Accurate and economical traveling-wave fault locating without communications

Guzmán, Armando; Kasztenny, B.; Tong, Yajian; Mynam, Mangapathirao V.

doi:10.1109/cpre.2018.8349768

Cited by 39 publications

(24 citation statements)

References 6 publications

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“…Traveling waves of current are being used to identify the reflections from the fault location, other end of TL or any discontinuity within TL [126][127][128][129]. TWs of the neighboring stations can be eradicated with the help of reference data train of TWs generated from the external faults, line energization and auto reclosing and, switching of capacitor banks.…”

Section: Practical Realization Of Traveling Wave (Tw) Based Commerciamentioning

confidence: 99%

“…The distance between sensing terminal and the fault point is calculated with the help of propagation time and velocity of TWs. Arrival time is determined by using differentiator smoother [127,128]. In differential smoother, leading edge is tracked by excluding signal distortion and allowing interpolation between samples.…”

Section: Practical Realization Of Traveling Wave (Tw) Based Commerciamentioning

confidence: 99%

“…In a single end measurement-based method, time difference between first TW and successive reflected TWs are utilized for estimation of fault location. Sorting out of TWs is required when sensing terminals (VSCs) are closer compared to the distance between fault and sensing terminal of TL [127,128]. Single end fault locator (SEFL) based on TWs is developed by Schweitzer et al for HVdc system in 1984 [128].…”

Section: Practical Realization Of Traveling Wave (Tw) Based Commerciamentioning

confidence: 99%

“…Sorting out of TWs is required when sensing terminals (VSCs) are closer compared to the distance between fault and sensing terminal of TL [127,128]. Single end fault locator (SEFL) based on TWs is developed by Schweitzer et al for HVdc system in 1984 [128]. SEFL separates the incident and reflected TWs for dc fault estimation.…”

Section: Practical Realization Of Traveling Wave (Tw) Based Commerciamentioning

confidence: 99%

See 3 more Smart Citations

MT–HVdc Systems Fault Classification and Location Methods Based on Traveling and Non-Traveling Waves—A Comprehensive Review

et al. 2019

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Estimation of fault classification and location in a multi-terminal high voltage direct current (MT–HVdc) transmission system is a challenging problem and is considered to be a fundamental maneuver of dc grid protection. This research paper critically reviews traveling and non-travelling wave methods of classification and location of dc faults in multi-terminal HVdc transmission systems. Detailed mathematical analysis of MT–HVdc systems composed of high grounding resistance, cable and overhead line segments, and bipolar coupled transmission network under healthy and faulty conditions, are evaluated. The gravity of this research paper addresses benefits and shortcomings of traveling and non-traveling wave methods and futuristic techniques of fault classification and location.

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Section: Practical Realization Of Traveling Wave (Tw) Based Commerciamentioning

confidence: 99%

Section: Practical Realization Of Traveling Wave (Tw) Based Commerciamentioning

confidence: 99%

Section: Practical Realization Of Traveling Wave (Tw) Based Commerciamentioning

confidence: 99%

Section: Practical Realization Of Traveling Wave (Tw) Based Commerciamentioning

confidence: 99%

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MT–HVdc Systems Fault Classification and Location Methods Based on Traveling and Non-Traveling Waves—A Comprehensive Review

et al. 2019

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“…Fault information is included in the waves traveling toward both ends. Furthermore, traveling wave-based methods can provide accurate fault location in shorter time frames [4,5], which also make them suitable for DC systems [6].…”

Section: Introductionmentioning

confidence: 99%

The Half-Sine Method: A New Accurate Location Method Based on Wavelet Transform for Transmission-Line Protection from Single-Ended Measurements

2019

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In this work, a new and accurate method based on the wavelet transform is proposed for fault location in transmission-line systems. The proposed wavelet method consists of the analysis of the transient signal measured at a single end of the transmission line. Aerial current modes are used, and zero modes are included in the fault-detection scheme for low fault-inception angles. The fault distance is evaluated using the wavelet modulus maxima technique and a method based on the response to a half-sine voltage is proposed to overcome drawbacks arising from the limited sampling frequency and low fault-inception angle. The fault distance is calculated using the difference between the time when a 100 kHz half-sine signal is sent and the time when the derivative signal is received. The proposed algorithm is tested considering harmonic distortion and varying fault resistance, ground resistivity, location and inception angle. The high accuracy of the proposed algorithm is obtained even for faults close to the bus and low inception angles.

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A fault‐location algorithm for parallel line based on the long short‐term memory model using the distributed parameter line model

Taheri

Salehimehr

Sedighizadeh

2021

Int Trans Electr Energ Syst

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Summary Parallel transmission lines are widely used in modern power systems due to their ability to increase power transmission and reliability of the power network. However, due to these networks' complexity, fault locating is a potential problem in these types of systems. Besides, when the wind farms enter these systems, a new challenge will be created for the fault location (FL) techniques; and the reason is that the impedance continuously varies in wind power plants. This paper proposes a novel FL algorithm for parallel transmission lines using the distributed parameter line model. This method uses long short‐term memory networks for estimating source impedance and other network parameters. The algorithm shows accurate performance during noisy conditions and precisely determines the fault distance during both three‐phase and single‐phase faults. The presented method is implemented using PSCAD and Python software. The simulation results illustrate the applicability of the proposed method to estimate FL in the presence of wind farms in the system.

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Accurate and economical traveling-wave fault locating without communications

Cited by 39 publications

References 6 publications

MT–HVdc Systems Fault Classification and Location Methods Based on Traveling and Non-Traveling Waves—A Comprehensive Review

MT–HVdc Systems Fault Classification and Location Methods Based on Traveling and Non-Traveling Waves—A Comprehensive Review

The Half-Sine Method: A New Accurate Location Method Based on Wavelet Transform for Transmission-Line Protection from Single-Ended Measurements

A fault‐location algorithm for parallel line based on the long short‐term memory model using the distributed parameter line model

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