Reliability in electrical power engineering

Course description

Basic principles of reliability, safety, risk and their mutual relationship.

Basics of probability theory, set theory and Boolean algebra.

Measures of reliability and safety of facilities and devices. Risk criteria. Risk informed decision making.

Methods for assessment reliability and safety – theory and examples: loss of load probability, distribution indices (system average interruption frequency index, system average interruption duration index), effective load carrying capability, fault tree, event tree.

Common cause failures – methods and examples.

Improvement of reliability of power systems and devices: redundancy, independence, separation, fail-safe principle, single failure criterion.

Course is carried out on study programme

Objectives and competences

Students will obtain basic information about safety and reliability in electrical power engineering. They will learn the basic methods and indices about assessment of reliability. They will get knowledge about importance of reliability of particular components and overall systems and their impact to safety and economics of specific facilities or systems. The safety culture will be emphasised and responsibility for safe and reliable use of energy will be stimulated.

Learning and teaching methods

Lectures or individual consultations, supervisor of seminar work

Intended learning outcomes

Ability of assessment of improvement of reliability with consequent increase of related costs. Judgement of efficiency of future investments to real power systems considering improvement of reliability indices and consequently increased costs.

Reference nosilca

Čepin M. (2011) Assessment of Power System Reliability, Springer

Čepin M. (2012) Advantages and difficulties with the application of methods of probabilistic safety assessment to the power systems reliability, Nuclear Engineering and Design, Vol. 246, pp 134-140

Čepin M. (2011) Risk-informed decision-making related to the on-line maintenance, Nuclear engineering and design, Vol. 241, no. 4, pp 1114-1118

Bricman Rejc Ž., Čepin M. (2013) Izboljšana metoda za oceno zanesljivosti proizvodnje v elektroenergetskem sistemu. Elektrotehniški vestnik, letn. 80, št. 1/2, str. 57-63

Bricman Rejc Ž., Čepin M. (2014) An extension of Multiple Greek Letter method for common cause failures modelling. Journal of loss prevention in the process industries,  vol. 29, str. 144-154

Study materials

Čepin M. (2011) Assessment of Power System Reliability, Springer, 2011

Čepin M. (2012) Advantages and difficulties with the application of methods of probabilistic safety assessment to the power systems reliability, Nuclear Engineering and Design, Vol. 246, pp 134-140

Čepin M. (2011)Risk-informed decision-making related to the on-line maintenance, Nuclear engineering and design, Vol. 241, no. 4, pp 1114-1118

Bricman Rejc Ž., Čepin M. (2013) Izboljšana metoda za oceno zanesljivosti proizvodnje v elektroenergetskem sistemu. Elektrotehniški vestnik, letn. 80, št. 1/2, str. 57-63

Bricman Rejc Ž., Čepin M. (2014) An extension of Multiple Greek Letter method for common cause failures modelling. Journal of loss prevention in the process industries,  vol. 29, str. 144-154

Bodi na tekočem

Univerza v Ljubljani, Fakulteta za elektrotehniko, Tržaška cesta 25, 1000 Ljubljana

E:  dekanat@fe.uni-lj.si T:  01 4768 411