Non-linear high impedance fault distance estimation in power distribution systems: A continually online-trained neural network approach

2018 ◽  
Vol 157 ◽  
pp. 20-28 ◽  
Author(s):  
Patrick E. Farias ◽  
Adriano Peres de Morais ◽  
Jean Pereira Rossini ◽  
Ghendy Cardoso
Keyword(s):  
Neural Network ◽  
Power Distribution ◽  
Distribution Systems ◽  
Distance Estimation ◽  
Power Distribution Systems ◽  
Network Approach ◽  
Neural Network Approach ◽  
High Impedance ◽  
High Impedance Fault ◽  
Trained Neural Network

scholarly journals Complete power distribution system representation and state determination for fault location

DYNA ◽  
2015 ◽  
Vol 82 (192) ◽  
pp. 141-149 ◽  
Author(s):  
Andres Felipe Panesso-Hernández ◽  
Juan Mora-Flórez ◽  
Sandra Pérez-Londoño
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Fault Location ◽  
Estimation Error ◽  
Distance Estimation ◽  
Power Distribution Systems ◽  
Line Load ◽  
Power Distribution System ◽  
Line Section

<p>The impedance-based approaches for fault location in power distribution systems determine a faulted line section. Next, these require of the estimation of the voltages and currents at one or both section line ends to exactly determine the fault location. It is a challenge because in most of the power distribution systems, measurements are only available at the main substation.  This document presents a modeling proposal of the power distribution system and an easy implementation method to estimate the voltages and currents at the faulted line section, using the measurements at the main substation, the line, load, transformer parameters and other serial and shunt connected devices and the power system topology. The approach here proposed is tested using a fault locator based on superimposed components, where the distance estimation error is lower than 1.5% in all of the cases. </p>

scholarly journals High-Impedance Faults in Power Distribution Systems: A Narrative of the Field's Developments

2020 ◽  
Author(s):  
Douglas Pinto Sampaio Gomes ◽  
Cagil Ozansoy
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Historical Narrative ◽  
Power Distribution Systems ◽  
Knowledge Gaps ◽  
High Impedance ◽  
High Impedance Faults

High-impedance faults in power distribution systems is a lasting problem with decades of steady investigation. Due to the complexity of the problem, the field can also be challenging to navigate. Although there exist surveys of the field in the literature, it is not easy to find a comprehensive contextualization of how and when the field developments unfolded. This paper presents the historical narrative of the progress and developments based on the most cited papers since the inception of the field. The accounts are not limited to archaic and obsolete works. They are all contextualized from the seminal papers to contemporary methods and related technology. Quantitative figures on the survey of the methods and relevant knowledge gaps are also discussed at the closing of the paper.

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