1Ayokanmi Emmanuel Oduleye, 2Imo Edwin Nkan, 3Ekom Enefiok Okpo
1,2,3Department of Electrical and Electronic Engineering, Akwa Ibom State University, Ikot Akpaden, Nigeria.
DOI : https://doi.org/10.47191/ijmra/v6-i11-51Google Scholar Download Pdf
ABSTRACT:
Fundamentally, the occurrence of high impedance fault (HIF) can be established when an energy filled conductor contacts a semiconductor. The occurrence of HIF can be described to be subtle and disastrous as it results to low current signal and a signal voltage arc if undetected and without implementation of protective measures, leads to the damage of the power system equipment and in many cases fire outbreak. In this study, the occurrence of HIF on the south-south region of Nigerian 330kV transmission line was studied with the data utilized obtained from the Nigerian control center (NCC) Osogbo. The data obtained was modeled in simulink and the outcome at normal condition was obtained. The transmission line distance was split into 4 points with the current signal at each point generated in simulink and exported to the Matlab file. The data in Matlab file was split to train, test and validate at 70%, 15% and 15% respectively. The data analysis performed was sent to Adaptive Neuro-fuzzy inference system (ANFIS) with the current signal at normal condition and at 3-phase HIF was used as input data while the split distance was implemented as the target data to the model. The effectiveness of the model in detecting and locating HIF was obtained and analyzed in a comparative plot of the location distance. From the results presented, the highest error deviation for fault location with ANFIS was 10%. Hence, it was concluded that ANFIS model had a satisfactory outcome in HIF detection and as such should be utilized for the HIF detection and location.
KEYWORDS:ANFIS, HIF, Detection of HIF, Location of HIF, MatLab, Simulink
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Volume 06 Issue 11 November 2023
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