Power Electronics - e-ope.ee

wideeyedarmenianElectronics - Devices

Nov 24, 2013 (3 years and 11 months ago)

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DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

11/24/2013

1

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

The title of e
-
course

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Structure of e
-
course

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Discipline

AAV0020 Power Electronics

For


Bachelor students

Specialty

Electrical Drives and Power Electronics

Hours / ECP

16 / 5.0




Department

Electrical Drives and Power Electronics

Authors

Valery Vodovozov and
Zoja Raud

Sites


http://learnelectronics.narod.ru/indexPower.html


(Free entrance)



https://moodle.e
-
ope.ee/course/view.php?id=2238



(Guest entrance)


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4

E
-
learning context

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

AAV0020 position in the curriculum

G

B

C

S

F

HLX0020

AME3150


MHE0061

AAR0010

AAR3310


AAV3320


AES0010


MTM0070

MSE0100

TET3070


IDK0012

YFR0012


AME3140


YMM0012

AAV3300

HHF3070

IDK0011

UTT0010

YFR0011


YGK3340


YMM3731


YMA3710


AAV0020


AAV0030


AEK3011

AAR3450


AMM3090

AME0030

TMT3360

AAR0020


AAR3320

AAR3340


AEK3041

AAR0030


AAV3340

AAR
0040


AAR
0090


AAV3333

Semester

1

Semester

2

Semester

3

Semester

4

Semester

5

Semester

6

AMM3060

Fig.
1. Flowchart of the bachalor’
s study curriculum AAAB02

11/24/2013

5

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Course target

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The goal of the course is to introduce students to the basics of power
electronic converters, motivate them to study and understand
professional concepts, and effectively develop the complex reasoning
skills, being engaged with the material they are studying, articulate
and test students ideas through experimentations and discussions. A
student shall acquire experience in:




• single
-
phase half
-
wave rectifiers.



• single
-
phase full
-
wave rectifiers.



• three
-
phase rectifiers.



• AC converters.



• DC converters.


DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Course contents

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Part 1

Rectifiers
. Common features of rectifiers. Single
-
phase half
-
wave rectifiers. Single
-
phase full
-
wave rectifiers. Single
-
phase bridge
rectifiers. Three
-
phase full
-
wave rectifiers. Three
-
phase bridge
rectifiers


Part 2 Inverters.

Common features of inverters. Voltage source
inverters. Current source inverters. Resonant inverters.


Part 3 AC/AC Converters.

AC voltage regulators. Direct frequency
converters. DC link converters


Part 4

DC/DC Converters.

DC voltage regulators. Step
-
down
choppers. Step
-
up choppers. Universal choppers


Part 5

Utility Circuits.

Snubbers and clamps. Introduction to gate
and base drivers. Basics of electromagnetic compatibility


DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Study form and learning activities

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8

Combined e
-
learning course for s
tationary

study

of
bachelor students
on electrical engineering and power electronics includes 32 hours of
lectures in auditorium, 16 hours of exercises in computer class, 16
hours of labs in laboratory, and 70 hours of individual work with e
-
learning materials. Assessment: exam or self
-
assessment using active
learning possibilities.


Course duration
-

4 mounts in Autumn semester. Weekly hours
-

4
(lectures
-

2, exercises
-

1, laboratory works
-

1)


Access conditions: knowledge base on Electrical Engineering,
Electronics and Semiconductors

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

E
-
activities

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9

Self
-
study of optional parts of the theoretical course using the
Internet resources given by teachers. Self
-
training in optional part of
exercises given in the frame of e
-
course. Self
-
preparing of optional
part of laboratory works given in e
-
manual on labs. Self
-
testing by
quizzes published on the site. Self
-
assessment using the assessment
rules of the course.

