Power electronics and electric drive

Nurlanova Meruert Nurlanovna

The instructor profile

Description: The discipline presents the principles of electric energy conversion: rectification, inversion and frequency conversion. The main schemes of converter devices are described. The principles of building control systems for various power converter devices in power supply systems are considered, as well as issues of the principles of building DC and AC electric drives, the formation of skills in performing static and dynamic calculations of the power part of an electric drive in power supply systems.

Amount of credits: 6

Course Workload:

Types of classes hours
Lectures 30
Practical works 15
Laboratory works 15
SAWTG (Student Autonomous Work under Teacher Guidance) 30
SAW (Student autonomous work) 90
Form of final control Exam
Final assessment method written exam

Component: Component by selection

Cycle: Profiling disciplines

Goal
  • To form the student's competencies in the field of power electronics, subsequent professional disciplines related to electric drive and automation of technological processes and productions
Objective
  • Theoretical and practical training of future bachelors for the design, testing and operation of power electronics and electric drive devices
Learning outcome: knowledge and understanding
  • Classification, purpose, basic circuit design solutions of power electronics and electric drive devices
Learning outcome: applying knowledge and understanding
  • Be able to use the acquired knowledge in solving practical problems in the design, testing and operation of power electronics and electric drive devices
Learning outcome: formation of judgments
  • Be able to set and solve the simplest tasks of modeling power electronic devices and electric drives
Learning outcome: communicative abilities
  • Interact effectively and confidently with others in various situations
Learning outcome: learning skills or learning abilities
  • Have the ability to organize workplaces, their technical equipment, and the placement of technological equipment in accordance with production technology, safety standards and industrial sanitation, fire safety, and occupational safety
Teaching methods

In terms of credit technology, classes should be conducted primarily in active and creative forms. Among the effective pedagogical techniques and technologies that contribute to the involvement of students in the search and management of knowledge, and the acquisition of experience in solving problems independently, it is necessary to highlight: - technology of problem-based and project-based learning; - technologies of educational and research activities; - Communication technologies (discussion, press conference, brainstorming, educational debates and other active forms and methods); -case study method (situation analysis); - game technologies in which students participate in business, role-playing, and simulation games; - information and communication technologies (including distance education).

Assessment of the student's knowledge

Teacher oversees various tasks related to ongoing assessment and determines students' current performance twice during each academic period. Ratings 1 and 2 are formulated based on the outcomes of this ongoing assessment. The student's learning achievements are assessed using a 100-point scale, and the final grades P1 and P2 are calculated as the average of their ongoing performance evaluations. The teacher evaluates the student's work throughout the academic period in alignment with the assignment submission schedule for the discipline. The assessment system may incorporate a mix of written and oral, group and individual formats.

Period Type of task Total
1  rating Report 0-100
Laboratory work No. 1
Оral interview
Problem solving
Laboratory work No. 2
Оral interview
Laboratory work No. 3
Problem solving
Оral interview
Laboratory work No. 4
Border control 1
Lecture notes
2  rating Problem solving 0-100
Laboratory work No. 5
Оral interview
Laboratory work No. 6
Оral interview
Laboratory work No. 7
Оral interview
Laboratory work No. 8
Problem solving
Border control 2
Lecture notes
Total control Exam 0-100
The evaluating policy of learning outcomes by work type
Type of task 90-100 70-89 50-69 0-49
Excellent Good Satisfactory Unsatisfactory
Work in practical and laboratory classes completed the work in full, observing the required sequence of actions; accompanies the answer with new examples, is able to apply knowledge in a new situation one mistake or no more than two shortcomings were made, the student can correct them independently or with a little help from the teacher; the answer was given without applying knowledge in a new situation did not complete the work in full, but not less than 50% of the volume of practical work, which allows obtaining correct results and conclusions; errors were made during the work completed the work in full, observing the required sequence of actions; accompanies the answer with new examples, is able to apply knowledge in a new situation
Assignments in test form for midterm assessment 100-90% correct answers 89-70% correct answers 69-50% correct answers 100-90% correct answers
Interview on control questions has theoretical knowledge, terminology, and basic laws of this course; logically and consistently explains the essence of phenomena and processes; gives examples, demonstrates fluency in monologue speech and the ability to quickly respond to clarifying questions. has theoretical knowledge, terminology, and basic laws of this course; logically and consistently explains the essence of phenomena and processes; gives examples, demonstrates free command of monologue, but at the same time makes minor mistakes, which he corrects independently or with minor correction from the teacher. Theoretical knowledge is shallow, the ability to draw reasoned conclusions and give examples is insufficient, in monologue speech, terminology, shows the logic and consistency of the narrative at an insufficient level, makes mistakes that can be corrected only with the correction of the teacher. has theoretical knowledge, terminology, and basic laws of this course; logically and consistently explains the essence of phenomena and processes; gives examples, demonstrates fluency in monologue speech and the ability to quickly respond to clarifying questions.
Evaluation form

