A Fault-Location Method for 12-Phase Transmission Lines Based on Twelve-Sequence-Component Method

Fan, Chunju; Liu, Ling; Tian, Yu

doi:10.1109/tpwrd.2010.2079337

Cited by 34 publications

(32 citation statements)

References 14 publications

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“…The algorithms are developed in phase-components which avoid the cumbersome transformation to high phase order sequence components as in [4] and make them suitable for symmetrical and unsymmetrical transmission lines. The proposed method can be easily extended to multiple-circuit (more than four-circuit) lines.…”

Section: Resultsmentioning

confidence: 99%

“…Recently, doublecircuit HV transmission lines have become very common in many countries. Four-circuit transmission lines, which are also known as quadruple transmission lines in a single tower, are used more and more widely in Asian countries such as Malaysia, India, Kuwait and China [1][2][3][4][5]. The main advantage of using a four-circuit transmission line is that it helps to solve the environmentally related problems such as earth geography and land availability.…”

Section: Introductionmentioning

confidence: 99%

“…This will, however, affect the accuracy of fault location for long lines. Another commonly used simplifying assumption is that the line is fully transposed and thus using sequence component analysis [4,[11][12][13]15,[18][19][20][21][22]. This will result in fault location errors if the line is untransposed, as is the case with most lines in practice.…”

Section: Introductionmentioning

confidence: 99%

“…Even though many papers are published in fault location in double-circuit transmission lines, the authors have found only one paper for fault location in four-parallel transmission lines [4]. The method in [4] uses 12-sequence component analysis and hence is suitable only for transposed lines.…”

Section: Introductionmentioning

confidence: 99%

“…The method in [4] uses 12-sequence component analysis and hence is suitable only for transposed lines. Also it computes fault location using lumped parameter model and uses measurements from both ends of the line.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

One-end fault location method for untransposed four-circuit transmission lines

Ngu

Ramar

Eisa

2012

International Journal of Electrical Power & Energy Systems

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

One-end fault location method for untransposed four-circuit transmission lines

Ngu

Ramar

Eisa

2012

International Journal of Electrical Power & Energy Systems

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A cross-differential protection scheme for quadruple-circuit lines with asymmetric parameters

Liu

Tai

Fan

et al. 2015

Int. Trans. Electr. Energ. Syst.

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SUMMARYQuadruple-circuit lines with asymmetric parameters have been widely built to increase power transmission capacity. The asymmetric parameters of the lines lead to different current characteristics compared with traditional lines. A cross-differential protection scheme based on negative sequence fault current is proposed to overcome the deficiency of traditional protection scheme. The fault superimposed networks of quadruplecircuit lines are discussed to analyze the fault sequence currents of each line. Differential currents are deduced to form the relay criterion. The threshold values of protection are calculated according to characteristics of superimposed fault sequence currents. Corresponding operational logic is also introduced to ensure the stability and reliability of protection. Finally, the reliability of the proposed protection scheme is verified.

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A new fault location technique for four‐circuit series‐compensated transmission lines

Saber

2018

Int Trans Electr Energ Syst

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Summary This paper introduces a new fault location technique for two‐terminal four‐circuit series‐compensated untransposed transmission line utilizing synchronized phasor measurements. The proposed technique is formulated based on theory of transmission lines and Taylor series expansion of distributed parameter line model considering the mutual couplings between the parallel lines. The technique does not require the fault type and the equivalent impedance model of metal‐oxide varistor (MOV) and series capacitor. Firstly, two subroutines are derived to determine the true fault location assuming that the fault occurs on both sides of the series compensator (SC). After that, the true fault location is selected based on the fact that the equivalent impedance of the SC must have resistive and capacitive components. A 500‐kV system with four‐circuit series‐compensated line is simulated in DIgSILENT Power Factory software while the fault location calculations are implemented in MATLAB. The proposed technique is investigated under different fault resistances and locations as well as all fault types including inter‐circuit faults. In addition, the effect of complex fault impedance, variation of earth resistivity, synchrophasors errors, and errors in line parameters is checked. The simulation study assures the validation of the technique for all simulated fault cases.

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A Fault-Location Method for 12-Phase Transmission Lines Based on Twelve-Sequence-Component Method

Cited by 34 publications

References 14 publications

One-end fault location method for untransposed four-circuit transmission lines

One-end fault location method for untransposed four-circuit transmission lines

A cross-differential protection scheme for quadruple-circuit lines with asymmetric parameters

A new fault location technique for four‐circuit series‐compensated transmission lines

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