ING3390 Power Electronics in Marine Electrical Systems

Course code: 
Course name in Norwegian Bokmål: 
Kraftelektronikk i skipselektriske systemer
Program of study: 
Bachelor i militære studier
Level of study: 
Teaching semester: 
2023 Autumn
Assessment semester: 
2023 Autumn
Person in charge: 
Arild Sæbø
Course content

The course will give the cadet a basic understanding of power electronics, electric motor drives, conversion and control of electrical power using semiconductor technology. The course gives a basic introduction in the use of power electronics in electrical propulsion systems used in the Navy

STCW code tables: A-III/6 and A-III/7

STCW function: Electrical, electronic and control systems at operational and support levels. Maintenance and repairs at the operational and support levels.

The course covers the following academic content: Power semiconductors, single phase and three phase diode rectifiers. Phase-controlled rectifiers and inverters. Noise and noise conditions in electrical systems and systems. Harmonic components of periodic signals. Switched DC to DC converters. Switch-mode DC-AC inverters. Electric motor drives (Direct current motor and induction motor). Use of power electronics in marine electric propulsion systems. Uninterruptible power supply and other applications of power electronics in electrical systems. Practical laboratory work.

Learning outcome


After completing the course, the cadet is able to:

  • provide examples of various converters such as rectifiers and frequency converters and other power electronics that are used in marine electrical installations.
  • describe harmonic components as well as analyse and understand the impact of a marine electrical installation.
  • describe electric motor drives and marine electric propulsion systems used in the Navy.


After completing the course, the cadet is able to:

  • explain what characterises a power electronic system and a wide range of applications for power electronics
  • describe and analyse basic topologies of converters and have an understanding of grid effects from power electronic systems
  • describe electric motor drives, and make simple design sketches for power electronic systems
  • apply knowledge in power electronics and participate in laboratory work and master relevant methods and tools

General competences

After completing the course, the cadet is able to:

  • share his/her knowledge about power electronics and electric motor drives in relation to theories, issues and solutions.
  • know the structure and operation of marine electric propulsion systems
  • reflect on safety issues when working with power electronics and electric motor drives
Working and learning activities

Emphasis is placed on using examples from other subjects and from the service to illustrate topics in the course.

· Curriculum review using questions/discussions

· Calculation exercises and exercise review by student/teacher

· Student presentations, compulsory assignments, tutorials and independent study.

· Laboratory exercises and computer simulations  

· Tests

Sensor system

Examination is carried out according to the Regulations for Admission, Studies and Examinations (in Norwegian, “Forskrift om opptak, studier og eksamen”) at the Norwegian Defence University College.

Additional information



    Mohan, N., Undeland, T. M., & Robbins, W. P. (1995): Power Electronics. Converters, applications and design (2. utg.). John Wiley & Sons.

    Thorsen, O. V. (2000): Kraftelektronikk (5.utg.). Universitetsforlaget.

    Form of assessmentGroupingDurationType of durationGrading scaleProportionOral examinationCommentSupported materials
    MappevurderingIndividual -A-F100 %Not requiredThe portfolio consists of laboratory exercises,semester assignments and tests. Details will be announced at the beginning of the term.Calculator, formula collection
    Form of assessment:Mappevurdering
    Type of duration:-
    Grading scale:A-F
    Proportion:100 %
    Oral examination:Not required
    Comment:The portfolio consists of laboratory exercises,semester assignments and tests. Details will be announced at the beginning of the term.
    Supported materials:Calculator, formula collection
    Approval signature: 
    Fagråd Sjømilitær Teknologi, 18.04.2018