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Gradient Ascent Optimization for Fault Detection in Electrical Power System Based on Wavelet Transformation

Author(s):

Iyappan Murugesan* and Karpagam Sathish  

Abstract:


This paper presents electrical power system comprises many complex and interrelating elements that are susceptible to the disturbance or electrical fault. The faults in electrical power system transmission line (TL) are detected and classified. But, the existing techniques like artificial neural network (ANN) failed to improve the Fault Detection (FD) performance during transmission and distribution. In order to reduce the power loss rate (PLR), Daubechies Wavelet Transform based Gradient Ascent Deep Neural Learning (DWT-GADNL) Technique is introduced for FDin electrical power sub-station. DWT-GADNL Technique comprises three step, normalization, feature extraction and FD through optimization. Initially sample power TL signal is taken. After that in first step, min-max normalization process is carried out to estimate the various rated values of transmission lines. Then in second step, Daubechies Wavelet Transform (DWT) is employed for decomposition of normalized TLsignal to different components for feature extraction with higher accuracy. Finally in third step, Gradient Ascent Deep Neural Learning is an optimization process for detecting the local maximum (i.e., fault) from the extracted values with help of error function and weight value. When maximum error with low weight value is identified, the fault is detected with lesser time consumption. DWT-GADNL Technique is measured with PLR, feature extraction accuracy (FEA), and fault detection time (FDT). The simulation result shows that DWT-GADNL Technique is able to improve the performance of FEA and reduces FDT and PLR during the transmission and distribution when compared to state-of-the-art works.

Keywords:

Deep neural learning, Electrical power system, Fault detection Optimization, Feature extraction, Gradient ascent, Normalization.

Affiliation:

Department of EEE, M.Kumarasamy College of Engineering, Thalavapalayam, Karur, Tamilnadu, Department of EEE, Hindusthan College of Engineering and Technology, Coimbatore, Tamilnadu, India 641050. Mobile:+91 9841957559;E-mail:karpagam.sathish@gmail.com



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