15MC009 INDUSTRIAL ELECTRONICS
3 0 0 3.0
OBJECTIVES
To learn industrial electronics in applied manner with perspective of
mechatronics engineering.
To introduce the design philosophy for mechanical processes control based
on analog and digital electronics and electrical machines.
To focus on integration of the marketing, design, and manufacturing
functions of the firm in creating a new product.
PROGRAMME OUTCOMES
e) An ability to develop system design for automation applications.
f) An ability to create, select and use modern engineering and information
technology tools necessary for engineering practice.
COURSE OUTCOMES
Acquiring basic knowledge on power semiconductor device and its
characteristics.
Understanding the techniques used in inverter and converters.
Understanding the concepts of speed control of DC motor using solid state
devices.
Understanding the concepts of speed control of AC motor using solid state
devices.
Gaining the knowledge on the application of industrial electronics.
Unit I
THYRISTORS AND THEIR APPLICATIONS
Introduction – Applications – Principle of Operating of an SCR – Two- Transistor
Analogy of SCR – DIAC – TRIAC – GTO – IGBT – MCT – Basic Triggering circuits for
Thyristors –Rectifier Circuits using SCR.
9 Hours
Unit II
INVERTERS, CHOPPERS AND CONVERTERS
Commutation Circuits – Inverters – series and parallel – VSI – Choppers: Step up,
Morgan’s, Jone’s – Single phase and Three phase Converters, Fly-back convertors,
Buck-Boost convertors – Introduction to cycloconverters and ac controllers
9 Hours
Unit III
SOLID STATE CONTROL OF DC MOTORS
Introduction – Advantage of Electronic Control – D.C. Motor Speed Control –Speed
Control of DC Shunt Motors using Thyristor Technology – Overvoltage Protection of
DC Motors.
9 Hours
Unit IV
SOLID STATE CONTROL OF AC MOTORS
Introduction – A.C. Motor control – Speed control motors – Speed control A.C.
shunt motors using thyristors, Speed – torque characteristic of induction motor –
V/f control Static rotor resistance control – Slip power recovery scheme.
9 Hours
Unit V
APPLICATIONS
Electronic timers – Digital counters – Voltage regulators – Voltage doubler – Online
and offline ups – Switched mode power supply – Principle and application of
induction and dielectric heating.
9 Hours
Unit VI
SELF STUDY
Protection of power devices - Dual converters - Closed Loop control - Self control of
synchronous motor - Static stator voltage control.
Total: 45 Hours
References
1. Frank D. Petruzella, Industrial electronics, McGraw Hill, 1996.
2. Mohammed H. Rashid, Power Electronics: Circuits, Devices and Applications,
Pearson Education India, 2003.
3. Terry Baltelt, Industrial electronics, devices, systems and applications, Delmar
publishers, 1997.
4. Bhattacharya / S Chatterjee.S.K, “Industrial Electronics and Control”, Tata
McGraw-Hill, 1998.
5. James T. Humphries, Leslie P., “Industrial Electronics”, Delmar Publications,
1993.
ASSESSMENT PATTERN
Unit
Remember Understand Apply Analyze Evaluate Create Total
No.
F C P M F C P M F C P M F C P M F C P M F C P M
I 4 4 2 8 - - - 4 - - - - - - - - - - - - - - 22
II 4 4 - - 4 8 - - - - - - - - - - - - - - - - - - 20
III 2 2 - - 2 6 - - - 6 - - - - - - - - - - - - - - 18
IV 2 4 - - 2 8 4 - - 4 - - - - - - - - - - - - - - 24
V 4 4 - - 2 6 - - - - - - - - - - - - - - - - - - 16
16 18 - - 12 36 4 - - 14 - - - - - - - - - - - - - - 100
Remember
1. Mention the two factors on which the load voltage of a D.C. chopper circuit
depends.
2. What do you mean by controlled switch?
3. What are the two types of control strategies?
4. What are the methods used to control the speed of three phase induction
motor?
5. What are the advantages of slip power recovery schemes?
6. What are the methods used to control the speed of synchronous motor?
7. What are the classifications of electronic timers?
8. Mention the merits of forced commutated ac-dc converters used in dc drives.
Understand
1. What is the significance of self-controlled synchronous motor drives?
2. Differentiate between electromagnetic torque and reluctant torque?
3. Define SMPS?
4. What is the need of voltage regulators?
5. Define digital counter?
6. Mention the advantages of electronic timer over electron tube timer.
7. What is an electronic Timer? What is its use?
8. What is an induction heating?
9. What is Dielectric heating?
10. Explain two transistor analogy of SCR. Write relation between anode
current and Gate current.
Apply
1. Show the effect of resistance variations on firing & conduction angle with
waveform in RC triggering.
2. Mention some of the applications of induction heating.
3. What is the necessity of UPS and draw its block diagram.
4. Show the effect of change of duty cycle on the output voltage of chopper
with proper waveforms.
5. Write the slip equation of induction motor?
6. Construct the single phase center tapped controlled rectifier with resistive
load and its load voltage waveform
7. A single phase Full wave controlled rectifier is supplied with a voltage V=
230Sin (314t) find average output DC voltage and current if firing angle is
45degrees & load resistance is 100Ω.
8. Compare induction heating and dielectric heating.
9. Show the turn off characteristics of SCR.
10. Differentiate controlled & Uncontrolled rectifier with respect to device used,
firing circuit, phase angle control & applications.
