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ELE-3607 Electrical Machines and Power Electronics 1 - 5 stp

The course is administrated by

Faculty of Engineering Science and Technology

Type of course

The course can be taken as a single course.

Course contents

The course will introduce the student to power electronic components and basic circuits for DC-DC and DC-AC energy conversion. Equivalent models and characteristics for commonly used electrical DC and AC machines is included in the course, together with power electronic based drives. Familiarizing with hardware, measurement techniques and safety is ensured through extensive laboratory work during the course.

Power Electronic fundamentals:

- Basic functionality of semiconductor switches

- Established and future transistor technology

- Electric circuit design and analysis

- Energy sources and conversion

- Magnetic design and analysis

- Simulations using PSPICE and MATLAB/Simulink

Power Electronic circuits

- Switched circuits

- Rectifier circuits

- Line controlled thyristor converters

- DC-DC switched mode converters (Buck, Boost, Buck-boost)

- Flyback converters

- Full-bridge converter

- DC-AC inverters

- Hard and soft switching

- Power factor correction

- Snubber circuits

- Practical converter design

- Application of power electronic converters

Electrical Machines:

- Mechanical systems in motor drives

- Equivalent models and characteristics of DC and AC machines

- Control of DC servo drives

- Scalar control of AC adjustable speed drives

Application deadline

Applicants from Nordic countries: 1. December. Exchange students and Fulbright students: 1. October.

Admission requirements

A relevant undergraduate bachelor Engineering programme with minimum 30 credits Mathematics/statistics topics.

Application code: 9371

Objective of the course

After passing this course, the student shall have the following learning outcome:


- The candidate will be able to explain the use of transistors, thyristors and diodes in switched circuits

- The candidate will be able to explain how power conversion can be performed using power electronics and pulse with modulation

- The candidate will know the basic converter topologies (Buck, Boost, Buck-Boost and full-bridge) for converting one DC voltage into another.

- The candidate will be able to explain how DC can be converted to AC using power electronic switches

- The candidate will know the main sources of energy losses in power electronic circuits

- The candidate will have knowledge on running experiments and conducting measurements in a laboratory environment


- The candidate will be able to derive mathematical models for electrical circuits with linear and switched elements

- The candidate will be able to simulate power electronic circuits in PSPICE and Simulink

- The candidate will be able to calculate component values for DC-DC converters

- The candidate will be able to design and build inductors based on prefabricated cores

- The candidate will be able to design a controller for DC to AC converters with desired output frequency and voltage

- The candidate will be able to select and dimension an electric motor drive

- The candidate will be able to design a cascade control loop for DC motor drives

- The candidate can apply power factor correction and snubber circuits to increase power quality in power electronic converters

- The candidate will be able to perform measurements, analysis and troubleshooting on power electronic circuits

- The candidate will be able to realize control algorithms by using rapid prototyping systems (dSpace)

General competence:

- The candidate will have basic knowledge on the use of power electronics in energy production, motor drives and power supplies.

Language of instruction


Teaching methods

The course will use a combination of classic lectures and online material. Laboratory exercises will be performed in groups.


Courswork / Course requirements

- Completed the required HSL courses within laboratory work and safety is required be approved before gaining access to the laboratory.

- 1 (out of 1) mandatory digital test in measurement techniques and correct use of laboratory equipment.

- 1 (out of 1) course evaluation form submitted

- 4 (out of 4) approved laboratory exercises.

Examination and assessment

The assessment is based on:

- 3-hours digital examination (100 %)

Grading is scaled from A (highest) to F (lowest), with E as the minimum pass grade.

Re-sit oral exam will be arranged if any candidate received grade F in the previous ordinary exam.

Date for examination

Take-home exam hand out date 28.05.2021 hand in date 28.05.2021

The date for the exam can be changed. The final date will be announced at your faculty early in May and early in November.

Lectures Spring 2021
Forelesning f.aman. Bjarte Hoff