Advances in Electrical and Computer Engineering (Aug 2010)

PCA Fault Feature Extraction in Complex Electric Power Systems

  • ZHANG, J.,
  • WANG, Z.,
  • ZHANG, Y.,
  • MA, J.

DOI
https://doi.org/10.4316/AECE.2010.03017
Journal volume & issue
Vol. 10, no. 3
pp. 102 – 107

Abstract

Read online

Electric power system is one of the most complex artificial systems in the world. The complexity is determined by its characteristics about constitution, configuration, operation, organization, etc. The fault in electric power system cannot be completely avoided. When electric power system operates from normal state to failure or abnormal, its electric quantities (current, voltage and angles, etc.) may change significantly. Our researches indicate that the variable with the biggest coefficient in principal component usually corresponds to the fault. Therefore, utilizing real-time measurements of phasor measurement unit, based on principal components analysis technology, we have extracted successfully the distinct features of fault component. Of course, because of the complexity of different types of faults in electric power system, there still exists enormous problems need a close and intensive study.

Keywords