Course description
Development concepts of modern electrical power systems (EPS), transmission congestion issues in ENTSO-E interconnection, technical limitations in long-distance electrical energy transmission, comparison between alternating current (AC) and direct current (DC) transmission, increasing EPS transmission capacity by following modern concepts, examples of past EPS events/disturbances with high impact on EPS operation and introduction of possibilities for their avoidance, Flexible AC Transmission System (FACTS) concept, FACTS devices – basic principles, first generation of FACTS devices, second generation of FACTS devices, shunt FACTS devices, series FACTS devices, combined series-shunt FACTS devices, high voltage direct current (HVDC) transmission, impact of FACTS devices on EPS operational parameters, FACTS applicability (dynamic load-flow control, oscillation damping, transient stability enhancement, voltage control, voltage collapse prevention), modelling of FACTS devices for load-flow studies, modelling of FACTS devices for direct stability assessment methods, modelling of FACTS devices for dynamic EPS phenomena studies.
Course is carried out on study programme
2nd Cycle Postgraduate Study Programme in Electrical Engineering
Objectives and competences
The objective of the course on Advanced Power Transmission Technologies is synthesis of knowledge acquired so far and analysis of limitations in long-distance power transmission or power transmission through large EPSs.
Student gets familiar with basic principles of development of modern EPS. Based on actual past EPS events (blackouts) and assumptions of availability of hypothetical possibilities for blackout mitigation the motivation for studying appropriate devices (FACTS) that might be useful in the process of avoiding blackout is provided. Student becomes familiar with the concept of basic types and generations of FACTS devices. The mains emphasis is on EPS’s point of view in the context of possible impacts of different FACTS devices control. Focus is put on FACTS devices modelling for different types of EPS studies, as FACTS is considered as relatively new technology.
Learning and teaching methods
Lectures and practical laboratory courses. Part of the pedagogical process will be carried out with the help of ICT technologies and the opportunities they offer.
Intended learning outcomes
After successful completion of the course, students should be able to:
- understand the limitations of electrical energy transmission,
- understand basic conceptual differences between direct current (DC) and alternating current (AC) transmission,
- understand structural and operational differences between them: pros and cons, specifics of both concepts,
- use concepts and ways of directing power flows through an electric power system,
- understand the concepts and operating characteristics of FACTS devices.
Reference nosilca
- MIHALIČ, Rafael, GABRIJEL, Uroš. A structure-preserving energy function for a static series synchronous compensator. IEEE transactions on power systems, ISSN 0885-8950. [Print ed.], vol. 19, no. 3, str. 1501-1507.
- MIHALIČ, Rafael, POVH, Dušan, ŽUNKO, Peter. Transient stability control. V: SONG, Yong Hua (ur.), JOHNS, Allan T. (ur.). Flexible ac transmission systems (FACTS), (IEE power and energy series, Vol. 30). London: IEE, cop. 1999, str. 443-505.
- AŽBE, Valentin, MIHALIČ, Rafael. The control strategy for an IPFC based on the energy function. IEEE transactions on power systems, ISSN 0885-8950. [Print ed.], nov. 2008, vol. 23, no. 4, str. 1662-1669.
- AŽBE, Valentin, GABRIJEL, Uroš, POVH, Dušan, MIHALIČ, Rafael. The energy function of a general multimachine system with a unified power flow controller. IEEE transactions on power systems, ISSN 0885-8950. [Print ed.], aug. 2005, vol. 20, no. 3, str. 1478-1485.
- GAŠPERIČ, Samo, MIHALIČ, Rafael. The impact of serial controllable FACTS devices on voltage stability. International journal of electrical power & energy systems, ISSN 0142-0615. [Print ed.], Jan. 2015, vol. 64, str. 1040-1048.
Study materials
- Flexible ac transmission systems (FACTS) / edited by Yong Hua Song and Allan T. Johns. – London : IEE, cop. 1999. – (IEE power and energy series ; Vol. 30).
- E. Acha, C. R. Fuerte-Esquivel, H. Amirez-Perez, C. Angeles-Camacho: "FACTS – Modelling and Simulation in Power Networks", John Wiley & Sons, Chichester 2004.
- Kalyan K. Sen, Mey Ling Sen: "Introduction to Facts controllers, IEEE Press, 2009.
- Naran G. Hingorani, Laszlo Gyugyi: "Understanding FACTS", IEEE PRESS, New York 1999