University of SaskatchewanHARVEST
  • Login
  • Submit Your Research
  • About
    • About HARVEST
    • Guidelines
    • Browse
      • All of HARVEST
      • Communities & Collections
      • By Issue Date
      • Authors
      • Titles
      • Subjects
      • This Collection
      • By Issue Date
      • Authors
      • Titles
      • Subjects
    • My Account
      • Login
      JavaScript is disabled for your browser. Some features of this site may not work without it.
      View Item 
      • HARVEST
      • Electronic Theses and Dissertations
      • Graduate Theses and Dissertations
      • View Item
      • HARVEST
      • Electronic Theses and Dissertations
      • Graduate Theses and Dissertations
      • View Item

      EVALUATION OF THE MARGINAL OUTAGE COSTS IN ELECTRIC POWER SYSTEMS

      Thumbnail
      View/Open
      Ghajar_Raymond_Fouad_1993_sec.pdf (22.72Mb)
      Date
      1993-06
      Author
      Ghajar, Raymond Fouad
      Type
      Thesis
      Degree Level
      Doctoral
      Metadata
      Show full item record
      Abstract
      Electricity spot pricing has been advocated in the past few years as a potential method for assigning incremental electricity costs to the time of delivery, and sending appropriate price signals to customers. Marginal outage costs constitute an important component of electricity spot prices. These costs are defined as the change in the expected customer outage costs that are incurred due to an incremental load change. The published literature indicates that the methods currently available for calculating the marginal outage costs utilize approximate economic models which do not take into consideration the stochastic nature of the power system and its effects on these costs. This thesis presents a method based on quantitative power system reliability concepts for calculating the marginal outage costs in electric power systems. This method is based on the premise that the marginal outage costs are expected quantities that depend upon two major factors: the customer economic costs that accompany various outage levels and the effects of load changes on the probabilities that these costs will actually be incurred. The proposed method calculates the marginal outage cost as the product of the incremental expected unserved energy and the average cost of unserved energy. A method for calculating the incremental expected unserved energy in generating and composite generation and transmission systems is developed in this thesis. The average cost of unserved energy is represented by the interrupted energy assessment rate. The proposed method is illustrated in this thesis by application to two reliability test systems in order to show the impact of system size on the robustness of the method and the accuracy of the approximations. In addition to the basic studies, a number of sensitivity analyses are conducted to show the impact of selected modelling assumptions and parameters on the marginal outage cost. The results from the sensitivity analyses are then used to provide recommendations for implementing the proposed method in practical systems.
      Degree
      Doctor of Philosophy (Ph.D.)
      Department
      Electrical and Computer Engineering
      Program
      Electrical Engineering
      Supervisor
      Billinton, R.
      Copyright Date
      June 1993
      URI
      http://hdl.handle.net/10388/11616
      Collections
      • Graduate Theses and Dissertations
      University of Saskatchewan

      University Library

      © University of Saskatchewan
      Contact Us | Disclaimer | Privacy