High-Frequency Signature-Based Fault Detection for Future MV Distribution Grids

Yaswanth Velaga, Kumaraguru Prabakar, Akanksha Singh, Pankaj Sen

Research output: NRELPresentation


Increasing penetration levels of inverter based distributed energy resources (DERs) impact the legacy distribution system protection. Inverter based DERs provide approximately 1.2-2 pu fault current. In systems with high penetration of inverter based DERs, it is difficult for over-current based protection schemes to differentiate between normal loading conditions and a fault. Directional, distance, and adaptive forms of protection schemes are also affected by low fault currents. This paper analyzes fault generated traveling wave (TW) based high-frequency signatures in the distribution system. In order to simulate such signatures, frequency-dependent distributed parameter line modeling approach is used in this research work to represent distribution lines and underground cables. Modified IEEE 13-bus medium voltage test system is modeled in electromagnetic transient simulation tool and multiple transient scenarios are simulated in this test system. The results are analyzed to understand the high-frequency signatures that can be used to detect and locate faults under high penetration of DERs.
Original languageAmerican English
Number of pages15
StatePublished - 2020

Publication series

NamePresented at the 56th Annual IEEE Industrial and Commercial Power Systems (I&CPS) Technical Conference, 29 June - 28 July 2020

NREL Publication Number

  • NREL/PR-5D00-77133


  • distribution line modeling
  • distribution system protection
  • electromagnetic transient program
  • EMTP
  • fault analysis
  • fault detection
  • high-frequency signature
  • traveling wave


Dive into the research topics of 'High-Frequency Signature-Based Fault Detection for Future MV Distribution Grids'. Together they form a unique fingerprint.

Cite this