The student's final grade in the course is calculated on a 100 point grading scale, it includes:

  • 40% of the examination result;
  • 60% of current control result.

The final grade is calculated by the formula:

FG = 0,6 MT1+MT2 +0,4E
2

 

Where Midterm 1, Midterm 2are digital equivalents of the grades of Midterm 1 and 2;

E is a digital equivalent of the exam grade.

Final alphabetical grade and its equivalent in points:

The letter grading system for students' academic achievements, corresponding to the numerical equivalent on a four-point scale:

Alphabetical grade Numerical value Points (%) Traditional grade
A 4.0 95-100 Excellent
A- 3.67 90-94
B+ 3.33 85-89 Good
B 3.0 80-84
B- 2.67 75-79
C+ 2.33 70-74
C 2.0 65-69 Satisfactory
C- 1.67 60-64
D+ 1.33 55-59
D 1.0 50-54
FX 0.5 25-49 Unsatisfactory
F 0 0-24
Topics of lectures
  • Single-phase rectifiers
  • Controlled rectifiers
  • Three-phase rectifiers
  • Three-phase bridge rectifiers
  • Current inverters driven by a network
  • Three-phase current inverter
  • Ways to control converters
  • Autonomous inverters
  • Autonomous current inverters
  • The concept of an automated electric drive
  • Mechanical characteristics of electric drives
  • Regulation of the angular velocity of electric drives
  • Transient operating modes of the electric drive Transients of a DC electric drive with motors of various modes of excitation in the modes of dynamic, regenerative braking and counter-actuation braking
  • Open circuit automatic control Main and auxiliary circuits
  • Closed-circuit electric drive control systems for automatic control (starting and braking) of asynchronous electric motors powered by mains
  • Software and adaptive control of electric drives of production mechanisms Software and adaptive control of electric drives of production mechanisms
Key reading
  • 1. Волков Д.В. Силовая электроника. Силовые преобразователи в электроприводе : учебное пособие / Волков Д.В.. — Москва : Ай Пи Ар Медиа, 2024. — 93 c. — ISBN 978-5-4497-3379-5. 2. Белоус А.И. Полупроводниковая силовая электроника / Белоус А.И., Ефименко С.А., Турцевич А.С.. — Москва : Техносфера, 2013. — 228 c. — ISBN 978-5-94836-367-7 3.Родыгин А.В. Силовая электроника : учебное пособие / Родыгин А.В.. — Новосибирск : Новосибирский государственный технический университет, 2017. — 72 c 4. Чиликин М.Г., Сандлер А.С. Общий курс электропривода. Учебник для вузов. – М.: Энергоатомиздат, 1981.-576 с. 5. Вишневский С.Н. Характеристики двигателей в электроприводе. - М.: Энергия, 1977.- 416 с. 6. Москаленко В.В. Автоматизированный электропривод. - М.: Академия, 2007. – 416 с.
Further reading
  • 1. Юдович, В.И. Частотно-регулируемый электропривод: Учебное пособие. — М.: Издательство МГТУ им. Н.Э. Баумана, 2018. — 320 с. 2. Иванов, И.И., Петров, А.В. Электротехника и основы электроники: Учебник для вузов. — М.: Издательство Юрайт, 2019. — 480 с. 3. Лепанов, М.Г. Силовая электроника. Учебник и практикум для академического бакалавриата. — М.: Издательство Лань, 2021. — 400 с. 4. Бабакин, В.И. Автоматизированный электропривод типовых производственных механизмов и технологических комплексов. — М.: Издательство МГТУ им. Н.Э. Баумана, 2017. — 320 с. 5. Ключев, В.И. Электропривод и автоматизация общепромышленных механизмов. — М.: Энергия, 2020. — 480 с. 6. Невраев, В.Ю., Петелин, Д.П. Системы автоматизированного электропривода переменного тока. — М.: Энергия, 2021. — 350 с.