EIEN55F

Aktiv

Power Electronics - Devices and Converters

7.5

Gemensam kurs, avancerad nivå och forskarnivå

7391 (Department of Biomedical Engineering / Industrial Electrical Engineering and Automation)

2022-12-07

Maria Sandsten

English
Swedish

Varje vårtermin

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.

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.

be able to individually and in writing:

describe the function and dimensioning properties of active and passive power electronic components
analyze and understand power electronic circuits
analyze modulation methods (carrier and tolerance bands) for power electronic converters

individually be able to:

make basic dimensioning of active and passive power electronic components
design power electronic circuits of lower complexity
propose modulation and control methods for power electronic circuits of lower complexity

individually be able to

assess the suitability of power electronics solutions where non-power electronics alternatives exist with regard to the physical and electromagnetic environmental impact as well as energy efficiency.

Föreläsningar

Laborationer

övningar

Skriftlig tentamen

Skriftlig rapport

Inlämningsuppgifter

Approved laborations and simulations that are reported continuously. Written exam (5 h) with both problem solving and theoretical questions.

Underkänd, godkänd

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.

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

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

EIEN55F

2022-12-07

Maria Sandsten