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Fault monitoring, detection, and correction using synchrophasor measurements in modern power systems

Fault monitoring, detection, and correction using synchrophasor measurements in modern power systems

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A collection of clustering algorithms was presented for grouping the PMU datasets into good and bad data. The results presented provide promising results for situational awareness for the next generation power grid.

Chapter Contents:

  • 6.1 Clustering methods and openPDC interface
  • 6.1.1 openPDC setup and data extraction process
  • 6.1.2 Application of k-means clustering
  • 6.1.3 Application of density-based spatial clustering of applications with noise clustering
  • 6.1.4 Development of a novel method, multitier k-means clustering method
  • 6.2 Need for a hybrid method
  • 6.2.1 Development of multitier k-means method
  • 6.2.1.1 Stage I - Creation of 1-3 clusters based on the phasor data input
  • 6.2.1.2 Stage II - Extending the clusters from stage I to 4 or 5 clusters based on any border data present
  • 6.2.2 Advantages of using proposed multitier k-means method
  • 6.3 Results and discussions
  • 6.3.1 Results obtained from data clustering algorithms
  • 6.3.1.1 Test case 1: system under steady state (normal) conditions
  • 6.3.1.2 Test case 2: system under heavy load condition
  • 6.3.1.3 Test case 3: system under light load conditions
  • 6.3.1.4 Test case 4: system under single line to ground fault condition
  • 6.3.1.5 Test results with current (I) data
  • 6.3.1.6 Quantification of the visual data representation
  • 6.3.1.7 Computational time
  • 6.3.1.8 Visual fidelity
  • 6.3.1.9 Dunn's index
  • 6.4 Conclusion
  • Acknowledgments
  • References

Inspec keywords: power system faults; power grids; fault diagnosis; pattern clustering; phasor measurement

Other keywords: fault correction; situational awareness; next generation power grid; modern power systems; fault monitoring; fault detection; PMU datasets; synchrophasor measurements; phasor measurement units; clustering algorithms

Subjects: Power system measurement and metering

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