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Title: Systems and methods for identifying faulted segments in multiphase power networks

Abstract

Systems and methods for identifying faulted segment(s) in a multiphase power network may include receiving a current measurement that was measured during a fault, obtaining a set of equivalent sequence impedances for the segments, building a set of sequence bus impedance matrices, selecting a segment, calculating coefficients for the segment based on the set of equivalent sequence impedances for the segment and the sequence bus impedance matrices, calculating an estimated per unit fault distance for the segment based at least partially on the current measurement and the coefficients, identifying the segment as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one, and repeating for each of the segments the calculating coefficients, calculating an estimated per unit fault distance, and identifying as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one.

Inventors:
;
Issue Date:
Research Org.:
ABB Inc., Cary, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600424
Patent Number(s):
10514412
Application Number:
15/174,687
Assignee:
ABB Inc. (Cary, NC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
H - ELECTRICITY H02 - GENERATION H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
DOE Contract Number:  
OE0000547
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/06/2016
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Kang, Ning, and Mousavi, Mirrasoul. Systems and methods for identifying faulted segments in multiphase power networks. United States: N. p., 2019. Web.
Kang, Ning, & Mousavi, Mirrasoul. Systems and methods for identifying faulted segments in multiphase power networks. United States.
Kang, Ning, and Mousavi, Mirrasoul. Tue . "Systems and methods for identifying faulted segments in multiphase power networks". United States. https://www.osti.gov/servlets/purl/1600424.
@article{osti_1600424,
title = {Systems and methods for identifying faulted segments in multiphase power networks},
author = {Kang, Ning and Mousavi, Mirrasoul},
abstractNote = {Systems and methods for identifying faulted segment(s) in a multiphase power network may include receiving a current measurement that was measured during a fault, obtaining a set of equivalent sequence impedances for the segments, building a set of sequence bus impedance matrices, selecting a segment, calculating coefficients for the segment based on the set of equivalent sequence impedances for the segment and the sequence bus impedance matrices, calculating an estimated per unit fault distance for the segment based at least partially on the current measurement and the coefficients, identifying the segment as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one, and repeating for each of the segments the calculating coefficients, calculating an estimated per unit fault distance, and identifying as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {12}
}

Works referenced in this record:

Method and Device of Fault Location for Distribution Networks
patent-application, May 2002


Method for detecting line-to-line fault location in power network
patent-application, May 2005


System and Method for Locating Line Faults in a Medium Voltage Network
patent-application, February 2011


Fault Analysis in Electric Networks Having a Plurality of Multi-Phase Buses
patent-application, February 2014