High Impedance Fault Detection and Location in Combined Overhead Line and Underground Cable Distribution Networks Equipped with Data Loggers

Saeid Khavari, Rahman Dashti, Hamid Reza Shaker and Athila Santos
Additional contact information
Saeid Khavari: Young Researchers and Elite Club, Bushehr Branch, Islamic Azad University, Bushehr 7515895496, Iran
Rahman Dashti: Clinical and Laboratory Center of Power System & Protection, Engineering Faculty, Persian Gulf University, Bushehr 7516913817, Iran
Hamid Reza Shaker: Center for Energy Informatics, University of Southern Denmark, 5230 Odense, Denmark
Athila Santos: Center for Energy Informatics, University of Southern Denmark, 5230 Odense, Denmark

Energies, 2020, vol. 13, issue 9, 1-15

Abstract: Power distribution networks are vulnerable to different faults, which compromise the grid performance and need to be managed effectively. Automatic and accurate fault detection and location are key components of effective fault management. This paper proposes a new framework for fault detection and location for smart distribution networks that are equipped with data loggers. The framework supports networks with mixed overhead lines and underground cables. The proposed framework consists of area detection, faulty section identification, and high impedance fault location. Firstly, the faulty zone and section are detected based on the operation of over-current relays and digital fault recorders. Then, by comparing the recorded traveling times at both ends of lines, which are related to the protection zone, the faulty line is identified. In the last step, the location of the fault is estimated based on discrete wavelet transform. The proposed method is tested on a 20 kV 13 node network, which is composed of overhead lines and underground cables. The method is tested in both balanced and unbalanced configurations. The obtained results confirm the advantages of the proposed method compared with the current state-of-the art.

Keywords: smart grid; fault location; distribution networks; high impedance faults; protection coordination (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/9/2331/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/9/2331/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:9:p:2331-:d:355100

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().