Design of a decision fusion rule for power system security assessment

J. C. Chow, Q. Zhu, R. Fischl, M. Kam

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


An Integrated Decision Support system is designed via sensor fusion techniques, for assessing the security of power systems. The Integrated Decision Support system fuses information from various Approximated System Performance (ASP) models in order to minimize the risk of making the wrong decision under changing operating conditions. It uses the classification decisions provided by different ASP models together with information about their statistical performance (e.g. probabilities of misclassifications) to synthesize the globally optimal decision in the Bayesian risk sense. This global decision is often superior (and in no case inferior) to the one obtained using any single ASP model. The design of the integrated decision support system is illustrated for detecting static voltage collapse by fusing the security information from a set of existing security indices.

Original languageEnglish (US)
Pages (from-to)858-864
Number of pages7
JournalIEEE Transactions on Power Systems
Issue number3
StatePublished - Aug 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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