Firewall router
Ethernet switch
Student
Tutor
SQL server
HMI
PLC
Webcam
WWW
Process I
/
O
Application server
DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Optional lecture quizzing

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After each module, students are quizzed on the material using the
developed test questions. Principles of testing:




number of quizzes


7



quiz duration


5...8 min



average number of questions in a quiz


25



possible number of correct answers in a question


0...4



scoring principle


+1 for each correct answer and
-
1 for
each incorrect answer


DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Exercises (mandatory + optional)

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11

Principles of exercise arrangement:




number of lessons


7:



mandatory


5, optional


2



average number of problems per lesson


5



number of mandatory problems in a lesson


1



number of optional problems in a lesson


4



number of variants = number of students



scoring


+1 for each solved problem


DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Laboratory works (mandatory + optional)

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Each team member can get additional scores if the team implements
the optional items. The number of variants is equal to the number of
students. Students obtain additional scores by answering the
questions given at the end of the laboratory blocks. The average
number of problems to solve in a block amounts to 10. Solution of
only one problem in a lesson is mandatory, whereas the other ones
are optional. The
number of variants is equal to the number of
students. Basic activities:



off
-
site preparation



in
-
class pre
-
work talk



laboratory work implementation



in
-
class summing
-
up discussion



off
-
site report generation and defence

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Structure of the laboratory kit

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Part 1.

DM1


Single
-
phase half
-
wave diode rectifier M1


DM2


Single
-
phase midpoint diode rectifier M2


DB2


Single
-
phase bridge diode rectifier B2


DM3


Three
-
phase midpoint diode rectifier M3


DB6


Three
-
phase bridge diode rectifier B6

Part 2.
SM1


Single
-
phase half
-
wave controlled rectifier M1


SB2


Single
-
phase bridge controlled rectifier B2


SB6


Three
-
phase bridge controlled rectifier B6

Part 3.
TM1


Single
-
quadrant dc/dc converter


TB2


Multi
-
quadrant dc/dc converter

+1 score for each circuit assembled without an instructor help, for
each formula calculated on the lesson, each diagram plotted on the
lesson, for each answered question

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Assessment goals

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To evaluate:




quality of the problem statement and aims



understanding the learning objectives and methodology



solution the problems under the practical headings



rate of calculations, experimentation, and recording



practical skill and qualification obtained by labs



nature and appropriateness of student collaboration and


group working potential


DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Self
-
assessment

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Assessment rules are presented by a diagram “Assessment System on
Power Electronics” in menu “About the Discipline”. The course
consists of mandatory and optional parts. During the semester
students follow online their current rating and the expected exam
scores using the self
-
assessment Web
-
module. The mandatory part is
required for all students, whereas optional
-

for the students, who
want to increase their credits and to get best grades automatically,
without exams. By solving the additional tasks a student can raise his
credit rating and the final exams grade.


DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Course deployment

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40
-
20 %

Mandatory
part

60
-
80 %

Optional
part

Fig. 1. Deployment of the course contents

The course contents is deployed upon the two
layers:




mandatory material as a minimum


knowledge base of bachelor study in the


course (approximately 20…40 % of the


studying volume)



optional material, which involves theoretical,


practical, computing, simulation, and


assessment areas (the rest 60…80 % of the


course)

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Learner support

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Communication with learners takes place in e
-
learning environment
(
Moodle
) in lessons, and consulting times. Textbooks:


1. "Power Electronic Converters" by V. Vodovozov and R.
Jansikene

(in
English and in Estonian)

2. "Introduction to Power Electronics", available at
http://bookboon.com/int/student/electro/introduction
-
to
-
power
-
electronics

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Results

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18



e
-
learning associated with regular on
-
site assessment is


a good way into the deep understanding and the conceptual


knowledge base development



students are encouraged to work regularly throughout the


course and to play an active role in their assessment process



an active and reciprocal interaction appears between the


students and lecturers as well as among the students themselves



the assessment content focuses on essentials and emphasize


comprehension of overarching principles



the students are stimulated to obtain relevant knowledge from


preceding courses whereas teaching the new content is linked


to the students’ prior knowledge



the students use the new concepts therefore the conceptual


understanding is valued

DEPARTMENT OF ELECTRICAL DRIVES
AND POWER ELECTRONICS

Contact

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Professor Valery Vodovozov
valery.vodovozov@ttu.ee
,


room A
-
VII
-
406, tel. 620 3694;

Assistant Zoja Raud
zoja@cc.ttu.ee

room A
-
VII
-
406, tel. 620 3694


Engineer Raul Aarpuu (computer class), room 409, tel. 620 3697