Transient Fault Area Location and Fault Classification for Distribution Systems Based on Wavelet Transform and Adaptive Neuro-Fuzzy Inference System (ANFIS)

Ali Khaleghi, Mahmood Oukati Sadegh, Mahdi Ghazizadeh-Ahsaee, Alireza Mehdipour Rabori

Transient Fault Area Location and Fault Classification for Distribution Systems Based on Wavelet Transform and Adaptive Neuro-Fuzzy Inference System (ANFIS)

Číslo: 2/2018
Periodikum: Advances in Electrical and Electronic Engineering
ISBN: 1804-3119
DOI: 10.15598/aeee.v16i2.2563

Klíčová slova: Adaptive Neuro-Fuzzy Inference System (ANFIS); electrical distribution systems, fault classification; fault detection; fault location; wavelet transforms, Adaptivní neurofuzzy inferenční systém (ANFIS); elektrické rozvodné systémy, klasifikace poruch; detekce poruchy; místo poruchy; vlnové transformace

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Anotace: A novel method to locate the zone of transient faults and to classify the fault type in Power Distribution Systems using wavelet transforms and Adaptive Neuro-Fuzzy Inference Systems (ANFIS) has been developed. It draws on advanced techniques of signal processing based on wavelet transforms, using data sampled from the main feeder current to extract important characteristics and dynamic features of the fault signal. In this method, algorithms designed for fault detection and classification based on features extracted from wavelet transforms were implemented. One of four different algorithms based on ANFIS, according to the type of fault, was then used to locate the fault zone. Studies and simulations in an EMTP-RV environment for the 25kV power distribution system of Canada were carried out by considering ten types of faults with different fault inception, fault resistance and fault locations. The simulation results showed high accuracy in classifying the type of fault and determining the fault area, so that the maximum observed error was less than 2%.