FYS377 Digital Electrical Power Systems
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Showing course contents for the educational year 2021 - 2022 .
Course responsible: Ruth Heidi Samuelsen Nygård
Teachers: Benjamin Schäfer
ECTS credits: 10
Faculty: Faculty of Science and Technology
Teaching language: NO
Teaching exam periods:
Course frequency: Annually
First time: Study year 2014-2015
M-MF, M-IØ, M-MPP
Our electric power systems face major restructuring. For example, they will be carbon-free and undergo a switchover to digitization. One challenge is that a larger part of the electricity will be generated in distributed renewable, uncontrollable, often local sites with different performance in large numbers. At the same time the system should be able to handle heavy sources and sinks for electric power and energy by building HVDC cables to other countries and that nuclear power is phased out in Sweden. Well-functioning electric power and energy transfer will be an important key to switch to renewable society for secure exchange of electrical energy and power quality. The course will provide a deeper insight and understanding of our complex power systems. The course will also provide insight into how ICT and computer sciences are used to plan, monitor, manage and maintain tomorrow's power system. The course highlights how modern IT technology can be used in existing power systems is now undergoing considerable changes in terms of both manufacturing, transfer and use of electrical energy and power.
Get a basic understanding of the future digital European electric power system:
- Introduction to electric power grids and power systems, requirements for power systems.
- Load from a system perspective. Consumption and power tariffs, load profiles and duration curves.
- The power system's infrastructure - Overhead lines, cables, stations etc, plant management, real-time monitoring and risk analyzes.
- Basic transformer theory. Equivalent circuits for real transformers and per-unit system.
- Modeling of transmission lines. Two-port network and ABCD parameters. Approaches for short and medium lines. Differential equations for long transmission lines.
- Power flow analysis. Python-based solutions of linear algebraic equations (Gaussian elimination, Jacobi and Gauss-Seidel) and iterative solutions of nonlinear algebraic equations with Newton-Raphson.
- Use of Power World for simulation of larger power systems.
- Political framework for the current power system, reasons for changes, more renewable energy, changes in production and consumption (for example electrical vehicles).
- Grid planning - N-1 criterion, probabilistic methods. Norway's power system in a European perspective.
- Operation and marketing solutions for electric power systems, PMU (Power Management Unit), real-time control.
- Challenges and trends in the current power system, power system balance, frequency quality, stability analysis, power reserve in rotating masses.
Lectures 13 weeks, 2 x 2 hours per week. Exercise sessions 13 weeks, 1 x 2 hours per week
1-2 excursions to e.g. transformer stations, operating centrals for energy supply.
Lecture notes, papers and chapter from textbooks. Literature will be announced at the beginning of the course.
FYS101, FYS102, FYS230, MATH111, MATH112, MATH113,
FYS103, FYS235 Electronics or similar
Compulsory hand-in assignments. Rules for approving mandatory activities will be announced when the course starts.
3,5 h written
Type of course:
Lectures: 13 weeks. 4 hours per week = 52 hours
Weecly exercises: 13 weeks. 2 hours per week = 26 hours
The external and internal examiner jointly prepare the exam questions and the correction manual. The external examiner reviews the internal examiner's examination results by correcting a random sample of candidate's exams as a calibration according to the Department's guidelines for examination markings.
Allowed examination aids: C1 All types of calculators, other aids as specified
Examination details: Written exam: Letter grades