Fuzzy Logic Based Scheme for Directional Earth Fault Detection and Classification

Radhwan Mohammed Saleem Dawood , Gobind Gopalakrishna Pillai, Maher Al-Greer

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Abstract

This paper presents a fuzzy-logic-based protection scheme for detecting the direction of earth faults in a transmission network using polarized voltage. The IEEE 9-Bus transmission network has been used to test the fuzzy logic scheme in MATLAB/Simulink. The proposed scheme involves the measurement of RMS value of each phase voltage in order to detect occurrence of a fault; the direction of fault is determined by measuring the phase angle between the fault current and the polarized or reference voltage. The proposed scheme has been tested in six earth fault cases, faults in the forward and reverse direction per phase. The simulation results demonstrate that the proposed protection scheme is able to detect earth fault and classify the fault direction accurately within one cycle time.
Original languageEnglish
Publication statusAccepted/In press - 4 Sep 2018
EventIEEE 53rd International Universities Power Engineering Conference - Glasgow Caledonian University, Glasgow, Scotland, UK, Glasgow, United Kingdom
Duration: 4 Sep 20187 Sep 2018
http://www.upec2018.com/
http://www.upec2018.com/

Conference

ConferenceIEEE 53rd International Universities Power Engineering Conference
Abbreviated titleUPEC 2018
CountryUnited Kingdom
CityGlasgow
Period4/09/187/09/18
Internet address

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    Dawood , R. M. S., Gopalakrishna Pillai, G., & Al-Greer, M. (Accepted/In press). Fuzzy Logic Based Scheme for Directional Earth Fault Detection and Classification. Paper presented at IEEE 53rd International Universities Power Engineering Conference, Glasgow, United Kingdom.