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)

Attachment: click here

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

Attachment: click here