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Over-current relay model implementation for real time simulation & Hardware-in-the-Loop (HIL) validation
KTH, School of Electrical Engineering (EES), Electric Power Systems. (Smart Transmission Systems SmartTS Lab)ORCID iD: 0000-0002-6749-8785
KTH, School of Electrical Engineering (EES), Electric Power Systems.
KTH, School of Electrical Engineering (EES), Electric Power Systems.ORCID iD: 0000-0002-4125-1055
2012 (English)In: IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, Montreal, QC: IEEE conference proceedings, 2012, 4789-4896 p.Conference paper, Published paper (Refereed)
Abstract [en]

Digital microprocessor based relays are currently being utilized for safe, reliable and efficient operation of power systems. The overcurrent protection relay is the most extensively used component to safeguard power systems from the detrimental effects of faults. Wrong settings in overcurrent relay parameters can lead to false tripping or even bypassing fault conditions which can lead to a catastrophe. Therefore it is important to validate the settings of power protection equipment and to confirm its performance when subject to different fault conditions. This paper presents the modeling of an overcurrent relay in SimPowerSystems (\textsc {matlab}/Simulink). The overcurrent relay has the features of instantaneous, time definite and inverseĀ  definite minimum time (IDMT) characteristics. A power system is modeled in SimPowerSystems and this overcurrent relay model is incorporated in the test case. The overall model is then simulated in real-time using Opal-RT's eMEGAsim real-time simulator to analyze the relay's performance when subjected to faults and with different characteristic settings in the relay model. Finally Hardware-in-the-Loop validation of the model is done by using the overcurrent protection feature in Schweitzer Engineering Laboratories Relay SEL-487E. The event reports generated by the SEL relays during Hardware-in-the-Loop testing are compared with the results obtained from the standalone testing and software model to validate the model.

Place, publisher, year, edition, pages
Montreal, QC: IEEE conference proceedings, 2012. 4789-4896 p.
IEEE Industrial Electronics Society. Annual Conference. Proceedings, ISSN 1553-572X
Keyword [en]
Harware-in-the-Loop, Over-Current Relay, Opal-RT, Real-Time Simulation
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-118339DOI: 10.1109/IECON.2012.6389585ISI: 000316962904116Scopus ID: 2-s2.0-84872946164ISBN: 978-1-4673-2419-9 (print)OAI: diva2:605703
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society,25 Oct - 28 Oct 2012,Montreal, QC, Canada

QC 20130215

Available from: 2013-02-15 Created: 2013-02-14 Last updated: 2013-06-19Bibliographically approved

Open Access in DiVA