Department of Computer Science and Engineering

B.Tech. II (CO) Semester - 4

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EE212 : CONTROL SYSTEM (IS-II)

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COURSE OBJECTIVES
  • To teach the fundamental concepts of Control systems and mathematical modelling of the system.
  • To teach the concept of time response and frequency response of the system.
  • To teach the basics of stability analysis of the system.
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    COURSE OUTCOMES
    After successful completion of this course, student will be able to
    • To understand and differentiate the basics of linear time-invariant control system.
    • To understand and analyze feedback characteristics of linear control system to reduce the disturbance.
    • To understand and analyze time response of first and second order control systems for different standard test signals.
    • To perform frequency domain analysis of linear control system using bode plot and nyquist stability criterion
    COURSE CONTENT
    BASIC CONCEPTS

    (02 Hours)

    Scope Of Control, Parts Of a Control system, Multidisciplinary Nature, Notion of Feedback, Open and Closed Loop systems.

    MODELLING AND REPRESANTATION OF CONTROL SYSTEM

    (05 Hours)

    Ordinary Differential Equations, Transfer Functions, Block Diagrams, Signal Flow Graphs, State-Space Representation.

    LINEAR SYSTEM REPRESENTATION

    (05 Hours)

    Transfer Function and Its Interpretation in terms of Impulse and Frequency Responses, Block Diagram and Signal Flow Graph Manipulations.
    PERFOMANCE AND STABILITY

    (05 Hours)

    Concept and Definition, Poles, Time Domain Response, Damping Coefficient, Natural Frequency, Overshoot, Setting Time, Rise Time, Second order Systems, Characteristics Equations and Roots, Routh-Hurwitz Criteria.
    FREQUENCY DOMAIN TECHNIQUES

    (06 Hours)

    Bandwidth and Cut-Off Rate, Link Between Time and Frequency Domain Response Feature, Stability and Relative Stability, Root-Locus Methods, Frequency Responses, Bode-Plots, Gain-Margin and Phase Margin, Nyquist Rate.

    COMPENSATOR CONCEPTS

    (05 Hours)

    Proportional, PI and PID Controllers, Lead-Lag Compensators.
    STATE-SPACE CONCEPTS

    (05 Hours)

    Controllability, Observabillity, Poles Placement Result.
    INTRODUCTION TO FUZZY CONTROL

    (04 Hours)

    Fuzzy Sets and Linguistics Variables, The Fuzzy Control Scheme, Fuzzifications And Defuzzification Methods, Examples, Comparison Between Conventional and Fuzzy Control.
    SAMPLED-DATA SYSTEMS

    (05 Hours)

    Necessity Of Sample And Hold Operations For Computer Control Sampling Theorems, Z-transform, Stability and Response of Sampled-Data Systems, Controller Design, Special Feature of Digital Control Systems.

    (Total Contact Time: 42 Hours)
    PRACTICALS
    1. Study of Synchro Transmitter and Receiver.
    2. Study of control transformer.
    3. To obtain characteristic of Magnetic Amplifier.
    4. To obtain transfer function of Servo Motor.
    5. To obtain characteristics of Phase lead compensators.
    6. To obtain characteristics of Phase lag compensators.
    7. To obtain transfer function and to design PID controller for an oven.
    8. To obtain time domain parameters of a second order electromechanical system using MATLAB Simulink.
    9. To design a PID controller for a DC motor using MATLAB Simulink.
    BOOKS RECOMMENDED
    1. K. Ogata : "Modern control system engineering" ,PHI ,4/E,2003 (UNIT I-IV).
    2. Nagrath & Gopal : "Control system engineering", New Age International Ltd, 3/E,2002.
    3. B.C.Kuo :" Automatic control system", Prentice Hall of India, 7/E, 2002.
    4. Gopal M.:"Control System", Tata McGraw-Hill, 1st Ed., 1997.
    5. Dorf Richard and Bishop Robert :"Modern Control System Engineering", Pearson Education, 8th Ed., 2004.
    6. Bandyopadhyan M. N. :"Control Engineering: Theory & Practices", PHI, 4th Ed., Printing 2006.
    7. Nise N. S ,"Control System Engineering"  Pub: John willey & sons, 4/E, 2004.