{"id":{"repo_id":"greece","oai_identifier":"oai:10442/0238"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/0238","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΑΝΑΛΥΣΗ ΚΑΙ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΔΙΚΤΥΩΝ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ","abstract":"PROBLEMS OF ANALYSIS AND OPTIMIZATION OF LARGE SCALE NETWORKS PRESENT SERIOUS DIFFICULTIES OF A COMPUTATIONAL NATURE. SOLUTIONS TO SUCH PROBLEMS REQUIRE AMOUNTS OF COMPUTATION WHICH EXCEED THE COMPUTATIONAL CAPACITY USUALLY AVAILABLE.WITH THE AIM OF BY PASSING CERTAIN OF THE ABOVE MENTIONED COMPUTATIONAL DIFFICULTIES WE PROPOSE AN ALGORITHM FOR THE TRANSFORMATION AND REDUCTION OF SUCH LARGE SCALE NETWORKS, BASED ON A SEQUENCE OF ELEMENTARY NETWORK TRANSFORMATIONS. FURTHERMORE WE DEVELOP A TWO-LEVEL COMPUTATIONAL ALGORITHM BY MEANS OF WHICH THE REDUCED LARGE SCALE NETWORK AND EACH OF THE SUBNETWORKS OF THE LARGE SCALE NETWORK ARE ANALYZED AND OPTIMIZED REPEATEDLY. THE DECOMPOSITION OF THE LARGE SCALE PROBLEM AND THE EFFECTIVE COORDINATION OF THE SUBPROBLEMS LEADS TO A FASTER RESPONSE, WHILE CERTAIN DIFFICULTIES ARISING FROM THE SIZE OF THE PROBLEM ARE ALSO OVERCOMED.","abstract_html":"PROBLEMS OF ANALYSIS AND OPTIMIZATION OF LARGE SCALE NETWORKS PRESENT SERIOUS DIFFICULTIES OF A COMPUTATIONAL NATURE. SOLUTIONS TO SUCH PROBLEMS REQUIRE AMOUNTS OF COMPUTATION WHICH EXCEED THE COMPUTATIONAL CAPACITY USUALLY AVAILABLE.WITH THE AIM OF BY PASSING CERTAIN OF THE ABOVE MENTIONED COMPUTATIONAL DIFFICULTIES WE PROPOSE AN ALGORITHM FOR THE TRANSFORMATION AND REDUCTION OF SUCH LARGE SCALE NETWORKS, BASED ON A SEQUENCE OF ELEMENTARY NETWORK TRANSFORMATIONS. FURTHERMORE WE DEVELOP A TWO-LEVEL COMPUTATIONAL ALGORITHM BY MEANS OF WHICH THE REDUCED LARGE SCALE NETWORK AND EACH OF THE SUBNETWORKS OF THE LARGE SCALE NETWORK ARE