Identification and Classification of Symmetrical and Unsymmetrical Faults using Stockwell Transform

In the power sector, distributed generators have revamping behavior resulting in several impacts on the system which need to be investigated. Protection equipment used in power systems is widely used and distributed all over the entire network and facilitating the utilities to enhance the system against various symmetrical and unsymmetrical faults; their identification and segregation is a necessity. This proposed novel method of S-matrix obtained from signal features using Stockwell Transform for fault determination is implemented. This approach depends upon the thresholds and algorithm later detects the faults which are implemented over the IEEE 33 Bus systems tested on MATLAB Simulink.