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Reliability modeling of PMUs using fuzzy sets

Aminifar, F ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/TPWRD.2010.2051821
  3. Abstract:
  4. Probabilistic analyses of a wide-area measurement system (WAMS) would require equivalent reliability models for its components which include phasor measurement units (PMUs). In this paper, the reliability modeling of PMU is proposed and the proposed model is extended to consider options for the PMU hardware. The Markov process is employed to analyze the proposed model and to present an equivalent two-state model of PMUs. Reliability parameters of PMU are estimated with major difficulties associated with limited and uncertain data. In this paper, uncertainties are taken into account to achieve more realistic estimates of PMU characteristics. Fuzzy sets along with reliability analyses and fuzzy importance measures (FIMs) are utilized as a means of measuring the significance of PMU components on its availability. Numerical analyses are conducted and results are discussed
  5. Keywords:
  6. Fuzzy sets ; Reliability modeling ; Importance measure ; Phasor measurement unit ; Probabilistic analysis ; Reliability model ; Reliability parameters ; Two-state model ; Uncertain datas ; Wide area measurement systems ; Electric power system interconnection ; Markov processes ; Numerical analysis ; Phase measurement ; Reliability analysis ; Units of measurement ; Uncertainty analysis
  7. Source: IEEE Transactions on Power Delivery ; Vol. 25, issue. 4 , 2010 , p. 2384-2391 ; ISSN: 8858977
  8. URL: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5556051&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5556051