Publications (4)0 Total impact
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Conference Proceeding: Probabilistic vulnerability assessment based on power flow and voltage distribution
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ABSTRACT: In this paper, a method to evaluate the power system vulnerability in terms of voltage magnitudes and transmission lines passing their limits is presented. Probabilistic technique is applied to obtain the distribution characteristics of the voltage magnitude and transmission line power flows. Cumulant-based expansion method is used to obtain the probabilistic distribution function (PDF) and cumulative distribution function (CDF) of power flows on transmission lines and voltage magnitudes at buses. The index to measure the system vulnerability is developed. The western North American power system model is used in the simulation to demonstrate the effectiveness of the method.Transmission and Distribution Conference and Exposition, 2010 IEEE PES; 05/2010 -
Conference Proceeding: Using state estimation residuals to detect abnormal SCADA data
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ABSTRACT: Detection of abnormal supervisory control and data acquisition (SCADA) data is critically important for safe and secure operation of modern power systems. In this paper, a methodology of abnormal SCADA data detection based on state estimation residuals is presented. Preceded with a brief overview of outlier detection methods and bad SCADA data detection for state estimation, the framework of the proposed methodology is described. Instead of using original SCADA measurements as the bad data sources, the residuals calculated based on the results of the state estimator are used as the input for the outlier detection algorithm. The BACON algorithm is applied to the outlier detection task. The IEEE 118-bus system is used as a test base to evaluate the effectiveness of the proposed methodology. The accuracy of the BACON method is compared with that of the 3-σ method for the simulated SCADA measurements and residuals.Transmission and Distribution Conference and Exposition, 2010 IEEE PES; 05/2010 -
Conference Proceeding: An Advanced Decision-Support Tool for Electricity Infrastructure Operations.
Critical Infrastructure Protection IV - Fourth Annual IFIP WG 11.10 International Conference on Critical Infrastructure Protection, ICCIP 2010, Washington, DC, USA, March 15-17, 2010, Revised Selected Papers; 01/2010 -
Conference Proceeding: Managing Complex Network Operation with Predictive Analytics.
Technosocial Predictive Analytics, Papers from the 2009 AAAI Spring Symposium, Technical Report SS-09-09, Stanford, California, USA, March 23-25, 2009; 01/2009
