Fault Detection Based on Hierarchical Cluster Analysis in Wide Area Backup Protection System
Yagang ZHANG, Jinfang ZHANG, Jing MA, Zengping WANG
DOI: 10.4236/epe.2009.11004   PDF    HTML     5,642 Downloads   9,911 Views   Citations


In wide area backup protection of electric power systems, the prerequisite of protection device's accurate, fast and reliable performance is its corresponding fault type and fault location can be discriminated quickly and defined exactly. In our study, global information will be introduced into the backup protection system. By analyzing and computing real-time PMU measurements, basing on cluster analysis theory, we are using mainly hierarchical cluster analysis to search after the statistical laws of electrical quantities' marked changes. Then we carry out fast and exact detection of fault components and fault sections, and finally accomplish fault isolation. The facts show that the fault detection of fault component (fault section) can be performed successfully by hierarchical cluster analysis and calculation. The results of hierarchical cluster analysis are accurate and reliable, and the dendrograms of hierarchical cluster analysis are in intuition.

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Y. ZHANG, J. ZHANG, J. MA and Z. WANG, "Fault Detection Based on Hierarchical Cluster Analysis in Wide Area Backup Protection System," Energy and Power Engineering, Vol. 1 No. 1, 2009, pp. 21-27. doi: 10.4236/epe.2009.11004.

Conflicts of Interest

The authors declare no conflicts of interest.


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