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Fault Location and Classification of Combined Transmission System: Economical and Accurate Statistic Programming Framework

  • Tavalaei, Jalal (Department of Electrical Power Engineering, Universiti Teknologi Malaysia (UTM)) ;
  • Habibuddin, Mohd Hafiz (Department of Electrical Power Engineering, Universiti Teknologi Malaysia (UTM)) ;
  • Khairuddin, Azhar (Department of Electrical Power Engineering, Universiti Teknologi Malaysia (UTM)) ;
  • Mohd Zin, Abdullah Asuhaimi (Department of Electrical Power Engineering, Universiti Teknologi Malaysia (UTM))
  • Received : 2016.01.12
  • Accepted : 2017.06.26
  • Published : 2017.11.01

Abstract

An effective statistical feature extraction approach of data sampling of fault in the combined transmission system is presented in this paper. The proposed algorithm leads to high accuracy at minimum cost to predict fault location and fault type classification. This algorithm requires impedance measurement data from one end of the transmission line. Modal decomposition is used to extract positive sequence impedance. Then, the fault signal is decomposed by using discrete wavelet transform. Statistical sampling is used to extract appropriate fault features as benchmark of decomposed signal to train classifier. Support Vector Machine (SVM) is used to illustrate the performance of statistical sampling performance. The overall time of sampling is not exceeding 1 1/4 cycles, taking into account the interval time. The proposed method takes two steps of sampling. The first step takes 3/4 cycle of during-fault and the second step takes 1/4 cycle of post fault impedance. The interval time between the two steps is assumed to be 1/4 cycle. Extensive studies using MATLAB software show accurate fault location estimation and fault type classification of the proposed method. The classifier result is presented and compared with well-established travelling wave methods and the performance of the algorithms are analyzed and discussed.

Keywords

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