Traveling Wave Relays for Distribution Feeder Protection with High Penetrations of Distributed Energy Resources

Yaswanth Velaga, Kumaraguru Prabakar, Akanksha Singh, Pankaj Sen

Research output: Contribution to conferencePaperpeer-review

3 Scopus Citations

Abstract

Increased penetration of power electronics interfaced Distributed Energy Resources (DER) like PV, electric vehicle and battery storage in the distribution system (both in numbers and sizes) may cause bi-directional power flows under normal operation. In addition, they contribute low fault current under short circuit conditions. These two changes can impact the proper operation of legacy protection systems. This can add additional challenges during weak grid and islanded operation. In this research, traveling wave (high frequency) signature based protection scheme is proposed for future distribution systems. Simulations are performed under different transient scenarios to provide insight into the high frequency signatures to show the traveling wave behavior. Finally, this paper discusses the importance of sensing and digital processing requirements for traveling-wave protection in distribution system.

Original languageAmerican English
Pages59-66
Number of pages8
DOIs
StatePublished - Apr 2021
Event2021 IEEE Rural Electric Power Conference, REPC 2021 - Virtual, Online
Duration: 27 Apr 202129 Apr 2021

Conference

Conference2021 IEEE Rural Electric Power Conference, REPC 2021
CityVirtual, Online
Period27/04/2129/04/21

Bibliographical note

See NREL/CP-5D00-75837 for preprint

NREL Publication Number

  • NREL/CP-5D00-81007

Keywords

  • Distributed energy resources
  • distribution system protection
  • high-frequency signature
  • inverters
  • power distribution
  • power system protection
  • traveling wave

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