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A method of generation scheduling in electric utility systems with nuclear units

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dc.contributor.authorRahman, Saifuren
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:10:20Zen
dc.date.adate2010-04-07en
dc.date.available2014-03-14T21:10:20Zen
dc.date.issued1978en
dc.date.rdate2010-04-07en
dc.date.sdate2010-04-07en
dc.description.abstractThe problem of unit commitment in an electric utility system is analyzed. The types of generating units considered include nuclear-steam, fossil-steam, thermalpeaking, conventional and pumped-storage hydro. The large problem of generating unit commitment, due to the inclusion of the nuclear unit, is decomposed into two stages. In the first stage, the relatively stable nuclear generation is optimized with respect to the generation from the large fossil-steam unit. Hourly generation levels for all the units in the system are determined in the second stage. AS a result of considering the startup-shutdown cost, the objective function has a fixed charge component in addition to first and second degree polynomials. Representation of the minimum turndown level and minimum Shutdown duration of the generator necessitates the use of O-1 variables along with continuous variables. The solution methodology presented here, applying an extension of the Lambda-Separable Programming, can handle these requirements efficiently. Application of the algorithm results in a minimum-cost generation schedule for all units in the system. Optimum generation levels of energy limited units are determined without using a preselected unit commitment order. The effect of startup-shutdown costs on the number of hours a Plant should operate is established. The cost and benefit of spent nuclear fuel reprocessing is analyzed and the effect of uranium prices on it (reprocessing) is shown. The model is tested using a sample system of six generating units. Hourly generation schedules, includig purchase and sale, are determined for two one-week periods while the nuclear generation is optimized for an entire year.en
dc.description.degreePh. D.en
dc.format.extent288 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-04072010-020302en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04072010-020302/en
dc.identifier.urihttp://hdl.handle.net/10919/37576en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1978.R34.pdfen
dc.relation.isformatofOCLC# 07104643en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1978.R34en
dc.subject.lcshElectric power productionen
dc.subject.lcshElectric power systems -- Managementen
dc.subject.lcshNuclear power plantsen
dc.subject.lcshProduction schedulingen
dc.titleA method of generation scheduling in electric utility systems with nuclear unitsen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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