An adaptive overcurrent protection in smart distribution grid

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

23 Citations (Scopus)

Abstract

High penetration of distributed energy resources (DERs) creates various protection challenges, such as protection blinding, false tripping, unsynchronized reclosing, etc. Additionally, adaptation of active network management approaches namely demand response and network reconfiguration also threats existing protection practice. In this study, a combination of a local adaptive and communication assisted central protection is proposed, whereby the relay settings are dynamically updated based on online identification of the network topologies and status of DERs. Particularly, the local adaptive protection updates relay settings based on DERs status (ON/OFF) employing locally acquired information, whereas the centralized protection updates the relay settings during major changes in grid topologies: network reconfiguration and switching between islanded and gridconnected modes. The effectiveness of the proposed algorithm is demonstrated through simulation results performed on a medium voltage (10 kV) distribution network using real time digital simulation (RTDS). Simulation results demonstrates that the
proposed algorithm provides good discrimination and selectivity of faults during varied network conditions.
Original languageEnglish
Title of host publicationPowerTech, 2015 IEEE Eindhoven
Number of pages6
PublisherIEEE Press
Publication dateJul 2015
Pages1-6
DOIs
Publication statusPublished - Jul 2015
EventIEEE Eindhoven PowerTech, PowerTech 2015 - Eindhoven, Netherlands
Duration: 29 Jun 20152 Jul 2015

Conference

ConferenceIEEE Eindhoven PowerTech, PowerTech 2015
Country/TerritoryNetherlands
CityEindhoven
Period29/06/201502/07/2015

Keywords

  • Active network management, adaptive protection, distributed generator, short circuit analysis, smart grid

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