Locating sub-cycle faults in distribution network applying half-cycle DFT method

Chen, Po-Chen; Malbaša, Vuk; Kezunovic, Mladen

doi:10.1109/tdc.2014.6863254

Cited by 11 publications

(14 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It appears, however, that these methods have not been used to improve voltage sag based fault location to cope with sub-cycle faults in distribution networks. In [32], authors show that the sub-cycle faults (greater than 0.5 cycle) can be located accurately with the proposed method when no measurement imperfections [33] (e.g. magnitude and phase errors) are present.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity of voltage sag based fault location in distribution network to sub-cycle faults

Chen

Malbaša

Dokic

et al. 2014

2014 North American Power Symposium (NAPS)

Self Cite

View full text Add to dashboard Cite

Single-phase-to-ground sub-cycle faults in the distribution network can be located using voltage sag fault location. This paper illustrates how a sensitivity study of measurement imperfections can be used to quantify the impact of sub-cycle faults on voltage sag based fault location. Our results suggest that there is a complex relationship between factors influencing error in fault location because the design of the study covered a wide range of conditions. The more complicated, higher order interactions have a stronger influence on error than any particular input factor alone.

show abstract

Section: Introductionmentioning

confidence: 99%

Sensitivity of voltage sag based fault location in distribution network to sub-cycle faults

Chen

Malbaša

Dokic

et al. 2014

2014 North American Power Symposium (NAPS)

Self Cite

View full text Add to dashboard Cite

show abstract

“…These methods require extensive training (and retraining if the system topology changes) to accommodate for all possible fault scenarios. Techniques that can benefit from devices installed along the system such as smart meters or fault indicators have been reported [11,12]. Usually these methods define the closest bus to the fault point instead of the actual fault position.…”

Section: Introductionmentioning

confidence: 99%

“…Usually these methods define the closest bus to the fault point instead of the actual fault position. In [11], a method based on matching the recorded voltage sag and the calculated voltage sag simulated at all system nodes was presented: the system node with the highest match is considered to be the faulty or closest node to the fault point. The benefit behind the method is the ability to locate subcycle faults.…”

Section: Introductionmentioning

confidence: 99%

A double end fault location technique for distribution systems based on fault-generated transients

Aboshady

Sumner

Thomas

2017

2017 IEEE 26th International Symposium on Industrial Electronics (ISIE)

View full text Add to dashboard Cite

A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. Abstract-This paper presents a fault location technique for distribution systems. It is a two end impedance based technique that uses the fault generated transients to estimate the fault distance over a broad range of frequencies. Then, curve fitting is applied to find the final estimated fault distance. Firstly, the paper introduces the method for the system represented as a lumped RL model. Then, generalized to consider the distribution line capacitance. The technique accounts for presence of loading taps, heterogeneous feeder sections, single phase, two phase and three phase loads and unbalance in distribution system. Single line to ground, line to line, and three phase faults are considered at different fault resistance values up to 100 Ω. Also, the effect of fault inception angle and resolution of analogue to digital converter is investigated. IEEE 34 nodes system is used to evaluate the proposed method.

show abstract

“…Different fault analysis methods have been proposed in the literature either as a separate fault detection, classification, and location functions or as a complete fault analysis tool [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. A group of methods are developed, considering line impedance calculation [8][9][10][11][12][13][14][15][16][17], while several others are based on high-frequency transients, traveling waves, and wavelet-based methods [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…A group of methods are developed, considering line impedance calculation [8][9][10][11][12][13][14][15][16][17], while several others are based on high-frequency transients, traveling waves, and wavelet-based methods [18][19][20][21]. Regardless of different schemes presented in these works, the advantages of high-frequency based methods are the high accuracy and fast decision making.…”

Section: Introductionmentioning

confidence: 99%

Transmission line relay mis-operation detection based on time-synchronized field data

Esmaeilian

Popović

Kezunovic

2015

Electric Power Systems Research

Self Cite

View full text Add to dashboard Cite

a b s t r a c tIn this paper, a real-time tool to detect transmission line relay mis-operation is implemented. The tool uses time-synchronized measurements obtained from both ends of the line during disturbances. The proposed fault analysis tool comes into the picture only after the protective device has operated and tripped the line. The proposed methodology is able not only to detect, classify, and locate transmission line faults, but also to accurately confirm whether the line was tripped due to a mis-operation of protective relays. The analysis report includes either detailed description of the fault type and location or detection of relay mis-operation. As such, it can be a source of very useful information to support the system restoration. The focus of the paper is on the implementation requirements that allow practical application of the methodology, which is illustrated using the field data obtained the real power system. Testing and validation is done using the field data recorded by digital fault recorders and protective relays. The test data included several hundreds of event records corresponding to both relay mis-operations and actual faults. The discussion of results addresses various challenges encountered during the implementation and validation of the presented methodology.

show abstract

Locating sub-cycle faults in distribution network applying half-cycle DFT method

Cited by 11 publications

References 26 publications

Sensitivity of voltage sag based fault location in distribution network to sub-cycle faults

Sensitivity of voltage sag based fault location in distribution network to sub-cycle faults

A double end fault location technique for distribution systems based on fault-generated transients

Transmission line relay mis-operation detection based on time-synchronized field data

Contact Info

Product

Resources

About