Advanced Power Transmission Technologies

Subject 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.

The subject is taught in programs

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.

Teaching and learning 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.

Expected study results

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.

Basic sources and literature

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