ANALYZED AND OPTIMIZED REPEATEDLY. THE DECOMPOSITION OF THE LARGE SCALE PROBLEM AND THE EFFECTIVE COORDINATION OF THE SUBPROBLEMS LEADS TO A FASTER RESPONSE, WHILE CERTAIN DIFFICULTIES ARISING FROM THE SIZE OF THE PROBLEM ARE ALSO OVERCOMED.","abstract_has_math":false,"creators":["Μάνεσης, Σταμάτης"],"institution":"University of Patras","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1986,"date_issued":"1986","date_published":"1986","updated_at":"2026-07-24T02:25:08Z","subjects":["Βελτιστοποίηση","ΔΙΑΣΠΑΣΗ-ΣΥΝΤΟΝΙΣΜΟΣ","Ηλεκτρικά δίκτυα και συστήματα","ΜΕΤΑΣΧΗΜΑΤΙΣΜΟΙ ΔΙΚΤΥΩΝ","Συστήματα μεγάλης κλίμακας","DECOMPOSITION-COORDINATION","LARGE SCALE SYSTEMS","LOAD DISPATCHING","NETWORK TRANSFORMATIONS","Optimization","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Ηλεκτρολόγου Μηχανικού, Ηλεκτρονικού Μηχανικού, Μηχανικού Η/Υ","Engineering and Technology","Electrical Engineering, Electronic Engineering, Information Engineering"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0238"],"render_values":[{"text":"10.12681/eadd/0238","href":"https://doi.org/10.12681/eadd/0238","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/0238","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Μάνεσης, Σταμάτης"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1986"]},{"key":"dc:publisher","label":"Institution","values":["University of Patras","Πανεπιστήμιο Πατρών"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Βελτιστοποίηση","ΔΙΑΣΠΑΣΗ-ΣΥΝΤΟΝΙΣΜΟΣ","Ηλεκτρικά δίκτυα και συστήματα","ΜΕΤΑΣΧΗΜΑΤΙΣΜΟΙ ΔΙΚΤΥΩΝ","Συστήματα μεγάλης κλίμακας","DECOMPOSITION-COORDINATION","LARGE SCALE SYSTEMS","LOAD DISPATCHING","NETWORK TRANSFORMATIONS","Optimization","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Ηλεκτρολόγου Μηχανικού, Ηλεκτρονικού Μηχανικού, Μηχανικού Η/Υ","Engineering and Technology","Electrical