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An analytic approach to unit commitment / Ali MERICHED

Public ISBD Titre : An analytic approach to unit commitment Type de document : texte imprimé Auteurs : Ali MERICHED, Auteur Année de publication : 1987 Importance : 100 p Langues : Anglais (eng) Catégories : Mathématique Mots-clés : Cost  the systéme incremental  branch and bound Résumé : In the present study a new analytic approach , based on the generalized lagrange multipliers method for the solution of the static unit commitment of thermal units has benn investigated the conditions for optimum unit commitment in this approach are reduced to a set of analytic conditions defining curves ,thermed switching curves which govern the swithing of the systéme units , and characterize a relatively small number of combinatinations of constant unit commitment , the optimum schediles can be analytic ally studied in terms of the load , the reserve margins and the associated lagrange multipliers corresponding to the systéme incremental cost and the reserve incremental cost respectively this analytic approach , termed the switching curve concept provides a new and unique insight into the unit switching mechanism not available from purely numerical techniques as well as gaining a physical interpretation for optimum unit commitment in terms of the system incremental costs A relatively fast algorithm based on simple numerical techniques and the branch-and bound method has been implemented using the abov concept and encouraging results were obtained even though , the static unit commitment does not consider many practical constraints , its solution could be useful as a lower or as a basic engine for the general dynamic case Directeur de thèse : F.D.GALIANA An analytic approach to unit commitment [texte imprimé] / Ali MERICHED, Auteur . - 1987 . - 100 p. Langues : Anglais (eng) Catégories : Mathématique Mots-clés : Cost  the systéme incremental  branch and bound Résumé : In the present study a new analytic approach , based on the generalized lagrange multipliers method for the solution of the static unit commitment of thermal units has benn investigated the conditions for optimum unit commitment in this approach are reduced to a set of analytic conditions defining curves ,thermed switching curves which govern the swithing of the systéme units , and characterize a relatively small number of combinatinations of constant unit commitment , the optimum schediles can be analytic ally studied in terms of the load , the reserve margins and the associated lagrange multipliers corresponding to the systéme incremental cost and the reserve incremental cost respectively this analytic approach , termed the switching curve concept provides a new and unique insight into the unit switching mechanism not available from purely numerical techniques as well as gaining a physical interpretation for optimum unit commitment in terms of the system incremental costs A relatively fast algorithm based on simple numerical techniques and the branch-and bound method has been implemented using the abov concept and encouraging results were obtained even though , the static unit commitment does not consider many practical constraints , its solution could be useful as a lower or as a basic engine for the general dynamic case Directeur de thèse : F.D.GALIANA

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4737	02-04-29	version papier	Bibliothèque USTOMB	Mémoire de Magister	Exclu du prêt