Solution to directional relaying for double circuit line

Jena, Premalata; Pradhan, Ashok Kumar

doi:10.1109/iceas.2011.6147079

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…According to the characteristics of the matrix, the zero-sequence impedances can be picked out to obtain another similar matrix as shown in (4), where the zero-sequence impedance comes first. MatrixP is introduced to decouple the zero-sequence impedance matrix, where k u1 and k u2 stand for asymmetrical compensation coefficients formulated in (6). 0 I 1 1 2 0 1 I I 2 1 0 1 2 I I I 2 0 2 1 2 I V 1 I 1 II 1 III 1 IV 2 I 2 II 2 III 2 IV 3 3 3 3 3 3 3 3 3 3 3 3…”

Section: Decoupling Proceduresmentioning

confidence: 99%

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A new decoupling method for asymmetry‐parameter quadruple‐circuit lines on same tower

Liu

Fan

Tai

et al. 2015

IEEJ Transactions Elec Engng

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Quadruple‐circuit lines with different self‐impedances have been applied in power system with the development of power industry. However, the different self‐impedances in quadruple‐circuit lines will cause problems in fault analysis and related relay protection in the lines. The impedance matrix of these lines is different from that of symmetrical lines, and existing methods cannot completely eliminate all mutual impedance. A new method is proposed to decouple these asymmetrical quadruple‐circuits lines in this paper. The phase‐to‐phase mutual impedance is eliminated first, and then the line‐to‐line mutual impedance is eliminated according to the circulating current method. The mathematical deduction is formulated to ensure the complete decoupling of the impedance matrix. The fault conditions can be used to obtain the relationship between the independent sequence networks, which can be used to calculate the fault current. Power Systems Computer Aided Design (PSCAD) simulations indicate that the decoupling method is suitable for fault analysis of the quadruple‐circuit lines with different self‐impedances. The related fault analysis method is quite accurate and easy to be applied. The fault analysis accuracy is not affected by the fault resistance, fault type, fault location, or length of lines. © 2015 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Decoupling Proceduresmentioning

confidence: 99%

“…However, the traditional sequence component method cannot eliminate the mutual impedances in multiple‐circuit lines completely. Six‐sequence‐components method is proposed to eliminate the mutual impedances in double‐circuit transmission lines, and it has been widely used in the fault analysis of double‐circuit lines .…”

Section: Introductionmentioning

confidence: 99%

A new decoupling method for asymmetry‐parameter quadruple‐circuit lines on same tower

Liu

Fan

Tai

et al. 2015

IEEJ Transactions Elec Engng

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show abstract

“…Authors discuss the directional relaying schemes [19,20] for the DC3PT lines, classification scheme [21,22] for shunt faults in the DC3PT lines, the fault location schemes [23,24] under shunt faults for the DC3PT lines which have been demonstrated. Previous work [25] has shown the artificial neural network (ANN) technique for DC3PT line that provides direction relaying, classification, and location of faults.…”

Section: Introductionmentioning

confidence: 99%

A single-end directional relaying scheme for double-circuit transmission line using fuzzy expert system

Kumar

Sanjay

Chakravarthy³

2020

Complex Intell. Syst.

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The faults occurring in different sections are difficult to identify using the traditional techniques. This paper investigates a fuzzy expert system for directional relaying, classification, and location of faults in double-circuit transmission lines. The current magnitudes measured at only one terminal of the double-circuit transmission line are used to compute discreet Fourier coefficients. Thus, this scheme does not involve any communication channel. The presented fuzzy expert system is achieved from the structure of MAMDANI system in LabVIEW software. Test case studies show the effectiveness of the presented scheme. The simulation results attest that the directional relaying, classification, and location estimation is very accurate. This scheme is adaptive to the change of fault location, fault resistance, fault inception angle, and fault type.

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Series capacitor-compensated double-circuit transmission line directional relay system using a fuzzy expert system with a Haar wavelet

Kumar¹,

Sitharamaiah

Chakravarthy³

2022

Iran J Comput Sci

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Solution to directional relaying for double circuit line

Cited by 4 publications

References 14 publications

A new decoupling method for asymmetry‐parameter quadruple‐circuit lines on same tower

A new decoupling method for asymmetry‐parameter quadruple‐circuit lines on same tower

A single-end directional relaying scheme for double-circuit transmission line using fuzzy expert system

Series capacitor-compensated double-circuit transmission line directional relay system using a fuzzy expert system with a Haar wavelet

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