Permanent Fault Location in Distribution System Using Phasor Measurement Units (PMU) in Phase Domain

This paper proposes a new method for locating high impedance fault in distribution systems using phasor measurement units (PMUs) installed at certain locations of the system. To implement this algorithm, at first a new method is suggested for the placement of PMUs. Taking information from the units, voltage and current of the entire distribution system are calculated. Then, the two buses in which the fault has been occurred is determined, and location and type of the fault are identified. The main characteristics of the proposed method are: the use of distributed parameter line model in phase domain, considering the presence of literals, and high precision in calculating the high impedance fault location. The results obtained from simulations in EMTP-RV and MATLAB software indicate high accuracy and independence of the proposed method from the fault type, fault location and fault resistance compared to previous methods, so that the maximum observed error was less than 0.15%

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Automatic Fault Location on Distribution Networks Using Synchronized Voltage Phasor Measurement Units

Volume 2: Simple and Combined Cycles; Advanced Energy Systems and Renewables (Wind, Solar and Geothermal); Energy Water Nexus; Thermal Hydraulics and CFD; Nuclear Plant Design, Licensing and Construction; Performance Testing and Performance Test Codes; Student Paper Competition ◽

10.1115/power2014-32231 ◽

2014 ◽

Cited By ~ 5

Author(s):

Jonathan Lee

Keyword(s):

Distribution System ◽

Fault Location ◽

Low Cost ◽

Distribution Networks ◽

Phasor Measurement Units ◽

Test Case ◽

Total Load ◽

Phasor Measurement ◽

Service Restoration ◽

Measurement Units

Automatic fault location on the distribution system is a necessity for a resilient grid with fast service restoration after an outage. Motivated by the development of low cost synchronized voltage phasor measurement units (PMUs) for the distribution system, this paper describes how PMU data during a fault event can be used to accurately locate faults on the primary distribution system. Rather than requiring many specialized line sensors to enable fault location, the proposed approach leverages a PMU data stream that can be used for a variety of applications, making it easier to justify the investment in fault location. The accuracy of existing automatic fault location techniques are dependent either on dense deployments of line sensors or unrealistically accurate models of system loads. This paper demonstrates how synchronized voltage measurements enable sufficiently accurate fault location with relatively few instrumentation devices and relatively low fidelity system models. The IEEE 123 bus distribution feeder is examined as a test case, and the proposed algorithm is demonstrated to be robust to variations in total load and uncertainty in the response of loads to voltage sags during a sample set of varied fault conditions.

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High Impedance Fault Detection of Distribution Network by Phasor Measurement Units

Smart Grid and Renewable Energy ◽

10.4236/sgre.2013.43036 ◽

2013 ◽

Vol 04 (03) ◽

pp. 297-305 ◽

Cited By ~ 10

Author(s):

Mohsen Ghalei Monfared Zanjani ◽

Hossein Kazemi Karegar ◽

Hasan Ashrafi Niaki ◽

Mina Ghalei Monfared Zanjani

Keyword(s):

Fault Detection ◽

Distribution Network ◽

Phasor Measurement Units ◽

High Impedance ◽

Phasor Measurement ◽

High Impedance Fault ◽

Measurement Units

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Advanced Distribution Measurement Technologies and Data Applications for Smart Grids: A Review

Energies ◽

10.3390/en13143730 ◽

2020 ◽

Vol 13 (14) ◽

pp. 3730 ◽

Cited By ~ 2

Author(s):

Antonio E. Saldaña-González ◽

Andreas Sumper ◽

Mònica Aragüés-Peñalba ◽

Miha Smolnikar

Keyword(s):

Distribution System ◽

Smart Grids ◽

Distribution Systems ◽

Distribution Networks ◽

Phasor Measurement Units ◽

Distribution Grid ◽

Smart Meters ◽

Phasor Measurement ◽

Power Quality Monitoring ◽

Measurement Units

The integration of advanced measuring technologies in distribution systems allows distribution system operators to have better observability of dynamic and transient events. In this work, the applications of distribution grid measurement technologies are explored in detail. The main contributions of this review are: (a) a comparison of eight advanced measurement devices for distribution networks, based on their technical characteristics, including reporting periods, measuring data, precision, and sample rate; (b) a review of the most recent applications of micro-Phasor Measurement Units, Smart Meters, and Power Quality Monitoring devices used in distribution systems, considering different novel methods applied for data analysis; and (c) an input-output table that relates measured quantities from micro-Phasor Measurement Units and Smart Meters needed for each specific application found in this extensive review. This paper aims to serve as an important guide for researches and engineers studying smart grids.

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