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Optimal placement of PMU and SCADA measurements for security constrained state estimation
Published in
2011
Volume: 33
   
Issue: 10
Pages: 1658 - 1665
Abstract
This paper presents a method for the use of Supervisory Control and Data Acquisition (SCADA) and synchronized measurements for complete observability of a power system. Under normal operation, both Node Phasor Measurement Unit (NPMU) and SCADA measurements are optimally placed using integer programming and Genetic Algorithm (GA) respectively. The minimum condition number of the Jacobian matrix is used as a criteria in conjunction with GA to obtain a completely determined condition. Next, a triangular factorization approach is used to search for the necessary candidates for single branch outage and single/multiple measurement loss. These candidate measurements are optimized by the binary integer programming method. Numerical results on the IEEE test systems are demonstrated. The results clearly show the robustness of the method to obtain reliable measurements under both normal and contingency conditions. © 2011 Elsevier Ltd. All rights reserved.
About the journal
JournalInternational Journal of Electrical Power and Energy Systems
ISSN01420615
Open AccessNo
Concepts (26)
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    BINARY INTEGER PROGRAMMING
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    BRANCH OUTAGE
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    COMPLETE OBSERVABILITY
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    CONDITION NUMBERS
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    IEEE TEST SYSTEMS
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    MEASUREMENT LOSS
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    Normal operations
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    Numerical results
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    OBSERVABILITY ANALYSIS
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    OPTIMAL PLACEMENTS
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    Phasor measurement unit
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    RELIABLE MEASUREMENT
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    SCADA MEASUREMENTS
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    SECURITY CONSTRAINED
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    SUPERVISORY CONTROL AND DATA ACQUISITION
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    SYNCHRONIZED MEASUREMENT
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    TRIANGULAR FACTORIZATION
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    Genetic algorithms
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    Integer programming
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    Jacobian matrices
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    Number theory
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    Observability
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    Optimization
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    Phase measurement
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    Units of measurement
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    Measurements