Single-ended multi-method phasor-based approach for optimized fault location on transmission lines

Lopes, Felipe V.; Leite, Eduardo Jorge Silva; Ribeiro, João Paulo; Piardi, Artur B.; Scheid, Allan V.; Zat, Guilherme; Espinoza, Renzo G. Fabián

doi:10.1016/j.epsr.2022.108361

Cited by 19 publications

(4 citation statements)

References 8 publications

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“…For the large impedance will change more non-linearly, in other words the small impedance will make the characteristic linear and all constant. In this paper, the characteristic equation used is the form of the fifth-order equation in the general form [32,34]:…”

Section: The Proposed Fault Location Methodsmentioning

confidence: 99%

“…The authors in [31] applied an impedancebased method to design and implement a real-time fault location experimental system for teaching and training universities in which voltage and current measurements at the monitoring point are recorded to determine the distance to the fault. The approach based on the phasor measurement of a real digital fault recorder was proposed in [32]. This method was developed for transmission lines, and it has the advantage of providing a reliable search field which can be utilized to optimize line inspection procedures.…”

Section: Signal Processing Techniquesmentioning

confidence: 99%

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A new method for estimating fault location in radial medium voltage distribution network only using measurements at feeder beginning

2024

Archives of Electrical Engineering

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This paper proposes a new fault location method in radial medium voltage distribution networks. The proposed method only uses the measurement data at the feeder beginning to approximate the characteristic equation showing the dependence between the positive-sequence voltage and phase angle at the monitoring point with the distance to the fault location for each fault type on each line segment. To determine these characteristic equation coefficients, the entire distribution network will be modeled and simulated by four types of faults at different locations along the lines to build the initial database. Based on this database, the mathematical functions in MATLAB software are applied to approximate these coefficients corresponding to each type of fault for each line segment in the network. Then, from the current and voltage measurement data at the feeder beginning, the algorithms of global search, comparison, and fault ranking are used to find out where the fault occurs on the distribution network. Two types of distribution network with and without branches are studied and simulated in this paper to verify and evaluate the effectiveness of the proposed method.

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Section: The Proposed Fault Location Methodsmentioning

confidence: 99%

Section: Signal Processing Techniquesmentioning

confidence: 99%

A new method for estimating fault location in radial medium voltage distribution network only using measurements at feeder beginning

2024

Archives of Electrical Engineering

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“…W Some asynchronous algorithms [18], [19] can be used to calculate or eliminate synchronous angles when dual-ended data are not synchronized. However, in certain situations such as the absence of communication channels or measurement equipment failure at the remote end [20], single-ended methods have distinct advantages. It has advantages of cost-effectiveness, simplicity, and compatibility with existing monitoring systems.…”

Section: ⅰ Introductionmentioning

confidence: 99%

Single-Ended Time Domain Fault Location Based on Transient Signal Measurements of Transmission Lines

Luo,

Liu,

Cui

et al. 2024

Prot. Control Mod. Power Syst.

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Precise fault location plays an important role in the reliability of modern power systems. With the increasing penetration of renewable energy sources, the power system experiences a decrease in system inertia and alterations in steady-state characteristics following a fault occurrence. Most existing single-ended phasor domain methods assume a certain impedance of the remote-end system or consistent current phases at both ends. These problems present challenges to the applicability of conventional phasor-domain location methods. This paper presents a novel single-ended time domain fault location method for single-phase-to-ground faults, one which fully considers the distributed parameters of the line model. The fitting of transient signals in the time domain is realized to extract the instantaneous amplitude and phase. Then, to eliminate the error caused by assumptions of lumped series resistance in the Bergeron model, an improved numerical derivation is presented for the distributed parameter line model. The instantaneous symmetrical components are extracted for decoupling and inverse transformation of three-phase recording data. Based on the above, the equation of instantaneous phase constraint is established to effectively identify the fault location. The proposed location method reduces the negative effects of fault resistance and the uncertainty of remote end parameters when relying on one-terminal data for localization. Additionally, the proposed fault analysis methods have the ability to adapt to transient processes in power systems. Through comparisons with existing methods in three different systems, the fault position is correctly identified within an error of 1%. Also, the results are not affected by sampling rates, data windows, fault inception angles, and load conditions.

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“…Although a short circuit rarely occurs during a power system operation process, it is one of the most extremely serious errors. A short circuit is caused by many different sources and has a lot of effect on the power system [4][5][6], such as blackout, instability, interruption, etc.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Real-time Fault Location Experimental System for Teaching and Training University Students

Khoa

Tung

2023

Int. j. electr. comput. eng. syst. (Online)

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The fault location problem is one of the most important issues in power system operation and control. To obtain an experimental system for teaching and training electrical engineering students, this paper performed a study to design and implement a real-time fault location laboratory-scale model from practical hardware components. The impedance-based fault location method is embedded in the system to determine the distance to fault in the transmission line. Furthermore, the monitoring and controlling program is designed by the Matlab App Designer – A new professional app to create the graphical user interface and use the integrated editor quickly. Several fault types including three-phase fault, phase-to-phase fault, phase-to-ground fault are created to evaluate the performance of the fault location experimental system. The real-time measurement results which are acquired and observed on the user guide interface of the program confirm the effectiveness of the experimental system; therefore, the system can be considered a powerful tool for electrical engineering students.

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Single-ended multi-method phasor-based approach for optimized fault location on transmission lines

Cited by 19 publications

References 8 publications

A new method for estimating fault location in radial medium voltage distribution network only using measurements at feeder beginning

A new method for estimating fault location in radial medium voltage distribution network only using measurements at feeder beginning

Single-Ended Time Domain Fault Location Based on Transient Signal Measurements of Transmission Lines

Design and Implementation of Real-time Fault Location Experimental System for Teaching and Training University Students

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