Abstract
Learning outcomes and competences
- the acquisition and demonstration of advanced knowledge on the constitution and performance of power protection in electrical energy systems
- the treatment, validation and interpretation of results obtained in practical assignments, namely in the parameterization and programming of digital relays
- Autonomous work and bibliography research
- Planning team work and developing team spirit
- Report writing;
- The understanding of external, enterprise and commercial contexts in which this sector power system protection
- Setting objectives and project management
Pre-requirements (prior knowledge) and co-requirements (common knowledge)
1 – Possessing knowledge about basic math, the use of trigonometry, vector algebra and complex variables;
2 – Being able to represent power system in p.u. ;
3 – Having critical awareness about the modeling in electrical power transformers, generators, motors and lines / cables for power transmission;
4 – Having the ability to formulate matrix "Z" and "Y";
5 – Understanding power flow;
6 – Being able to calculate symmetrical and asymmetrical short-circuit;
7 – Understanding the principle of stability equation "swing" and criterion of equal areas.
Programme
Understanding power protection, automation and control systems state of art; How power system is monitored and measured; characteristics of relays; the main protection modules: distance relays; application of the distance relays in line protection. relays’ typical curves.Coordination of protection systems. Bus protection systems. Protection of alternating current generators, AC machines, transformers, condensers and alternating current generators/transformers.Protection, automation and control systems' maintenance, diagnosis and test. Digital protection: Principles and characteristics.
Literature
Johns, A. T.; Digital protection for power systems. ISBN: 0-86341-303-X
The Electricity Training Association 340; Power System Protection. ISBN: 0-85296-834-5(vol.1)
Janaka Ekanayake, Nick Jenkins, Kithsiri Liyanage, Jianzhong Wu, Akihiko Yokoyama; Smart Grid: Technology and Applications, Wiley, 2012. ISBN: 0470974095
- Gers and E. Holmes; Protection of Electricity Distribution Networks, 2nd Edition, THE IEE, 2007. ISBN: 0-86341-537-7 / 978-0-86341-537-1
Gers, Juan M.; Protection of electricity distribution networks. ISBN: 0-85296-923-6
Teaching methods and learning activities
Theoretical exposition classes supported on transparencies.
Development themes:
Working examples will be used to facilitate developing the ability to apply theories. Students will be grouped (2-3 students a group) and will be required to prepare and present their proposed solutions in class. Their proposed solutions will be archived for future reference.
Software
CAPE- Computer-Aided Protection Engineering
RTDS Real Time Digital Simulator
PSCAD /EMTDC
IPSA Power System Analysis