Joint power system state estimation and breaker status identification

Vasileios Kekatos, Georgios B Giannakis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

22 Scopus citations

Abstract

The penetration of renewables and demand-response programs will inevitably lead to frequent flow reversals and substation reconfigurations, while high-throughput synchrophasor measurement units are being installed throughout the grid. Hence, jointly verifying circuit breaker statuses and estimating the state of power networks of increasing dimensionality becomes even more challenging. Building on generalized state estimation, revisited in the light of modern measurement capabilities, the aforementioned task is relaxed to a convex optimization problem. Exploiting compressive sampling advances, the prior information on unmonitored and suspected switches takes the form of ℓ2-norm penalties promoting sparsity in a properly defined block manner. An efficient algorithm is developed to ensure compatibility with solvers found currently at control centers. Numerical tests on the IEEE 14-bus model corroborate the effectiveness of the novel scheme.

Original languageEnglish (US)
Title of host publication2012 North American Power Symposium, NAPS 2012
DOIs
StatePublished - Dec 10 2012
Event2012 North American Power Symposium, NAPS 2012 - Champaign, IL, United States
Duration: Sep 9 2012Sep 11 2012

Publication series

Name2012 North American Power Symposium, NAPS 2012

Other

Other2012 North American Power Symposium, NAPS 2012
Country/TerritoryUnited States
CityChampaign, IL
Period9/9/129/11/12

Keywords

  • Alternating direction method of multipliers
  • generalized state estimator
  • intelligent electronic devices
  • phasor measurement units

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