ETD system

Electronic theses and dissertations repository

 

Tesi etd-04122020-203201


Thesis type
Tesi di laurea magistrale
Author
PASQUINELLI, MARCELLO GINO
email address
m.pasquinelli@studenti.unipi.it, marcelloginopasquinelli@gmail.com
URN
etd-04122020-203201
Title
Modeling and Design of a High-Speed Wound-Field Synchronous Generator for Aerospace Applications
Struttura
INGEGNERIA DELL'ENERGIA, DEI SISTEMI, DEL TERRITORIO E DELLE COSTRUZIONI
Corso di studi
INGEGNERIA ELETTRICA
Supervisors
relatore Prof. Bolognesi, Paolo
relatore Prof. Nuzzo, Stefano
correlatore Prof. Galea, Michael
Parole chiave
  • Progettazione macchine elettriche
  • Generatore ad alta velocità
  • Aircraft generator
  • High speed generator
  • Analytical model
  • More electric aircraft (MEA)
  • Generatore sincrono
  • Synchronous generator
  • Electrical machine design
  • Modello analitico
  • Generatore per aerei
Data inizio appello
27/05/2020;
Consultabilità
Secretata d'ufficio
Data di rilascio
27/05/2090
Riassunto analitico
This master thesis, developed in collaboration with the University of Nottingham Ningbo China, provides the modeling and design of a high-speed, wound-field synchronous generator intended for aerospace applications, in line with the recent trend in the related field known as more electric aircraft (MEA).
Firstly, there is a brief overview of the on-board power systems, focusing on the main electrical loads, on the historical development of power generators and on the recent MEA trend. Then, a detailed description of the analytical models employed for the design is provided and a comparison between analytical and finite element (FE) results for an existing salient-pole synchronous generator is performed for validation purposes.The design of the high-speed wound-field synchronous generator is divided into 3 main phases:

•Starting from the technical specification, a preliminary design is carried out using a simplified numerical-analytical model;
•The resulting geometry is implemented in a more sophisticated numerical-analytical model, which allows a deeper and more accurate analysis of the electromagnetic performance keeping a low computational cost;
•A 2D FE model is built for the electromagnetic design refinement of the generator;
•A 3D FE model is built for the structural analysis of the designed generator.

The final version achieves the performance requirements initially assumed, proving that a high-speed, wound-field synchronous machine is a potential candidate for power generation purposes on-board of aircraft, which can ensure reliability and controllability levels not achievable with its permanent magnet counterpart.
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