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

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

Rajee > 27-09-2015, 12:36 PM

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)

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
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
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
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
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