Reproduction Methodology for Single Phase-to-Ground Faults in Overhead Transmission Lines

Liang, Hanqing; Liu, Yadong; Sheng, Gehao; Jiang, Xiuchen

doi:10.1109/access.2017.2740955

Cited by 11 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Step by Equations (2) and 3, and the initial traveling wave arrival time of each substation is detected.…”

Section: Implementation Of the Proposed Fault Location Methodsmentioning

confidence: 99%

“…Daubechies-4 (db4) Discrete Wavelet Transform (DWT) is used to transform the transient voltage samples based on the research of traveling wave transmission paths because of its prominent characteristic of time-translation invariance. The first peak shown in the detail-1 signal of the DWT is corresponding to the arrival time of the fault initial traveling wave at the detection device, which are obtained by observing wavelet transformation coefficient squared (WTC 2…”

Section: Volume XX 2017mentioning

confidence: 99%

“…With the rapid development of smart grids, the capacity of power systems and the area of power grids are constantly being expanded, resulting in more complicated power grid operation management [1,2]. The fault location is quickly and accurately determined after a transmission line failure, which not only reduce the burden of patrolling the line and repair the line in time to achieve the purpose of ensuring reliable power supply, but also reduce the overall economic loss caused by power outages.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Novel Traveling Wave Fault Location Method for Transmission Network Based on Directed Tree Model and Linear Fitting

Zeng

Zhang

et al. 2020

IEEE Access

View full text Add to dashboard Cite

In order to solve the problem of inaccurate fault location in the transmission network under some abnormal conditions, such as traveling wave location device faults, startup failure and time recording error, a novel traveling wave fault location method based on directed tree model and linear fitting is proposed. A directed tree model of the fault traveling wave transmission along the shortest path is established based on graph theory analysis of traveling wave transmission network. Two straight lines are fitted on the coordinate plane where the accurate fault location is obtained direct by coordinate information of the intersection of these two fitted straight lines (FSLs), according to the transmission characteristics of the fault traveling wave in the directed tree model. The wave velocity is used as the slope of the fitted straight line, and the influence of its uncertainty on the fault location is eliminated. The time record error points of the location device are automatically eliminated in the linear fitting. PSCAD simulation results prove that fault information of the entire transmission network is comprehensively utilized by the proposed method and the ring network is automatically unlooped. The reliability and accuracy of fault location are remarkably improved, particularly for the fault scenarios with recorded information abnormity. INDEX TERMS Transmission network, fault location, traveling wave, directed tree model, linear fitting.

show abstract

“…Step by Equations (2) and 3, and the initial traveling wave arrival time of each substation is detected.…”

Section: Implementation Of the Proposed Fault Location Methodsmentioning

confidence: 99%

Section: Volume XX 2017mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Novel Traveling Wave Fault Location Method for Transmission Network Based on Directed Tree Model and Linear Fitting

Zeng

Zhang

et al. 2020

IEEE Access

View full text Add to dashboard Cite

show abstract

“…When it occurs, the grounding current of distribution system goes beyond an upper limit [4], overvoltage is usually generated which endangers the insulation of distribution network and equipment [5]. More seriously, when the system operates in such a fault state, shock accident or casualties might happen [6,7], which represents a serious public safety hazard. Specifically, when a single-phase-to-ground fault occurs in non-effectively grounded system, it is difficult to be detected due to unobvious characteristics of fault current [8].…”

Section: Introductionmentioning

confidence: 99%

A Transient Voltage-based Approach for Mid-voltage Fault Detection through Low-voltage Sensors

ZHANG,

GUAN,

2024

Preprint

View full text Add to dashboard Cite

Single-phase-to-ground fault in non-effectively grounded systems poses serious public safety concern. Along with increasing deployment of low-voltage (LV) sensors, new opportunities and ways are created for solving this traditional problem in distribution systems. A new approach, identifying primary single-phase-to-ground line fault and locating it through measurement data from smart sensors deployed in the secondary side of distribution transformers, is proposed in this paper. When a fault occurs in primary distribution feeder, the transient aerial mode voltage (AMV) of each LV smart sensor is calculated. The fault line can be identified by an abrupt change value of AMV at LV side. Next, by finding the position of the maximum value of this AMV from LV sensors on the fault line, the fault location can be pinpointed to two neighboring distribution transformers. The proposed method has been proven to be efficient and reliable by simulation studies.

show abstract

“…Overhead power lines are vital links in electrical transmission and distribution networks. As they are usually operating under harsh environmental conditions, power lines are subjected to abnormal events such as wind gusts, snow accumulation, lightning, birds’ activities, and falling trees [1, 2]. Such events may lead to conductor swinging followed by short circuit faults.…”

Section: Introductionmentioning

confidence: 99%

Voltage–current technique to identify fault location within long transmission lines

Abu-Siada

Mosaad

Mir

2020

IET Generation, Transmission & Distribution

View full text Add to dashboard Cite

Reproduction Methodology for Single Phase-to-Ground Faults in Overhead Transmission Lines

Cited by 11 publications

References 24 publications

A Novel Traveling Wave Fault Location Method for Transmission Network Based on Directed Tree Model and Linear Fitting

A Novel Traveling Wave Fault Location Method for Transmission Network Based on Directed Tree Model and Linear Fitting

A Transient Voltage-based Approach for Mid-voltage Fault Detection through Low-voltage Sensors

Voltage–current technique to identify fault location within long transmission lines

Contact Info

Product

Resources

About