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Institutionernas kurser för doktorander


Kursplan för

ENM070 - Power electronic devices and applications
Kursplanen fastställd 2009-02-19 av programansvarig (eller motsvarande)
Ägare: MPEPO
7,5 Poäng
Betygskala: TH - Fem, Fyra, Tre, Underkänt
Utbildningsnivå: Avancerad nivå
Huvudområde: Elektroteknik
Institution: 47 - ENERGI OCH MILJÖ

Undervisningsspråk: Engelska

Modul   Poängfördelning   Tentamensdatum
Lp1 Lp2 Lp3 Lp4 Sommarkurs
0107 Tentamen 7,5 hp Betygskala: TH   7,5 hp   26 Maj 2011 fm H,  14 Jan 2011 em V,  24 Aug 2011 em V

I program

MPEPO ELECTRIC POWER ENGINEERING, MSC PROGR - Core courses, Årskurs 1 (valbar)


Bitr professor  Massimo Bongiorno
Professor  Torbjörn Thiringer


EEK180   Power electronics-2


För kurser inom Chalmers utbildningsprogram gäller samma behörighetskrav som till de(t) program kursen ingår i.

Kursspecifika förkunskaper

Power electronic converters


The aim of this course is to enhance the knowledge of the students regarding the design and application of power electronic converters. Examples are: design of driver circuits of various quality and for various applications, design of snubber circuits for improved EMI and loss operation, thermal calculations and considerations. In addition a goal is to explain the concept of soft-switching converters such as resonant and zero voltage current as well as zero voltage switching converters. Moreover an objective is to provide the students with knowledge of power electronic equipment connected to the grid such as HVDC (both classical and modern VSC-based), FACTS equipment, power factor correctors, UPS and power conditioners. Finally an aim is to give the students a deeper understanding in the properties and control of power electronic semiconductors.

Lärandemål (efter fullgjord kurs ska studenten kunna)

design drive circuits for MOSFET s and IGBT transistors, both unipolar and bipolar ones.
describe how turn-on, turn-off and overvoltage snubber circuits are designed and how they operate.
calculated component values for turn-off and overvoltage snubbers based on circuit requirements.
calculate the current and voltage wave-forms in resonant, and zero-voltage and zero-current switching converters, with the knowledge of initial current and voltage values.
theoretically describe the function of a control circuit for a dc/dc-converter. Design a feed-back control loop with a desired bandwidth.
practically put a control circuit for a dc/dc-converter into operation determining the components in order to obtain: voltage regulation, current mode control, over-current protection as well as gate pulses for a MOSFET transistor.
analyse oscillations over switching components on a real circuit and design circuits that reduce these as well as to implement these improvements on a real circuit.
describe how an HVDC converter system is constructed and which components that are a part of such an installation.
determine the voltage and current wave-forms for a 12-pulse HVDC classic converter.
describe how FACTS equipment such as SVC, TSCR and the TCR is designed and be able to determine the resulting impedance as well as the additional reactive power flow caused/created by the component.
describe superficially how a diode, thyristor, GTO, BJT (Bipolar Junction Transistor) and a MOSFET is designed and how it operates.
describe how harmonics originate, how they propagate and how an EMI-filter works.
describe function, energy as well as power capacity for energy storage systems with an electrical interface.
describe how renewable energy sources, such as wind energy and solar cells are connected to the electric network.


Lectures and tutorials:
Gate drivers: for bipolar transistors, MOSFETS, thyristors and GTO s, unipolar and bipolar driving, control circuits.
Snubber circuits: turn-on, turn-off and over-voltage snubbers. Lossless and RCD snubbers. Snubber design for various applications.
Soft-switching converters: Series and parallel resonant converters, zero-switching current and voltage converters (ZVS, ZCS)
Control of dc/dc-converters: Usage of a control IC, current and voltage protection, voltage and current control, design of converter bandwidth
Power electronic apparatus connected to the grid: Power factor corrector circuits, power conditioners & UPS.
HVDC: classical thyristor-based and novel VoltageSourceConverter-based HVDC.
FACTS: the construction of SVC, TCSC as well as the impact on the grid of series and shunt compensation of reactive power.
Harmonics: origin, impact and filtering of harmonics: EMI considerations.
Construction and behaviour of semiconductor devices: Diodes, Thyrsitors, GTO s, MOSFETs, BJT s, IGBT s and MOSFET s
Design of magnetic components: Practical construction of an inductor as well as a transformer
Energy storage systems with electrical interface: SMES, batteries, supercapacitors, application to traction applications
Grid interconnection of renewable energy systems: Power electronic interface for solar cells and wind energy converters.

Laboratory project (compulsory):
One compulsory laboratory project work including experimental work on the design of a power electronic converter is included in the course. Measured, calculated and simulated results of the project work is to be reported in a written report.


The course comprises of ca 16 lectures (2 x 45 min), 14 tutorials (2 x 45 min), one practical laboratory project work (14 h).


Mohan, Undeland, Robbins, Power Electronics, Converters, applications and design, Wiley 2003, 3rd ed.


Written examination. Grades: Fail, 3, 4 or 5. Approved laboratory project work including a written report.

Sidansvarig Publicerad: må 13 jul 2020.