access icon free DT-based relaying scheme for fault classification in transmission lines using MODP

© The Institution of Engineering and Technology
Received 16/11/2016, Accepted 17/02/2017, Revised 31/01/2017, Published 17/03/2017

In this study, a novel intelligent relaying scheme is proposed for fault classification and faulted phase selection using magnitude of differential power (MODP). The DP is the multiplication of difference between the magnitude of the real and estimated voltage and current phasors. The MODP for each phase is used as an input data to the data mining model known as decision tree (DT). The DT is used to generate thresholds to detect and classify the faults, since determination of robust thresholds is an important challenge in protective relay engineering. The proposed method has been tested for different operating modes of single-circuit transmission line in Simulink/MATLAB software. Simulation results indicate that the proposed method is able to detect and classify the faults with acceptable accuracy, in less than half cycle.

Inspec keywords: power engineering computing; power transmission lines; power transmission faults; decision trees; data mining; relay protection; fault diagnosis

Other keywords: data mining model; fault classification; fault detection; estimated voltage phasor; MODP; DT-based relaying scheme; intelligent relaying scheme; Simulink software; decision tree; faulted phase selection; single-circuit transmission line; MATLAB software; protective relay engineering; estimated current phasor; magnitude-of-differential power

Subjects: Power transmission lines and cables; Combinatorial mathematics; Power engineering computing; Power system protection; Knowledge engineering techniques; Combinatorial mathematics; Power transmission, distribution and supply; Data handling techniques

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