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This collection contains theses and dissertations of graduate students of the University of Alberta. The collection contains a very large number of theses electronically available that were granted from 1947 to 2009, 90% of theses granted from 2009-2014, and 100% of theses granted from April 2014 to the present (as long as the theses are not under temporary embargo by agreement with the Faculty of Graduate and Postdoctoral Studies). IMPORTANT NOTE: To conduct a comprehensive search of all UofA theses granted and in University of Alberta Libraries collections, search the library catalogue at www.library.ualberta.ca - you may search by Author, Title, Keyword, or search by Department.
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Results for "Probability Distributions on a Circle"

Subject: Distribution systems Departments: Department of Electrical and Computer Engineering

  • Zero-Sequence-Voltage-Based Detection and Localization Schemes for False Data Injection Attacks in Multiphase Power Distribution Systems

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    Fall 2022

    Ma,Chengran

    detect the presence of FDIAs, a novel FDIA detection scheme is proposed in this thesis for three-phase distribution systems based on zero-sequence voltage (ZSV). From the voltage and power measurements, the bus voltages are estimated, and then the estimated ZSV is calculated as the sum of the estimated

    bus voltages on the three phases to represent the degree of unbalance of the distribution system. Via mathematical analysis of the linear distribution system state estimation (DSSE) model, the distribution of the estimated ZSV under the normal condition is derived, based on which a whitening process

    is adopted on the estimated ZSV to weaken the effect of measurement noises. The L2-norm of the whitened ZSV vector is then compared with a predefined threshold for the FDIA detection. Moreover, the probability of false alarm of the proposed scheme is derived, which can be utilized to determine the

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