EE2253/IC6501 Control System Hand Written Lecture Notes - Lavanya Edition

  • 27Sep
  • 2015
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    Control System Handwritten Premium Lecture Notes, Prepared by Lavanya. Specially for Electrical And Electronics Engineering Candidates. Syllabus Covered based on Anna University For Fourth Semester And can Also Used For Fifth Semester.


    CONTENT:
    UNIT-1 SYSTEM AND THEIR REPRESENTATION (Pages: 49)
    UNIT-2 TIME RESPONSE (Pages: 44)
    UNIT-3 FREQUENCY RESPONSE (Pages: 57)
    UNIT-4 STABILITY OF CONTROL SYSTEM (Pages: 53)
    UNIT-5 COMPENSATOR DESIGN (Pages: 34)

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    UNIT-1
    SYSTEM AND THEIR REPRESENTATION
    Transfer function
    Plant
    Process
    System
    Control system
    Classification of control system
    1. Depends upon the structure
    2. Depends upon the mathematical model
    3. Depends upon the response time variant
    4. Depends upon the hardware components
    5. Depends upon the data type
    6. Depends upon method of control used
    7. Depends upon number of variable
    Open loop
    Closed loop system
    Workflow for a closed loop system
    Comparision of open and closed loop system
    Modelling of system
    Types
    1. State phase model
    2. Transfer function
    3. Impulse response method
    Transfer function
    Properties of transfer function
    Poles of the function
    Zeros of the function
    Characteristics equation of the function
    Order of the system
    Electrical analogy of the mechanical system
    Force balance equation of the 3 elements translation system
    Dash pot
    Mechanical rotational system
    Problems
    Force current analogy
    Rotational system
    Torque-voltage analogy
    Electrical system
    Block diagram representation
    Properties of block diagram
    Signal flow graph
    Transfer function of a armature controller
    Mason’s gain formula
    Synchros
    Synchro transmitter
    Advantages
    Disadvantages
    DC servomotor
    Permanent magnet motor
    Electromagnetic field motor
    1. Armature controlled
    2. Field controlled
    Armature controlled Dc servomotor
    AC servomotor

    UNIT-2
    TIME RESPONSE
    Transient
    Steady state
    Closed loop transfer function
    Time response of the control system
    Test signal or input signal
    Step signal
    Ramp signal
    Parabolic signal
    Impulse signal
    Order of the system
    Type of the system
    Time domain specification
    Types number of control system
    Steady state error
    Static error constant
    Generalized error coefficient
    P, PI and PIO modes of feedback control error compensation
    Effects of PI controller
    Effects of proportional derivative controller
    Effects of PIO controller

    UNIT-3
    FREQUENCY RESPONSE
    Advantages of frequency response method
    Graphical methods
    Bode plot
    Nyquist plot
    Nichol’s chart
    Frequency response
    Frequency domain specification
    1. Resonant peak
    2. Resonant frequency
    3. Bandwidth
    4. Cut off rate
    5. Gain margin
    6. Phase margin
    Corner frequency
    Bode plot
    Problems based on bode plot
    Block diagram reduction techniques
    Nichol’s chart

    UNIT-4
    STABILITY OF CONTROL SYSTEM
    Stability
    BIBO stability
    Routh Hurwitz criterion
    Problems
    Root locus
    Problems on root locus
    Nyquist criterion

    UNIT-5
    COMPENSATOR DESIGN
    Time domain
    Steady state error constant
    Compensator
    Types
    1. Series compensation
    2. Parallel compensation
    Electrical compensator
    1. Lag compensator
    2. Led compensator
    3. Lag led compensator

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