Engineering, Electronic Engineering, Information Engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0238","http://hdl.handle.net/10442/hedi/0238"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["PROBLEMS OF ANALYSIS AND OPTIMIZATION OF LARGE SCALE NETWORKS PRESENT SERIOUS DIFFICULTIES OF A COMPUTATIONAL NATURE. SOLUTIONS TO SUCH PROBLEMS REQUIRE AMOUNTS OF COMPUTATION WHICH EXCEED THE COMPUTATIONAL CAPACITY USUALLY AVAILABLE.WITH THE AIM OF BY PASSING CERTAIN OF THE ABOVE MENTIONED COMPUTATIONAL DIFFICULTIES WE PROPOSE AN ALGORITHM FOR THE TRANSFORMATION AND REDUCTION OF SUCH LARGE SCALE NETWORKS, BASED ON A SEQUENCE OF ELEMENTARY NETWORK TRANSFORMATIONS. FURTHERMORE WE DEVELOP A TWO-LEVEL COMPUTATIONAL ALGORITHM BY MEANS OF WHICH THE REDUCED LARGE SCALE NETWORK AND EACH OF THE SUBNETWORKS OF THE LARGE SCALE NETWORK ARE ANALYZED AND OPTIMIZED REPEATEDLY. THE DECOMPOSITION OF THE LARGE SCALE PROBLEM AND THE EFFECTIVE COORDINATION OF THE SUBPROBLEMS LEADS TO A FASTER RESPONSE, WHILE CERTAIN DIFFICULTIES ARISING FROM THE SIZE OF THE PROBLEM ARE ALSO OVERCOMED.","Η ΔΙΑΤΡΙΒΗ ΑΥΤΗ ΑΣΧΟΛΕΙΤΑΙ ΜΕ ΤΟ ΣΥΝΘΕΤΟ ΠΡΟΒΛΗΜΑ ΤΗΣ ΑΝΑΛΥΣΗΣ ΚΑΙ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗΣ ΗΛΕΚΤΡΙΚΩΝ ΔΙΚΤΥΩΝ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ. ΤΟ ΠΡΟΒΛΗΜΑ ΣΥΝΙΣΤΑΤΑΙ ΣΤΗΝ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΕΝΟΣ ΠΟΛΥΜΕΤΑΒΛΗΤΟΥ ΚΡΙΤΗΡΙΟΥ ΣΕ ΣΥΝΔΥΑΣΜΟ ΜΕ ΤΗΝ ΙΚΑΝΟΠΟΙΗΣΗ ΜΕΓΑΛΟΥ ΑΡΙΘΜΟΥ ΜΗ ΓΡΑΜΜΙΚΩΝ ΙΣΟΤΙΚΩΝ ΠΕΡΙΟΡΙΣΜΩΝ ΠΟΥ ΠΗΓΑΖΟΥΝ ΑΠΟ ΤΗΝ ΕΦΑΡΜΟΓΗ ΤΩΝ ΝΟΜΩΝ ΤΟΥ KIRCHHOFF ΣΕ ΗΛΕΚΤΡΙΚΑ ΔΙΚΤΥΑ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ. Η ΠΡΟΤΕΙΝΟΜΕΝΗ ΜΕΘΟΔΟΣ ΑΚΟΛΟΥΘΕΙ ΤΗΝ ΔΙΕΘΝΗ ΕΡΕΥΝΗΤΙΚΗ ΤΑΣΗ ΓΙΑ ΔΙΑΣΠΑΣΜΕΝΗ ΛΥΣΗ. ΕΤΣΙ, ΤΟ ΣΥΝΘΕΤΟ ΠΡΟΒΛΗΜΑ ΔΙΑΣΠΑΤΑΙ ΣΕ ΥΠΟΠΡΟΒΛΗΜΑΤΑ ΑΝΤΙΣΤΟΙΧΑ ΜΕ ΤΑ ΘΕΩΡΟΥΜΕΝΑ ΥΠΟΔΙΚΤΥΑ. ΤΑ ΥΠΟΔΙΚΤΥΑ ΜΕΤΑΣΧΗΜΑΤΙΖΟΝΤΑΙ ΣΕ ΙΣΟΔΥΝΑΜΑ ΜΙΚΡΟΤΕΡΗΣ ΤΑΞΗΣ, ΠΡΑΓΜΑ ΠΟΥ ΕΠΙΤΡΕΠΕΙΤΗΝ ΔΙΑΤΥΠΩΣΗ ΕΝΟΣ ΑΠΛΟΠΟΙΗΜΕΝΟΥ ΠΡΟΒΛΗΜΑΤΟΣ ΣΥΝΤΟΝΙΣΜΟΥ ΤΩΝ ΥΠΟΠΡΟΒΛΗΜΑΤΩΝ. Ο ΣΥΝΤΟΝΙΣΜΟΣ ΕΠΙΤΥΓΧΑΝΕΤΑΙ ΜΕ ΤΗΝ ΟΡΓΑΝΩΣΗ ΕΝΟΣ ΔΙΕΠΙΠΕΔΟΥ ΙΕΡΑΡΧΙΚΟΥ ΣΧΗΜΑΤΟΣ ΣΤΟ ΟΠΟΙΟ ΑΝΑΤΙΘΕΤΑΙ ΤΟ ΟΛΟ ΥΠΟΛΟΓΙΣΤΙΚΟ ΕΡΓΟ. ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ, ΕΦΑΡΜΟΓΗΣ ΤΗΣ ΜΕΘΟΔΟΥ ΣΕ ΠΡΑΚΤΙΚΑ ΠΑΡΑΔΕΙΓΜΑΤΑ, ΣΥΓΚΡΙΝΟΝΤΑΙ ΙΚΑΝΟΠΟΙΗΤΙΚΑ ΜΕ ΑΝΤΙΣΤΟΙΧΑ ΜΙΑΣ ΚΕΝΤΡΙΚΗΣ ΛΥΣΗΣ, ΚΑΙ ΠΑΡΕΧΟΥΝ ΔΥΝΑΤΟΤΗΤΕΣ ΓΙΑ ΠΕΡΑΙΤΕΡΩ ΒΕΛΤΙΩΣΗ ΤΗΣ ΜΕΘΟΔΟΥ."]},{"key":"dc:title","label":"Title","values":["ΑΝΑΛΥΣΗ ΚΑΙ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΔΙΚΤΥΩΝ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ","ANALYSIS AND OPTIMIZATION OF LARGE-SCALE NETWORKS"]}]}],"canonical_facts":{"dc:creator":["Μάνεσης, Σταμάτης"],"dc:date":["1986"],"dc:description":["PROBLEMS OF ANALYSIS AND OPTIMIZATION OF LARGE SCALE NETWORKS PRESENT SERIOUS DIFFICULTIES OF A COMPUTATIONAL NATURE. SOLUTIONS TO SUCH PROBLEMS REQUIRE AMOUNTS OF COMPUTATION WHICH EXCEED THE COMPUTATIONAL CAPACITY USUALLY AVAILABLE.WITH THE AIM OF BY PASSING CERTAIN OF THE ABOVE MENTIONED COMPUTATIONAL DIFFICULTIES WE PROPOSE AN ALGORITHM FOR THE TRANSFORMATION AND REDUCTION OF SUCH LARGE SCALE NETWORKS, BASED ON A SEQUENCE OF ELEMENTARY NETWORK TRANSFORMATIONS. FURTHERMORE WE DEVELOP A TWO-LEVEL COMPUTATIONAL ALGORITHM BY MEANS OF WHICH THE REDUCED LARGE SCALE NETWORK AND EACH OF THE SUBNETWORKS OF THE LARGE SCALE NETWORK ARE ANALYZED AND OPTIMIZED REPEATEDLY. THE DECOMPOSITION OF THE LARGE SCALE PROBLEM AND THE EFFECTIVE COORDINATION OF THE SUBPROBLEMS LEADS TO A FASTER RESPONSE, WHILE CERTAIN DIFFICULTIES ARISING FROM THE SIZE OF THE PROBLEM ARE ALSO OVERCOMED.","Η ΔΙΑΤΡΙΒΗ ΑΥΤΗ ΑΣΧΟΛΕΙΤΑΙ ΜΕ ΤΟ ΣΥΝΘΕΤΟ ΠΡΟΒΛΗΜΑ ΤΗΣ ΑΝΑΛΥΣΗΣ ΚΑΙ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗΣ ΗΛΕΚΤΡΙΚΩΝ ΔΙΚΤΥΩΝ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ. ΤΟ ΠΡΟΒΛΗΜΑ ΣΥΝΙΣΤΑΤΑΙ ΣΤΗΝ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΕΝΟΣ ΠΟΛΥΜΕΤΑΒΛΗΤΟΥ ΚΡΙΤΗΡΙΟΥ ΣΕ ΣΥΝΔΥΑΣΜΟ ΜΕ ΤΗΝ ΙΚΑΝΟΠΟΙΗΣΗ ΜΕΓΑΛΟΥ ΑΡΙΘΜΟΥ ΜΗ ΓΡΑΜΜΙΚΩΝ ΙΣΟΤΙΚΩΝ ΠΕΡΙΟΡΙΣΜΩΝ ΠΟΥ ΠΗΓΑΖΟΥΝ ΑΠΟ ΤΗΝ ΕΦΑΡΜΟΓΗ ΤΩΝ ΝΟΜΩΝ ΤΟΥ KIRCHHOFF ΣΕ ΗΛΕΚΤΡΙΚΑ ΔΙΚΤΥΑ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ. Η ΠΡΟΤΕΙΝΟΜΕΝΗ ΜΕΘΟΔΟΣ ΑΚΟΛΟΥΘΕΙ ΤΗΝ ΔΙΕΘΝΗ ΕΡΕΥΝΗΤΙΚΗ ΤΑΣΗ ΓΙΑ ΔΙΑΣΠΑΣΜΕΝΗ ΛΥΣΗ. ΕΤΣΙ, ΤΟ ΣΥΝΘΕΤΟ ΠΡΟΒΛΗΜΑ ΔΙΑΣΠΑΤΑΙ ΣΕ ΥΠΟΠΡΟΒΛΗΜΑΤΑ ΑΝΤΙΣΤΟΙΧΑ ΜΕ ΤΑ ΘΕΩΡΟΥΜΕΝΑ ΥΠΟΔΙΚΤΥΑ. ΤΑ ΥΠΟΔΙΚΤΥΑ ΜΕΤΑΣΧΗΜΑΤΙΖΟΝΤΑΙ ΣΕ ΙΣΟΔΥΝΑΜΑ ΜΙΚΡΟΤΕΡΗΣ ΤΑΞΗΣ, ΠΡΑΓΜΑ ΠΟΥ ΕΠΙΤΡΕΠΕΙΤΗΝ ΔΙΑΤΥΠΩΣΗ ΕΝΟΣ ΑΠΛΟΠΟΙΗΜΕΝΟΥ ΠΡΟΒΛΗΜΑΤΟΣ ΣΥΝΤΟΝΙΣΜΟΥ ΤΩΝ ΥΠΟΠΡΟΒΛΗΜΑΤΩΝ. Ο ΣΥΝΤΟΝΙΣΜΟΣ ΕΠΙΤΥΓΧΑΝΕΤΑΙ ΜΕ ΤΗΝ ΟΡΓΑΝΩΣΗ ΕΝΟΣ ΔΙΕΠΙΠΕΔΟΥ ΙΕΡΑΡΧΙΚΟΥ ΣΧΗΜΑΤΟΣ ΣΤΟ ΟΠΟΙΟ ΑΝΑΤΙΘΕΤΑΙ ΤΟ ΟΛΟ ΥΠΟΛΟΓΙΣΤΙΚΟ ΕΡΓΟ. ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ, ΕΦΑΡΜΟΓΗΣ ΤΗΣ ΜΕΘΟΔΟΥ ΣΕ ΠΡΑΚΤΙΚΑ ΠΑΡΑΔΕΙΓΜΑΤΑ, ΣΥΓΚΡΙΝΟΝΤΑΙ ΙΚΑΝΟΠΟΙΗΤΙΚΑ ΜΕ ΑΝΤΙΣΤΟΙΧΑ ΜΙΑΣ ΚΕΝΤΡΙΚΗΣ ΛΥΣΗΣ, ΚΑΙ ΠΑΡΕΧΟΥΝ ΔΥΝΑΤΟΤΗΤΕΣ ΓΙΑ ΠΕΡΑΙΤΕΡΩ ΒΕΛΤΙΩΣΗ ΤΗΣ ΜΕΘΟΔΟΥ."],"dc:identifier":["10.12681/eadd/0238","http://hdl.handle.net/10442/hedi/0238"],"dc:language":["gre"],"dc:publisher":["University of Patras","Πανεπιστήμιο Πατρών"],"dc:subject":["Βελτιστοποίηση","ΔΙΑΣΠΑΣΗ-ΣΥΝΤΟΝΙΣΜΟΣ","Ηλεκτρικά δίκτυα και συστήματα","ΜΕΤΑΣΧΗΜΑΤΙΣΜΟΙ ΔΙΚΤΥΩΝ","Συστήματα μεγάλης κλίμακας","DECOMPOSITION-COORDINATION","LARGE SCALE SYSTEMS","LOAD DISPATCHING","NETWORK TRANSFORMATIONS","Optimization","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Ηλεκτρολόγου Μηχανικού, Ηλεκτρονικού Μηχανικού, Μηχανικού Η/Υ","Engineering and Technology","Electrical Engineering, Electronic Engineering, Information Engineering"],"dc:title":["ΑΝΑΛΥΣΗ ΚΑΙ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΔΙΚΤΥΩΝ ΜΕΓΑΛΗΣ ΚΛΙΜΑΚΑΣ","ANALYSIS AND OPTIMIZATION OF LARGE-SCALE NETWORKS"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:25:08Z"}