Course - Stability in power grids, modelling and analysis - IELEG3230
Stability in power grids, modelling and analysis
New from the academic year 2025/2026
About
About the course
Course content
Modelling of a power system to simulate how it perform in different operation conditions and during faults/disturbances is important in order to assess the ability of the power system to operate securely, handle fault situations and changes in production and load. The course contains fundamental theory about stability in power systems. Different kinds of stability like voltage stability, transient stability, frequency stability and small signal stability are important themes in the course. The course contains modelling and methods to analyze the ability of power systems to sustain changes or disturbances. The course contains an introduction to modelling and simulation of power systems with digital tools in order to analyze power system stability.
Learning outcome
The student is to obtain:
Knowledge:
- Know about the different kinds of stability in a power system and how they influence the operation and planning of the power system
- Know how to model a power system in a simulation program
- Know how simulations can be utilized to assess stability of a power system
- Know about the need to consider stability in microgrids
Skills:
- Be able to explain how different kinds of stability may cause limitations for power system operation and/or changes of production and load in a power system
- Be able to explain how a state space model can be developed on a dynamic system
- Be able to explain how it is possible to analyze the voltage stabilty in a power system
- Be able to explain the equal area method for assessment of the transient stabilty of synchronous generators connected to the power grid
- Be able to apply calculations to analyze stability in a power system with respect to voltage, small disturbances and large disturbances
- Be able to model and simulate smaller power systems with digital tools in order to analyze the stabilty of these
General competence:
- The student has obtained knowledge and skills regarding important limitations for planning and operation of power systems
- The student has obtained knowledge and skills about using digital tools
- The student has obtained knowledge about the role and responsibility when working with a counting project or a counting assignment
Learning methods and activities
Lectures, work with project/assignment, exercises
Compulsory assignments
- Exercises
Further on evaluation
The evaluation has two parts: Oral school exam (70/100) and Project/Assignment (30/100).
Compulsory work requirements: At least 70 percent of the exercises must be approved in order to get the Project/Assignement and the Exam evaluated.
Re-sit for oral exam and project:
Re-sit is only done in parts of the evaluation where the candidate has failed.
- Oral school exam: Re-sit during March
- Re-sit of the Project/Assignment: A new project task is given in the beginning of March and the report of the work on this Project must be delivered during March
Specific conditions
Admission to a programme of study is required:
Electrical Engineering (BIELEKTRO)
Recommended previous knowledge
ELEG1002 Electrical Circuits, Modeling and Analysis or similar
IELEG2118 Electrical Power Systems or similar
IELEG2231 Electrical Machines or similar
Course materials
Compendium. Will be made available at the beginning of the course.
Subject areas
- Electrical Power Engineering
- Electrical Power Engineering
- Physics
Contact information
Course coordinator
Lecturers
Department with academic responsibility
Examination
Examination
Ordinary examination - Autumn 2025
Assignment
Oral exam
To 2025-12-10 Time 09:00 Duration 45 minutes