EE2253 Control Systems (Units 1 , 2 and 3) Scanned Lecture Notes - Thangasamy Edition

  • 11Feb
  • 2015
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    Anna University , Chennai
    Department of B.E-Electrical and Electronics Engg
    Fourth Semester
    EE2253 Control Systems
    Units 1 , 2 and 3
    Scanned Lecture Notes
    (Regulation 2008) 

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    Syllabus : 
    UNIT 1 : INTRODUCTION

    UNIT 2 : TIME RESPONSE ANALYSIS

    UNIT 3 : FREQUENCY RESPONSE

    Content :
    CONTROL SYSTEM

    Classification of control system
    1. Depends upon the structure
    2. Depends upon the mathematical model
    3. Depends upon the response
    4. Depending upon the hardware components used
    5. Depending upon the data type
    6. Depending upon the method control used
    7. Depending upon the no of variables
    Open loop system
    Closed loop system
    Comparison of open and closed loop
    Modelling of the system
    1. State space model
    2. Impulse response model
    Transfer function
    Properties of transfer function
    Poles of a function
    Zero’s of the function
    Characteristics equation of the system
    Order of the function
    Electrical analogy of mechanical system
    Classification
    1. Mechanical transulation system
    2. Mechanical rotational system
    Mechanical translation system
    a. Mass
    b. Spring
    c. Dash pot
    Concept of force
    Transulation system
    Mechanical rotational system
    Electrical analogy of mechanical translational system
    Force voltage analogy
    Block diagram representation
    Properties
    Block diagram reduction algebra
    SIGNAL FLOW GRAPH
    Path
    Input node
    Path gain
    Signal flow graph reduction
    Mason’s gain formula
    Procedure
    Synchros
    Sychro transmitter
    Construction
    Major parts
    1. Stator
    2. Rotor
    Synchro’s control transformer
    DC servomotor 
    Permanent magnet motor
    Advantages
    Disadvantages
    Electro-magnetic field motor
    AC servomotor
    Working principle

    UNIT-2

    TIME RESPONSE ANALYSIS
    Transient steady state
    Closed loop transfer function
    Test signal
    1. Step signal
    2. Ramp signal
    3. Parabolic signal
    4. Impulse signal
    Order of the system
    Types of the system
    Time response of the second order system
    Time domain specification
    1. Delay time
    2. Rise time
    3. Peak time
    4. Peak over shoot
    5. Setting time
    Type number of control system
    Steady state error
    Generalized error co-eficient
    Evaluation of generalized error co-efficient
    P , PI , PID modes of feed back controller
    Error compensation
    Effects of PI controller
    Loop transfer function
    Effects of PID controller

    UNIT-3
    FREQUENCY RESPONSE
    Advantages of frequency response method
    Graphical methods
    Bode plot
    Nyquist plot
    Nichols chart
    Frequency response
    Frequency domain specification
    1. Resonant peak
    2. Resonant frequency
    3. Band width
    4. Cut off rate
    5. Gain margin
    6. Phase margin
    Basic factors
    1. Consant gain
    2. Integral factor
    3. Derivative factor
    4. First order factor in denominator
    Steps for plotting the magnitude plot
    Procedure for phase plot of bode plot
    Typical sketch of polar plots

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