Define poles and zeros of a system.

    Poles and zeros of a system.

    Discuss (in brief) various test signals used for time domain analysis.

    Various test signals used for time domain analysis.

    Why sinusoidal input signal alone is used for the analysis in frequency domain?

    Explain Why sinusoidal input signal alone is used for the analysis in frequency domain.

    Define Transfer Function.

    Transfer Function.

    What do you mean by steady state error? Explain.

    Explain Steady state error.

    List the advantages of frequency domain analysis.

    Advantages of frequency domain analysis.

    What is the need of compensator? Discuss.

    Need of compensator.

    Linear Control Systems 4th Sem BTEE-402 B.Tech PTU NOV  Paper 

    Section B :Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU NOV 2016 Paper              

    Discuss the field control DC motor. Also find the transfer function relating angular velocity and the input voltage applied to the field winding.

    Field control DC motor. 

    Transfer function relating angular velocity and the input voltage applied to the field winding.

     

    Discuss the correlation between time and frequency domain specifications for second order systems.

    Correlation between time and frequency domain specifications for second order systems.

     

    Determine the  stability  of  the  system  whose  characteristics  equation  is  given  by   s5 + s4 + 2 s3 + 2 s2 + 11s + 10 = 0

    Stability  of  the  system  whose  characteristics  equation  is  given  by   s5 + s4 + 2 s3 + 2 s2 + 11s + 10 = 0

     

    Represent the following set of equations by a signal flow graph and determine the overall gain relating x5 and x1 . 

    Following set of equations by a signal flow graph and determine the overall gain relating x5 and x1 .    x2 = 2x1 + 6x2   ; x3 = x2 + 7x4 ;       x4 = 5x3 + 3x5;      x5 = 3x4 + 8x2

     

    Sketch the Bode plot for the open loop transfer function for the unity feedback system

    Bode plot for the open loop transfer function for the unity feedback system

    G(s) = 50/(s + 2)(s +1)

    Linear Control Systems 4th Sem BTEE-402 B.Tech PTU NOV 2016 Paper 

    Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU NOV 2016 Paper

    Get Started

    Section c :-Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU nov 2016 Paper

    Discuss :a) Linear and non-linear systems

    a) Linear and non-linear systems

     

    Discuss b) Open and closed loop systems

    b) Open and closed loop systems

     

    Explain c) Time variant and time invariant systems

    c) Time variant and time invariant systems

     

    Discuss d) Transfer function

    d) Transfer function

     

    Sketch the root locus plot and determine the value of K if damping ratio is 707, for the system whose open loop transfer function is given by G(s) H(s) = K/s(s + 4)

    Root locus plot and determine the value of K if damping ratio is 707, for the system whose open loop transfer function is given by G(s) H(s) = K/s(s + 4)

     

    Design a phase lead, compensation network having open loop transfer function given below such that the system will have acceleration error coefficient =100 sec–2 and suitable phase margin for stable operation

    Phase lead, compensation network having open loop transfer function given below such that the system will have acceleration error coefficient =100 sec–2 and suitable phase margin for stable operation

    G(s) =K/s2 (1 + 0.05s)

    Linear Control Systems 4th Sem BTEE-402 B.Tech PTU Nov 2016 Paper 
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