dc.contributor.author |
Παπαϊωάννου, Χαρίλαος
|
el |
dc.contributor.author |
Papaioannou, Charilaos
|
en |
dc.date.accessioned |
2015-01-23T08:46:16Z |
|
dc.date.available |
2015-01-23T08:46:16Z |
|
dc.date.issued |
2015-01-23 |
|
dc.identifier.uri |
https://dspace.lib.ntua.gr/xmlui/handle/123456789/40098 |
|
dc.identifier.uri |
http://dx.doi.org/10.26240/heal.ntua.7873 |
|
dc.rights |
Default License |
|
dc.subject |
Φωτοβολταϊκό |
el |
dc.subject |
Ανιχνευτής σημείου μέγιστης ισχύος |
el |
dc.subject |
Aντιστροφέας |
el |
dc.subject |
Αλγόριθμοι ελέγχου |
el |
dc.subject |
Photovoltaic |
en |
dc.subject |
Maximum Power Point Tracker |
en |
dc.subject |
Inverter |
en |
dc.subject |
Control algorithms |
en |
dc.title |
Μελέτη αλγορίθμων ελέγχου σε φωτοβολταϊκό αντιστροφέα |
el |
heal.type |
bachelorThesis |
|
heal.classification |
Φωτοβολταϊκά |
el |
heal.classificationURI |
http://localhost:8080/healp/data/11/6/17 |
|
heal.language |
el |
|
heal.access |
free |
|
heal.recordProvider |
ntua |
el |
heal.publicationDate |
2014-10-24 |
|
heal.abstract |
Στην παρούσα εργασία μοντελοποιήθηκε και μελετήθηκε το συνολικό σύστημα μιας φωτοβολταϊκής εγκατάστασης συνδεδεμένης μέσω αντιστροφέα στο δίκτυο. Οι βαθμίδες που αποτελούν αυτή τη μονάδα διεσπαρμένης παραγωγής είναι το φωτοβολταϊκό πεδίο, ο ανιχνευτής σημείου μέγιστης ισχύος (MPPT), ο αντιστροφέας και ασφαλώς το κεντρικό δίκτυο. Για τη μελέτη του συστήματος που αναφέρθηκε, έγινε μοντελοποίηση όλων των επιμέρους στοιχείων που το αποτελούν τόσο στο Simulink του Matlab, όσο και στον εξειδικευμένο προσομοιωτή RTDS του εργαστηρίου Συστημάτων Ηλεκτρικής Ενέργειας. Στη συνέχεια μέσω των κατάλληλων προσομοιώσεων κατέστη εφικτή η μελέτη του συστήματος. |
el |
heal.abstract |
In this diploma thesis we modelled and studied an overall photovoltaic system connected to the grid through an inverter. This distributed energy resource unit consists of the photovoltaic field, the maximum power point tracker (MPPT), the inverter and certainly the main grid.
In order to study the system, all the individual parts, that compose it, were modelled both in Simulink/Matlab and in the specialized simulator RTDS of the Power Systems Laboratory. Then, through appropriate simulations the system was studied in detail.
Although detailed models of all levels are presented below, the main subject of this thesis relies on the control strategies used in inverter design. Different algorithms that meet the system requirements were implemented. Their steady state and transient responses were also studied and compared.
The present thesis is divided in seven chapters. Chapter 1 gives a brief introduction to renewable energy sources and specifically photovoltaic systems. Chapter 2 contains the equivalent circuit of the photovoltaic cell, the algorithm used to find the equivalent resistors and the simulations performed in Matlab. Chapter 3 presents the model of the maximum power point tracker (MPPT), the accuracy of which is verified through simulation. In chapter 4 we introduce power inverters and basic concepts of control theory while chapter 5 presents in detail the specific algorithms studied in this paper.
The most important chapters of this thesis are definitely 6 and 7 where we can find the control algorithms modeling as well as the comparison between them through the simulations performed in Matlab and RTDS. In the final part of the thesis, conclusions in addition to proposals for further study are stated. Finally, the code used in system modeling is given in the Annex. |
en |
heal.advisorName |
Χατζηαργυρίου, Νικόλαος |
el |
heal.committeeMemberName |
Γεωργιλάκης, Παύλος |
el |
heal.committeeMemberName |
Παπαθανασίου, Σταύρος |
el |
heal.academicPublisher |
Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών. Τομέας Ηλεκτρικής Ισχύος |
el |
heal.academicPublisherID |
ntua |
|
heal.numberOfPages |
106 σ. |
|
heal.fullTextAvailability |
true |
|