Fault Accurate Location Method in UHV GIL Based on Transient Voltage Travelling Wave

This template carries out a three-terminal accurate fault location method for distribute cable network. It is improved from type D principle fault location method. Radial distribution network is decomposed into T-type networks. A set of formulas based on three-terminal data can calculate fault distance and find fault branch. Only first transient wave heads is needed. Shorter transmission distance makes it more accurate to extract first wave heads with wavelet. The distributed measurement offers redundant transient voltage data. These data is fully used to improve location success rate and accuracy. The simulation result in ATP-EMTP shows that the location accuracy isnt influenced by wave speed, catadioptric wave, grounding resistance and initial fault phase angle.

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Application Research on Natural Frequency Method in Single Terminal Traveling Wave Fault Location

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.341-342.1393 ◽

2013 ◽

Vol 341-342 ◽

pp. 1393-1396

Author(s):

Li Gao ◽

Hong Chun Shu

Keyword(s):

Numerical Simulation ◽

Natural Frequency ◽

Traveling Wave ◽

Fault Location ◽

Travelling Wave ◽

Application Research ◽

Frequency Method ◽

Location Method ◽

Calculation Results

A method is provided to make natural frequency method be applied to single terminal traveling wave fault location in the paper. A group of fault distance suspected is calculated by single terminal method of traveling wave fault location method firstly, then deal with current travelling wave of fault by FFT to get the natural frequency reflecting fault location so that a fault distance can be calculated by it. Contrast the fault distance from natural frequency method and everyone of the group of fault distance suspected from single terminal method of traveling wave fault location method to determine the suspected fault distance closed to it is the calculation results we want. Numerical simulation shows the method can improve effectively the reliability of single terminal traveling wave fault location.

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Fault location method based on the periodicity of the transient voltage traveling wave

2004 IEEE Region 10 Conference TENCON 2004. ◽

10.1109/tencon.2004.1414789 ◽

2005 ◽

Cited By ~ 2

Author(s):

Li Yongli ◽

Zhang Yi ◽

Ma Zhiyu

Keyword(s):

Traveling Wave ◽

Fault Location ◽

Location Method ◽

Transient Voltage

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A travelling wave-based fault location method for hybrid three-terminal circuits

2015 IEEE Power & Energy Society General Meeting ◽

10.1109/pesgm.2015.7286247 ◽

2015 ◽

Cited By ~ 5

Author(s):

Reza Jalilzadeh Hamidi ◽

Hanif Livani

Keyword(s):

Fault Location ◽

Travelling Wave ◽

Location Method

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An Online Travelling Wave Fault Location Method for Unearthed-Operated High-Voltage Overhead Line Grids

IEEE Transactions on Power Delivery ◽

10.1109/tpwrd.2018.2816067 ◽

2018 ◽

Vol 33 (6) ◽

pp. 2776-2785 ◽

Cited By ~ 21

Author(s):

Roberto Benato ◽

Sebastian Dambone Sessa ◽

Michele Poli ◽

Cristiano Quaciari ◽

Giovanni Rinzo

Keyword(s):

High Voltage ◽

Fault Location ◽

Travelling Wave ◽

Overhead Line ◽

Location Method

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A Distribution Network Fault Location Method Based on Reverse Wave and Wavelet Analysis

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.713-715.1369 ◽

2015 ◽

Vol 713-715 ◽

pp. 1369-1372

Author(s):

Xue Ming Zhai ◽

Huan Xia ◽

Long An

Keyword(s):

Generating Functions ◽

Fault Location ◽

Single Phase ◽

Travelling Waves ◽

Distribution Network ◽

Travelling Wave ◽

Location Method ◽

Ground Fault ◽

Modulus Maximum ◽

Network Fault

Based on the analysis of the transient process of the electric line’s developing ground fault, this paper applies the oppositely-directed travelling wave fault location method to fault location in distribution network. Simultaneously, this paper chooses proper wavelet generating functions to find the modulus maximum of oppositely-directed travelling waves and summarizes the methods and steps of this oppositely-directed travelling wave fault location. Finally, PSCAD/EMTDC is used to simulate the single-phase ground fault to verify the oppositely-directed travelling wave fault location method.

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