KIT | KIT-Bibliothek | Impressum | Datenschutz

An electromagnetic design of a fully superconducting generator for wind application

Liu, Y.; Grilli, F.; Cao, J.; Li, L.; Zhang, C.; Wang, M.; Xu, F.; Lin, J.; Noe, M. ORCID iD icon


A fully superconducting wind generator employs superconductors in stator and rotor to enable high torque density and low weight, that is, enable an ultra-light electric machine for wind application. However, the level of the AC loss of the stator armature coils is a critical issue, which lacks investigations in the design of the fully superconducting generators. In this paper, an in-house model was developed to analyze the potential of a fully superconducting generator by integrating the electromagnetic design with the AC loss estimation. The electromagnetic model was made through analytical equations, which take into consideration the geometry, the magnetic properties of iron, and the nonlinear E–J constitutive law of superconductors. Since the permeability of iron materials and the critical current of the superconductors depend on the magnetic field, an iteration process was proposed to find their operating points for every electromagnetic design. The AC loss estimation was carried out through finite element software based on the T–A formulation of Maxwell’s equations instead of analytical equations, due to the complexity of magnetic fields, currents and rotation. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000140904
Veröffentlicht am 08.12.2021
DOI: 10.3390/en14227811
Zitationen: 2
Web of Science
Zitationen: 1
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Physik (ITEP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1996-1073
KITopen-ID: 1000140904
HGF-Programm 38.05.03 (POF IV, LK 01) High Temperature Superconductivity
Erschienen in Energies
Verlag MDPI
Band 14
Heft 22
Seiten 7811
Vorab online veröffentlicht am 22.11.2021
Nachgewiesen in Dimensions
Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page