Course syllabus

Course-PM

ENM061 ENM061 Power electronic converters lp2 HT20 (7.5 hp)

Course is offered by the department of Electrical Engineering

Contact details

List of...

  • examiner
  • lecturer
  • teachers
  • supervisors

...along with their contact details. If the course have external guest lecturers or such, give a brief description of their role and the company or similar they represent.

If needed, list administrative staff, along with their contact details.

Course purpose

Short description of the course purpose and content: can be copied from syllabus in Studieportalen. Additional information can be added.

Schedule

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Course literature

List all mandatory literature, including descriptions of how to access the texts (e.g. Cremona, Chalmers Library, links).

Also list reference literature, further reading, and other non-mandatory texts.

Course design

Description of the course's learning activities; how they are implemented and how they are connected. This is the student's guide to navigating the course. Do not forget to give the student advice on how to learn as much as possible based on the pedagogy you have chosen. Often, you may need to emphasize concrete things like how often they should enter the learning space on the learning platform, how different issues are shared between supervisors, etc.

Provide a plan for

  • lectures
  • exervises
  • laboratory work
  • projects
  • supervision
  • feedback
  • seminars

Should contain a description of how the digital tools (Canvas and others) should be used and how they are organized, as well as how communication between teachers and students takes place (Canvas, e-mail, other).

Do not forget to describe any resources that students need to use, such as lab equipment, studios, workshops, physical or digital materials.

You should be clear how missed deadlines and revisions are handled.

Changes made since the last occasion

A summary of changes made since the last occasion.

Learning objectives and syllabus

Learning objectives:

  • Determine Fourier components and total harmonic distortion (THD) for basic current and voltage wave-shapes.
  • Recognize the operating principle of the most common active components (e.g. diode, thyristor, IGBT, and MOSFET) as well as the most common passive components (e.g. capacitors, transformers and inductors).
  • Explain and exemplify how pulse width modulation (PWM) works. Describe the purpose as well as the means to control the desired quantity and recognize the need for a controller circuit within the power electronic converter.
  • Analyze and perform analytical calculations of ideal DC/DC converters such as the buck, boost, buck-boost, flyback and the forward converter. The operating principle of each topology is differentiated and thoroughly evaluated in both continuous and discontinuous conduction mode by its current and voltage wave-shapes. In addition to this, other topologies (e.g. the push-pull, half-bridge and full-bridge converter) and circuit enhancements (e.g. converter interleaving) are exemplified.
  • Describe the basic operating principle of both single-phase and three-phase DC/AC inverters. Different modulation strategies (e.g. PWM and square wave operation) are implemented and the resulting current and voltage waveforms are evaluated and compared.
  • Explain the operation of multilevel converters (e.g. 3-level and 5-level NPC and MMC topologies) by current and voltage waveform analysis and apply the benefits and drawbacks to e.g. harmonics and losses.
  • Perform calculations on single- and three-phase diode rectifiers operating with voltage-stiff and current-stiff DC-side. Apply the concept of line impedance within the converter circuit (current commutation) and evaluate the influence.
  • Perform calculations on single- and three-phase thyristor rectifiers operating with a current stiff DC-side. Apply the concept of line impedance within the converter circuit (current commutation) and evaluate the influence. Analyze more advanced topologies (e.g. 12-pulse connection) of the thyristor rectifier and distinguish the benefits and drawbacks.
  • Identify simple power electronic converter diagrams and schematics. Recognize the different parts in a physical circuit on which basic wave-shape and efficiency measurements is performed.
  • Perform an average small-signal dynamic modeling of a step-down converter in order to demonstrate how a corresponding analog and digital controllers can be designed.
  • Determine the losses in both passive and active components. The resulting temperature in the active component is evaluated and an appropriate heat-sink is chosen. Have a basic understanding of how the lifetime of a component can be determined.
  • Implement and test the various power electronic converter circuits, containing discrete elements, using Spice-based computer softwares as well as perform practical labs to have a firsthand experience on how real DC/DC converters operate. The exercises will help to understand the operating principles of the various converter circuits, analyze waveforms, evaluate parameter variations and perform harmonic/Fourier analysis.

Link to the syllabus on Studieportalen.

Study plan

If the course is a joint course (Chalmers and Göteborgs Universitet) you should link to both syllabus (Chalmers and Göteborgs Universitet).

Examination form

Description of how the examination – written examinations and other – is executed and assessed.

Include:

  • what components are included, the purpose of these, and how they contribute to the learning objectives
  • how compulsory and/or voluntary components contribute to the final grade
  • grading limits and any other requirements for all forms of examination in order to pass the course (compulsory components)
  • examination form, e.g. if the examination is conducted as a digital examination
  • time and place of examination, both written exams and other exams such as project presentations
  • aids permitted during examinations, as well as which markings, indexes and notes in aids are permitted

Do not forget to be extra clear with project assignments; what is the problem, what should be done, what is the expected result, and how should this result be reported. Details such as templates for project reports, what happens at missed deadlines etc. are extra important to include.

Course summary:

Date Details