SARVAJANIK UNIVERSITY
SarvajanikCollege of Engineering and Technology
Bachelor of Technology
B.Tech. Semester V
Subject Name: Power Electronics Subject Code: BTEL13503
Type of course: Professional Core Course
Prerequisite: Fundamental knowledge of Electrical Engineering and Analog Electronics
Rationale: The power electronic devices and converters employing power electronics
devices are now widely used in domestic applications as well as in industrial
applications like Electrical Drives, Power Systems, Renewable Energy based
power generation, heating applications etc. The course is aimed to provide
exposure about the commonly used power electronic devices and the power
electronic converters.
Teaching and Examination Scheme:
TEACHING SCHEME Theory Marks Practical Marks Total
L T P C TEE CA1 CA2 TEP CA3
150
3 1 2 5 60 25 15 30 20
CA1: Continuous Assessment (assignments/projects/open book tests/closed book tests CA2:
Sincerity in attending classes/class tests/ timely submissions of assignments/self-learning
attitude/solving advanced problems TEE: Term End Examination TEP: Term End Practical Exam
(Performance and viva on practical skills learned in course) CA3: Regular submission of Lab
work/Quality of work submitted/Active participation in lab sessions/viva on practical skills learned
in course
Content:
Sr. Teaching Module
Topics
No. Hrs. Weightage
1. Power switching devices 08 15
Diode, TRIAC, Thyristor, MOSFET, IGBT; Static
characteristics of these devices; Operation of power devices
as switches and switching losses, Single-quadrant switches,
two-quadrant and bidirectional switches; Firing circuit for
thyristors; Gate drive circuits for MOSFET and IGBT.
2. DC-DC converters 12 20
Switching Voltage Regulators, Linear voltage regulator,
Concept of switching voltage regulators and advantages,
Operation and Principle of Basic DC-DC converter
topologies like Buck, Boost and Buck-Boost converter,
Various control techniques for output voltage control,
Mathematical analysis for these converters for steady state,
Concept of CCM and DCM and factors affecting them,
Closed loop control for voltage regulation, Isolated
PCC: Professional Core Course
W.e.f. AY 2021-22
SARVAJANIK UNIVERSITY
SarvajanikCollege of Engineering and Technology
Bachelor of Technology
converters: Forward converter and Flyback converter; Multi-
quadrant operation of DC-DC converters; Applications
3. DC-AC converters – Inverters 12 20
Classification of Inverters, Half-bridge and full-bridge
single-phase voltage source inverter, switch states and
instantaneous output voltage, square wave operation of the
inverter, concept of average voltage over a switching cycle,
bipolar sinusoidal modulation and unipolar sinusoidal
modulation, modulation index and output voltage, three-
phase sinusoidal modulation, Three phase bridge inverter –
180◦ and 120◦ conduction mode, SPWM control, Third
harmonic injection, SVPWM, Output voltage and
frequency control, Harmonic spectrum, Harmonics and its
effects, Applications
4. AC-DC Converters 12 20
Concept of phase control using half-wave single phase ac-dc
converter, Single phase and three phase half wave and full
wave, 1-phase and 3- phase half controlled and fully
controlled converters, Analysis with R & RL load,
Performance parameters for converters, Operation in
continuous and dis-continuous mode, Reactive power
considerations, Operation in conversion and inversion mode,
Effect of source inductance, Power factor improvement
techniques, Dual Converters, Applications
5. AC Voltage Controller 8 15
Single-phase AC voltage controller, Principle of Phase
Control, On-off Control, Mathematical analysis related to
single-phase AC voltage controller, Three-phase AC voltage
controller configurations: Operations, Waveforms, Analysis
6. Miscellaneous 6 10
Frequency Control: Introduction to cycloconverter and matrix
converter; basic power circuit and their operating principle.
Datasheet interpretation, Ratings of the devices and Selection
of switches.
Suggested Specification table with Marks (Theory/Practical):
% Distribution of Marks
R Level U Level A Level N Level E Level C Level
20 30 30 10 10 0
PCC: Professional Core Course
W.e.f. AY 2021-22
SARVAJANIK UNIVERSITY
SarvajanikCollege of Engineering and Technology
Bachelor of Technology
Legends: R: Remembrance, U: Understanding; A: Application, N: Analyze, E: Evaluate C: Create
and above Levels (Revised Bloom’s Taxonomy)
Note: This specification table shall be treated as a general guideline for students andteachers. The
actual distribution of marks in the question paper may vary slightly from above table.
Course Outcome:
Sr. No. CO Statement Marks %
After learning this subject, students will be able to weightage
CO-1 To understand the differences between signal level and power level 10
devices.
CO-2 Acquire knowledge about fundamental concepts and techniques used 30
in power electronics.
CO-3 To analyse the operation of power converters. 30
CO-4 Develop skills to build, and troubleshoot power electronics circuits. 10
CO-5 Develop ability to understand the use of power converters in commercial 20
and industrial applications.
LIST OF PRACTICALS: (Minimum ------ performed.)
1. To obtain Static and dynamic characteristic of SCR, MOSFET and IGBT
2. To Perform R, RC and UJT based triggering circuit of SCR
3. To analyse the performance of single phase and three-phase full bridge thyristor rectifier for
R and RL load.
4. To perform an experiment of DC-DC converter (Buck/Boost/Buck-Boost converter).
5. To perform single-phase bridge inverter with R and R-L load.
6. To perform three-phase bridge inverter
a. 120° mode of conduction
b. 180° mode of conduction
7. To perform SCR based single-phase ac voltage controller.
8. To perform SCR based three-phase ac voltage controller.
9. Develop a Simulink model of a step-down chopper to study the effect of inductance,
switching frequency, duty cycle, load current on the output voltage
10. To simulate a closed-loop control of DC-DC converter (Buck/Boost/Buck-Boost converter).
11. To simulate single phase and three phase inverters for R and RL load.
12. To Study of harmonic spectrum of output voltage for unipolar and bipolar PWM controlled
half-bridge and full bridge converter.
13. To simulate single phase and three phase-controlled converters for R and RL load.
14. To simulate single phase and three phase AC voltage controller.
PCC: Professional Core Course
W.e.f. AY 2021-22
SARVAJANIK UNIVERSITY
SarvajanikCollege of Engineering and Technology
Bachelor of Technology
15. To study the performance of single-phase fully controlled and semi-controlled converter for
R and R-L load
16. To study the performance of three-phase fully controlled and semi-controlled converter for
R and R-L load
Reference Text Books:
1. M. H. Rashid, “Power electronics: circuits, devices, and applications”, Pearson Education
India, 2009.
2. N. Mohan, T. M. Undeland, W.M. Robbins, “Power Electronics: Converters, Applications
and Design”, Wiley India Edition, 2007.
3. R. W. Erickson and D. Maksimovic, “Fundamentals of Power Electronics”, Springer
Science & Business Media, 2007.
4. P.S. Bimbhra, “Power Electronics”, Khanna Publishers, New Delhi, 2012..
5. L. Umanand, “Power Electronics: Essentials and Applications”, Wiley India, 2009.
Major Equipment:
Power semiconductor devices, power electronic converter kits, CRO/DSO, choke coil, load bank,
voltage and current probes, Simulation software like Scilab, MATLAB, PSIM etc. along with
necessary toolbox.
PCC: Professional Core Course
W.e.f. AY 2021-22
