Fast contingency analysis for power system operations and planning

dc.contributor.advisorLee, Kwang Y.
dc.contributor.committeeMemberShieh, Leang-San
dc.contributor.committeeMemberPyle, Leonard Duane
dc.creatorMousighi, Mohammad R.
dc.description.abstractWith the advent of fast and large capacity computers, the solution technique for power system load flow and other related problems pertaining to system contingencies seemed to have reached their final stage. However, in spite of these tools, the evaluation of large system contingencies using conventional load flow programs has been very tedious and uneconomical. For many planning and operations applications, an exact power flow solution with a detailed output is not necessary. For these applications, it is much more efficient to use a fast approximate solution method and to limit the output to include only the most essential information. A technique that simulates line contingencies is developed which provides information on the final state of a power system. This simulation is accomplished by modification of the power injected into the system bases. The modification is calculated using the Jacobian matrix of the system. Real and reactive power flowing in all system elements and voltages at all buses are then calculated. This technique is extended for study of single line outage, simultaneous multiple line outage, single line addition, simultaneous multiple line addition, and addition of a new bus. The proposed method has been applied to a 6-bus and a 30-bus system. The power flows and bus voltages calculated by the proposed technique are compared with those obtained from the conventional load flow technique.
dc.description.departmentElectrical and Computer Engineering, Department of
dc.format.digitalOriginreformatted digital
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.subjectElectric power distribution--Reliability--Data processing
dc.subjectElectric power systems
dc.titleFast contingency analysis for power system operations and planning
dc.type.genreThesis College of Engineering Engineering, Department of Engineering of Houston of Science


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