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COURSE INFORMATION
Course Code: IC- 704A(ICE)
Course Name: Power Electronics
Contacts: 4
PREREQUISITES
To understand this course, the student must have idea of:


Analog Electronics Circuit Analysis
Various Electrical Instruments
SYLLABI
Introduction:
Concept of power electronics, application of power electronics, uncontrolled converters,
advantages and disadvantages of power electronics converters, power electronics
systems, power diodes, power transistors, power MOSFETS, IGBT and GTO.
PNPN devices:
Thyristors, brief description of members of Thyristor family with symbol, V-I
characteristics and applications. Two transistor model of SCR, SCR turn on methods,
switching characteristics, gate characteristics, ratings, SCR protection, series and
parallel operation, gate triggering circuits, different commutation techniques of SCR.
Phase controlled converters:
Principle of operation of single phase and three phase half wave, half controlled, full
controlled converters with R, R-L and RLE loads, effects of free wheeling diodes and
source inductance on the performance of converters. External performance parameters
of converters, techniques of power factor improvement, single phase and three phase
dual converters.
DC-DC converters:
Principle of operation, control strategies, step up choppers, types of choppers circuits
based on quadrant of operation, performance parameters, multiphase choppers and
switching mode regulators.
Inverters:
Definition, classification of inverters based on nature of input source, wave shape of
output voltage, method of commutation & connections. Principle of operation of single
phase and three phase bridge inverter with R and R-L loads, performance parameters of
inverters, methods of voltage control and harmonic reduction of inverters. Brief idea of
Resonant Pulse inverters.
AC controllers:
Principle of on-off and phase control, single phase and three phase controllers with R
and R-L loads. Principle of operation of cycloconverters, circulating and non circulating
mode of operation, single phase to single phase step up and step down cycloconverters,
three phase to single phase Cycloconverters, three phase to three phase Cycloconvetter.
Applications:
Speed control of AC and DC motors. HVDC transmission. Static circuit breaker, UPS,
static VAR controller.
Text Books:
1. Power Electronics, M.D. Singh and K.B. Khanchandani, Tata McGraw Hill. 2007
2. Power Electronics, V.R. Moorthi, Oxford, 2005
3. Power Electronics, M.H. Rashid, PHI, 3rd Edition
4. Power Electronics, P.S. Bhimra, Khanna Publishers, 3rd Edition.
Reference Books:
5. Modern Power Electronics & AC drives, B.K. Bose, Prentice Hall
6. Power Electronics, Mohan,Undeland&Riobbins, Wiley India
7. Element of power Electronics, Phillip T Krein, Oxford, 2007
8. Power Electronics systems, J.P. Agarwal, Pearson Education, 2006
9. Power Electronics, M.S. Jamal Asgha, PHI, 2007
10. Analysis of Thyristor power conditioned motor, S.K. Pillai, University Press.
11. Power Electronics : Principles and applications, J.M. Jacob, Thomson
BEYOND SYLLABI COVERAGE
IC-704(A) (ICE).I
Concepts of Basic Electronics & Electrical Components.
Lecture Plan:
Cl.
No.
Date
Topics
1&2
14/7,15/7
Concept of power electronics, application of power electronics.
3
16/7
Uncontrolled converters, advantages and disadvantages of power
electronics converters
4
17/7
Power electronics systems, power diodes, power transistors,
power MOSFETS, IGBT and GTO.
5&6
21/7,22/7
Thyristors, brief description of members of Thyristor family with
symbol, V-I characteristics and applications.
7&8
23/7
Two transistor model of SCR, SCR turn on methods, switching
characteristics, gate characteristics
9&
10
24/7,24/7
Ratings, SCR protection, series and parallel operation, gate
triggering circuits, different commutation techniques of SCR.
11 to
29/7,30/7,31/7
Principle of operation of single phase and three phase half wave,
half controlled, full controlled converters with R, R-L and RLE
loads
Remarks
Problems to be
solved & assignme
Problems to be
13
solved
14
4/8
Effects of free wheeling diodes and source inductance on the
performance of converters.
15
5/8
External performance parameters of converters, techniques of
power factor improvement, single phase and three phase dual
converters.
Problems to be
solved &
assignment
16 &
17
6/8,7/8
Principle of operation, control strategies, step up choppers.
Problems to be
solved
18 &
19
12/8,13/8
Types of choppers circuits based on quadrant of operation,
performance parameters.
20
18/8
multiphase choppers and switching mode regulators.
21 to
23
19/8,20/8,21/8
Definition, classification of inverters based on nature of input
source, wave shape of output voltage, method of commutation &
connections.
24 to
27
25/8,25/8,26/8,27/8
Principle of operation of single phase and three phase bridge
inverter with R and R-L loads.
28 to
30
28/8,1/9,8/9
performance parameters of inverters, methods of voltage control
and harmonic reduction of inverters. Brief idea of Resonant Pulse
inverters.
31 &
32
9/9,9/9
Principle of on-off and phase control, single phase and three phase
controllers with R and R-L loads.
33 &
34
10/9,11/9
Principle of operation of cycloconverters, circulating and non
circulating mode of operation, single phase to single phase step up
and step down cycloconverters.
35
&36
22/9,24/9
Three phase to single phase Cycloconverters, three phase to three
phase Cycloconvetter.
37 &
38
29/9,29/9
Speed control of AC and DC motors. HVDC transmission.
39 &
40
30/9,30/9
Static circuit breaker, UPS, static VAR controller.
Subject Teacher: Manas Sarkar
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