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Industrial Motor Drives AndControl

EP5028Presented by

DAW THAN THAN WIN

Prof: and Head (EP)Y.T.U

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This Subject Consists of

Chapter (5) Thyristors

Chapter (6) Inverters Dual Converters,

Chopper and Cycloconverters

Chapter (7) Motor Control

Chapter (8) Heating and Welding Control

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Thyristors

5.1 Introduction

5.2 Silicon Controlled Rectifier

5.3 SCR Terminology 5.4 Different Methods of Turning On of SCRs

5.5 Different Methods of Turning Off of SCRs

5.6 Different Methods of Triggering SCRCricuits

5.7 Different Methods of Forced Commutation

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5.8 Comparison of SCRs and Transistors

5.9 Thermal Characteristors of SCRs

5.10 Causes of Damage to SCRs 5.11 The SCR Crowbar or Overvoltage

Protection Circuit

5.12 Series Or Parallel Operation of SCRs

5.13 Line-Commutated Converters or

Rectifier Circuit

5.14 Triacs 5.15 Diacs

5.16 Quadracs

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Inverters Dual Converters, Chopper and

Cycloconverters

6.1 Inverters

6.2 Line-commutated inverters

6.3 Forced-commuated inverters

6.4 Voltage-source inverter

6.5 Current-source inverter

6.6 Three-phase forced-commutated bridge inverters

6.7 Functional circuit blocks of a line-commutated

converters

6.8 Dual converters

6.9 Choppers

6.10 Cycloconverter

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Motor Control

7.1 Introduction

7.2 AC Voltage controller or voltate at constant

frequency

7.3 Zero voltage switch

7.4 Synchronous tap changer

7.5 Phase control of DC motors 7.6 AC power control of a lamp dimmer

7.7 Basics of induction motor

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7.8 Choper control (ON-OFF) of DC series

motors

7.9 Advantages of AC motor control overDC motor control

7.10 Stepper motors

7.12 Servomechanism

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Heating and Welding Control

8.1 Introduction

8.2 Induction heating

8.3 Dielectric heating

8.4 Welding

8.5 Scheme for AC resistance welding

8.6 Ignitron contactor as electronic line

contactor

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Chapter 5 Thyrister

Question 1 to Question 16

Question 1 Example 5.1 & 5.6

Question 2 Problem 10 see article 5.2.2

Question 3 Problem 11 see article 5.2.3

Question 4 Problem 11 see article 5.3.12&article 5.5

Question 5 Problem 13

Answer See Example 5.3 & 5.1

Question 6 Problem 14

Answer See Example 5.3 and 5.4 Question 7 Problem 15

Answer (a) See Example 5.7.1 page 226 227

(b) See Example 5.7.2 page 228 229

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Question 13 Problem 21 (A)

Answer See Example 5.13.9 page 267

Question 14 Problem 22 (A)

Answer See Example 5.13.10 page 270

Question 15 Problem 23 (A)

Answer See Example 5.13.11 page 272 Question 16 Problem 24 (A)

Answer See Example 5.14 page 274 276

Problem 25 (A)Answer (a) See Example 5.14.3 page 278 - 279

(b) See 5.15 page 279

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Chapter 6

Inverter, Dual Converter, Chopper and

Cycloconverter

Question 17 to Question 21

Question 17 Problem 26Answer (a) See Example 6.2.1

Question 18 Problem 27 (A)

Answer (a) See Example 6.3.3 page 335 336(b) See Example 6.2

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Question 19 Problem 26

Answer (a) See Example 6.2.1

Question 20 Problem 29

Answer (a) See Example 9.3 page 365

366(b) See Example 6.5

Question 21 Problem 30

Answer (a) See Example 6.9.4 page 367 -368(b) See Example 6.6

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Chapter 7

Motor Control

Question22 to Question 27

Question 22 Problem 31

Answer (a) See Example 7.3

(b) See Example 7.3

Question 23 Problem 32

Answer See Example 7.4 page 367 -368 Question 24 Problem 33

Answer (a) See Example 7.6

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Question 25 Problem 34

Answer See Example 7.7.2

Question 26 Problem 40

Answer (a) See Example 7.5

(b) See Example 7.5.3 Question 27 Problem 36

Answer See Example 7.10

CHAPTER 8

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CHAPTER 8

HEATING & WELDING CONTROL

Question 28 to 30

Question 28 Problem 44

Answer See Example 8.2

Question 29 Answer See Example 8.1

Question 30 Problem 46

Answer See Example 8.2.2, 8.2.6, 8.2.4,8.2.3