Course Syllabus for

Power Electronics - Devices and Converters
Kraftelektronik - komponenter och omvandlare

EIEN55F, 7.5 credits

Valid from: Spring 2023
Decided by: Maria Sandsten
Date of establishment: 2022-12-07

General Information

Division: Industrial Electrical Engineering and Automation
Course type: Course given jointly for second and third cycle
The course is also given at second-cycle level with course code: EIEN55
Teaching languages: English, Swedish

Aim

The purpose of the course is to provide knowledge about dimensioning and use of modern semiconductor components and related passive components in their applications in power electronic converters. The learning includes mechanical, electrical and thermal dimensioning of semiconductor components as well as inductors and capacitors, including modeling of their service life given a certain thermal and electrical cycling. Furthermore, the course provides knowledge of principles for modulation, current and voltage control for different converter types. The course provides an understanding of applications of power electronic converters such as switched power supplies, motor drive systems, solar cell converters, electric vehicle chargers etc. Furthermore, power grid applications such as "Unified Power Flow Controllers" (UPFC), active power filters, high voltage direct current (HVDC) etc. are studied. Learning consists of lectures, arithmetic exercises, simulation work and lab work where simulations and laboratory work are closely linked.

Goals

Knowledge and Understanding

For a passing grade the doctoral student must

Competences and Skills

For a passing grade the doctoral student must

Judgement and Approach

For a passing grade the doctoral student must

Course Contents

Lectures and arithmetic exercises Components: Diodes, transistors (BJT, IGBT, MOSFET), materials (silicon, silicon carbide), inductors, capacitors, sensors (current, voltage). Function, mechanical and thermal design, aging. Circuits: Drive and protection circuits. Various bridges such as 1Q, 2Q and 3-phase 2- and multi-level converters. Parasitic components, load currents and earth currents. Modulation and control: Carrier modulation, sampled current control, tolerance band control of current, voltage control. Applications: Switching power supplies, motor drive systems for DC and AC motors, solar cell converters, electric vehicle chargers, "Unified Power Flow Controllers" (UPFC), active power filters, high voltage direct current (HVDC). Simulation tasks and laboratory work Primary switched power supplies. 4-quadrant converter. Modulation with fixed and random frequency. Feedback current control. 3-phase voltage generation for 230 V 3-phase. These labs are prepared through simulation work, which is reported as a homework before the lab. After the laboratory, a report is written where simulations and measurements are compared.

Course Literature

Alaküla M, Karlsson P: Kompendium i Power Electronics – Devices, Circuits, Control and Applications. IEA, LTH.

Instruction Details

Types of instruction: Lectures, laboratory exercises, exercises

Examination Details

Examination formats: Written exam, written report, written assignments. Approved laborations and simulations that are reported continuously. Written exam (5 h) with both problem solving and theoretical questions.
Grading scale: Failed, pass
Examiner: Professor Mats Alaküla

Admission Details

Assumed prior knowledge: ESSF01 Analogue Circuits, ESS030, ESSF20 Physics of Devices, ESSF15 Electrical Engineering (EE) or MIE012, EIEF35 Electrical Engineering, basic course (ME) and FRT010, FRTF05 Automatic Control, Basic Course.

Further Information

The Course overlaps following course /s: EIE023, EIE015, EIEN25. The course may not be combined with ETEF10 Power Electronics

Course Occasion Information

Start date: 2024-01-15. Start date is approximate.
End date: 2024-03-17
Course pace: Full time

Application Information

Apply by email to course coordinator

Contact and Other Information

Course coordinator: Mats Alaküla <mats.alakula@iea.lth.se>
Web page: http://www.iea.lth.se/kel/


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