Syllabus for |
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| ENM070 - Power electronic devices and applications |
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| Syllabus adopted 2012-02-23 by Head of Programme (or corresponding) |
| Owner: MPEPO |
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7,5 Credits |
| Grading: TH - Five, Four, Three, Not passed |
| Education cycle: Second-cycle |
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Major subject: Electrical Engineering
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Department: 47 - ENERGY AND ENVIRONMENT
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Teaching language: English
Open for exchange students
Block schedule:
A
| Course module |
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Credit distribution |
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Examination dates |
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Sp1 |
Sp2 |
Sp3 |
Sp4 |
Summer course |
No Sp |
| 0107 |
Examination |
7,5 c |
Grading: TH |
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7,5 c
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27 May 2013 pm V, |
18 Jan 2013 pm V, |
19 Aug 2013 pm V |
In programs
MPSYS SYSTEMS, CONTROL AND MECHATRONICS, MSC PROGR, Year 1 (elective)
MPEPO ELECTRIC POWER ENGINEERING, MSC PROGR, Year 1 (compulsory elective)
Examiner:
Tekniklektor
Stefan Lundberg
Professor
Torbjörn Thiringer
Replaces
EEK180
Power electronics-2
Course evaluation:
http://document.chalmers.se/doc/e3909a11-9ecc-4424-a1fb-75f580308a87
Eligibility:
For single subject courses within Chalmers programmes the same eligibility requirements apply, as to the programme(s) that the course is part of.
Course specific prerequisites
Power electronic converters
Aim
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.
Learning outcomes (after completion of the course the student should be able to)
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 a current-stiff and voltage-stiff HVDC converter system are constructed, which components that are a part of such installations, as well as their functionalities.
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 important aspects regarding power quality/EMI/EMC such as requirements, propagation, generation, effect and mitigation.
perform simplified calculations on how inductively and capacitively coupled disturbances propagate from source to victim.
Content
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.
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 are to be reported in a written report and parts should be presented at a seminar in the end of the course.
Organisation
The course comprises of ca 18 lectures (2 x 45 min), 11 tutorials (2 x 45 min), one practical laboratory project work (28 h).
Literature
Mohan, Undeland, Robbins, Power Electronics, Converters, applications and design, Wiley 2003, 3rd ed.
Examination
Written examination. Grades: Fail, 3, 4 or 5. Approved project work including a written report and oral presentation.