State estimation of electrical power networks using semidefinite relaxation
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United States of America Patent
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Jan 9, 2018
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Apr 12, 2013
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Apr 13, 2012
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Abstract
A semidefinite (SDR) programming formulation for state estimation (SE) of nonlinear AC power systems is described. The techniques make use of convex semidefinite relaxation of the original problem to render the process efficiently solvable. In addition, robust techniques are described that are resilient to outlying measurements and/or adversarial cyber-attacks. Further, techniques for SDR-based SE are described in which local control areas solve the centralized SDP-based SE problem in a distributed fashion.
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