Valid for: 2024/25
Faculty: Faculty of Engineering LTH
Decided by: PLED E
Date of Decision: 2024-04-02
Effective: 2024-05-08
Depth of study relative to the degree requirements: Second cycle, in-depth level of the course cannot be classified
Elective for: E4-em, F4, F4-es, F4-fel, M4-me, M4-tt, N4-es
Language of instruction: The course will be given in English on demand
Almost all electric energy used in society is processed by switched power electronic, from mobile phone chargers to motor drives in heavy duty full electric trucks, from wind power generation to electric vehicle charging stations etc. To design and control such converters it is necessary to understand both what power electronic circuits that are relevant in different applications, how the switching of the involved switches is modulated, how the modulation is used for control of voltages and currents etc., and how to design such switching converters.
One purpose of this course is to provide knowledge about the most important power electronic circuit configurations, including both power semiconductors and passive components like inductors and capacitors.
Another purpose is to provide knowledge of how modulation and current control is done in the most relevant circuits.
A third purpose is to provide knowledge on how to design a power electronic circuit with a specific set of functional specifications.
The course thus provides understanding of applications of power electronic converters such as switched power supplies, motor drive systems, solar cell converters, electric vehicle chargers etc. In particular the student will develop and verify (electrically and thermally) a power electronic converter for a low power application like an electric scooter or bicycle motor drive. The battery supply and the motor will be given, but the power electronic converter with its modulation and control will be developed as a part of the course.
This course is required to take subsequent courses on Power Electronic Applications in electrical motor drives, grid connected converters for grid batteries and/or photovoltaics.
Learning consists of lectures, arithmetic exercises, simulation work and lab work where simulations and laboratory work are closely linked.
Knowledge and understanding
For a passing grade the student must
Competences and skills
For a passing grade the student must
Judgement and approach
For a passing grade the student must
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
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.
Grading scale: TH - (U, 3, 4, 5) - (Fail, Three, Four, Five)
Assessment: Approved laborations and simulations that are reported continuously. Written exam (5 h) with both problem solving and theoretical questions.
The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.
Modules
Code: 0124. Name: Power Electronic Control and Design Project.
Credits: 5.0. Grading scale: TH - (U, 3, 4, 5).
Assessment: Approved written exam
The module includes: Written exam
Code: 0224. Name: Laboratory and Simulation Exercises.
Credits: 2.5. Grading scale: UG - (U, G).
Assessment: Approved laboratory work and written reports.
The module includes: Laboratory work and written reports.
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.
The number of participants is limited to: No
Kursen överlappar följande kurser:
EIEN25
EIE023
EIE015
Course coordinator: Professor Mats Alaküla,
mats.alakula@iea.lth.se
Course homepage: https://www.lth.se/iea/utbildning/valfria-kurser-i-lund/kraftelektronik-komponenter-och-omvandlare/