Course content

The course aims to give the student tools and understanding for modelling, analysis and operation of electrical circuits as part of a larger sustainable energy system. The subject focuses on methods for analysis of circuits, with the main focus on alternating current (AC) circuits including magnetically coupled circuits and transformers. Additionally, AC circuit concepts such as active and reactive power, resonances, phasors, balanced three-phase circuits, etc. will be introduced. The subject covers examples with basic regulation in electrical systems like power electronic converters/electrical motors.

Items in the subject:

• Alternating current and voltage under stationary sinusoidal conditions. Impedance, phasors, complex power, apparent power, active power, reactive power. Instantaneous values, RMS values, frequency and phase.
• Analysis of circuits in the frequency domain. Active and passive filters, resonance and resonance frequency.
• Circuits with magnetic coupling and ideal transformer. Mutual inductance.
• Basic three-phase systems. IT, TT and TN grid.
• Basic power electronics.
• Sustainable energy systems with storage.
• Basic control of electrical systems as for example control of power electronic converters or motors.
• Hand calculation and simulation/calculation using digital tools.
• Group work, practical laboratory work and documentation of this

Learning outcome

The student must understand:

• Expanded modeling and analysis of a selection of circuits, and the basics of how to implement control of electrical circuits.
• How to calculate current, voltage and power in one-phase and symmetrical three-phase circuits during stationary conditions
• Safety in the lab, physical circuit connections and troubleshooting, as well as how to use measuring instruments.

The student must be able to:

• Use network theorems, component characteristics and fundamental laws in electrical circuit theory to calculate parameters in systems with a selection of components.
• Express time varying functions based on phasors and express phasors based on time varying sinusoidal functions
• Carry out system analyzes using hand calculations and simulations, as well as practical connection and measurement in the lab.
• Connect simple circuits according to given specifications. Measure electrical parameters using a multimeter and oscilloscope.
• Dimensioning/designing a selection of circuits.
• Carry out and document group work/laboratory work.

After completing the course, the candidate has the general competence to:

1. Use fundamental analysis methods from this subject in later parts of the candidate's studies and in work situations.
2. Know Norwegian and English technical terms for methods/techniques, components/ parameters , measuring units etc.
3. Use a simulation tool for circuit analysis.
4. Follow safety instructions for laboratory work.
5. Document laboratory work.

Learning methods and activities

The learning activities will be a combination of lectures and student-centered learning activities.

Obligatory activites: Laboratory work and exercises.

Some of the teaching activities may be taught in English.

Compulsory assignments

• Exercises
• Laboratory Work

Specific conditions

Recommended previous knowledge

ELEG1001 Electric circuits - introduction (or similar)

Course materials

To be announced at the beginning of the course.

Credit reductions