Fault location method for transmission grids based on time difference of arrival of wide area travelling wave

Chen, Rui; Yin, Xianggen; Li, Yilin

doi:10.1049/joe.2018.8459

Cited by 7 publications

(4 citation statements)

References 18 publications

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“…∂X (see (28)) is the Jacobian matrix, R is the measurement covariance matrix and t is the counter of iterations. The nonzero components of J can be obtained as (29)- (40).…”

Section: Proposed Methods Formulationmentioning

confidence: 99%

“…Wide area fault location methods propose solution that finds the location of the fault with restricted number of measurements that are not obtained from the faulted line directly. These methods are classified into two groups: Traveling wave based [24][25][26][27][28] and impedance based. [29][30][31][32][33][34][35][36][37][38][39] Traveling wave based methods require high sampling rates for measurements whereas impedance-based methods need much lower rates.…”

Section: In This Condition Accuratementioning

confidence: 99%

“…At the beginning the equation set of (24) is formed using (20)-(23), (11)-(12), (15)- (16) and 18- (19) which the magnitude and phase angle of the differences between pre-and post-fault extracted phasors in previous step are considered on their left hand side of(20)- (23).If the synchronized measurement is not possible in a bus, the angle related rows in (24) are omitted. Then the Jacobian matrix (see (28)) elements are calculated using (29)-(40) which (11)-(12), (15)- (16), and (18)- (19) are again used in them. In this way the Gauss-Newton can be applied according to (26)- (27) and its iterative process of calculating the unknown vector (X) is repeated until the error of its first element (x) which is defined the FL between two consecutive iteration exceeds a predefined value which usually is considered in range of 1e-3 to 1e-6.…”

Section: Fl Estimation Error %mentioning

confidence: 99%

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Wide area impedance‐based fault location using synchronized/unsynchronized current measurements

Chafi

Afrakhte

2020

Int Trans Electr Energ Syst

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Global positioning system (GPS) as an advanced technology provides synchronized measurements through the network. In spite of enhancing measurement accuracy provided by GPS, losing its signal, using slow communication link for measurement or lack of essential infrastructure for synchronized sampling make the synchronized measurement unavailable across the grid. In these conditions some fault location algorithms are not applicable and some others eliminate the corresponding measurements in their fault location process. However valuable information lies in the eliminated measurements magnitude which can improve the fault location accuracy. In this paper a system of equations is developed based on magnitudes of all current measurements and phase angle of synchronized current measurements. Then it is solved using an iterative approach with the aim of finding the location of the fault. To obtain more accurate results the distributed parameter model of line is used. The proposed method is validated by WSCC 9 bus and IEEE 39 bus test systems. The results reveal accurate estimation even in conditions that the synchronized measurements are not available in the grid entirely.

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“…∂X (see (28)) is the Jacobian matrix, R is the measurement covariance matrix and t is the counter of iterations. The nonzero components of J can be obtained as (29)- (40).…”

Section: Proposed Methods Formulationmentioning

confidence: 99%

Section: In This Condition Accuratementioning

confidence: 99%

Section: Fl Estimation Error %mentioning

confidence: 99%

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Wide area impedance‐based fault location using synchronized/unsynchronized current measurements

Chafi

Afrakhte

2020

Int Trans Electr Energ Syst

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“…Different from the fault location method of the transmission grids [6], [7], there are still some problems of fault location in active distribution networks. Generally speaking, the methods of fault location can be divided into three categories: the impedance-based methods [8]- [10], the traveling wave-based methods [11]- [15] and the machine learning-based methods [16]. In [8], an improved impedance The associate editor coordinating the review of this manuscript and approving it for publication was Huai-Zhi Wang .…”

Section: Introductionmentioning

confidence: 99%

Novel Fault Location for High Permeability Active Distribution Networks Based on Improved VMD and S-transform

Zhao

Xie

et al. 2021

IEEE Access

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Aiming at the problem of the inaccurate fault location in high-permeability active distribution network, a novel method of fault location for active distribution network based on improved variational mode decomposition (IVMD) and S-transform is proposed in this paper. Firstly, the judgment method of instantaneous frequency is adopted to determine the value of decomposition layers k. Meanwhile the algorithm of variational mode decomposition (VMD) is utilized to decompose the fault signal of traveling wave. Then, the kurtosis criterion is employed to select the appropriate intrisic mode functions (IMFS) for S-transform in order to obtain the S-matrix with higher resolution. The high-frequency components in the matrix are extracted to determine the arrival time for the head of the fault traveling wave. Finally, the fault distance can be calculated by the special distance formula without considering the velocity of the traveling wave. The simulations show that the proposed method can accurately measure the fault distance for the transmission lines in high permeability active distribution network, and the measurement error is limited within 200m, which verifies the accuracy and effectiveness of the proposed algorithm.INDEX TERMS Active distribution network, fault location, fault traveling wave, improved variational mode decomposition (IVMD), S-transform.

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Proposing a new ultra-high speed algorithm for the fault type classification in power transmission lines

Allahabadi

Hasheminejad

2021

Electric Power Systems Research

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Fault location method for transmission grids based on time difference of arrival of wide area travelling wave

Cited by 7 publications

References 18 publications

Wide area impedance‐based fault location using synchronized/unsynchronized current measurements

Wide area impedance‐based fault location using synchronized/unsynchronized current measurements

Novel Fault Location for High Permeability Active Distribution Networks Based on Improved VMD and S-transform

Proposing a new ultra-high speed algorithm for the fault type classification in power transmission lines

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