Decision tree-based preventive and corrective control applications for dynamic security enhancement in power systems

Istemihan Genc*, Ruisheng Diao, Vijay Vittal, Sharma Kolluri, Sujit Mandal

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

158 Citations (Scopus)


In this paper, decision tree (DT)-based preventive and corrective control methods are proposed to enhance the dynamic security of power systems against the credible contingencies causing transient instabilities. Preventive and corrective controls such as generation rescheduling and load shedding schemes, respectively, are developed based on the security regions and boundaries that are calculated in the space of appropriate decision variables. The security regions and boundaries are determined by the rules of DTs that are developed by the generated knowledge bases. This work also involves improving the accuracy of security boundaries as well as the optimal solutions for the fuel cost and load shedding optimization problems encountered in the preventive and corrective controls. The methods are implemented on the Entergy power system model.

Original languageEnglish
Article number5374083
Pages (from-to)1611-1619
Number of pages9
JournalIEEE Transactions on Power Systems
Issue number3
Publication statusPublished - Aug 2010


Manuscript received June 18, 2009; revised September 17, 2009. First published January 08, 2010; current version published July 21, 2010. This work was supported in part by The Scientific and Technological Research Council of Turkey (TUBITAK). Paper no. TPWRS-00464-2009. I. Genc is with the Department of Electrical Engineering, Istanbul Technical University, Maslak, Istanbul 34469, Turkey (e-mail: R. Diao and V. Vittal are with the Department of Electrical Engineering, Arizona State University, Tempe, AZ 85287 USA (e-mail:;; S. Kolluri and S. Mandal are with Entergy Services, Inc., New Orleans, LA 70113 USA (e-mail:; Color versions of one or more of the figures in this paper are available online at Digital Object Identifier 10.1109/TPWRS.2009.2037006

FundersFunder number
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu


    • Corrective control
    • dynamic security assessment
    • preventive control


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