Slot leakage field and inductance computation are, in general, nontrivial tasks in the analysis of electric machines equipped with semiclosed slots, even under the hypothesis of neglecting magnetic saturation. This paper proposes an analytical method to evaluate the slot leakage field and inductances in dual-layer distributed winding machines, extending the results of a previous work where the single-layer winding design was addressed. A direct solution to Poisson’s differential equation in the slot domain is found by suitably defining boundary conditions in the slot opening area. Boundary conditions are defined exploiting the analytical form taken by the magnetic field in the neighborhood of ferromagnetic corner-shaped regions. The presented approach is successfully validated against finite element simulations.
Analytical Determination of Slot Leakage Field and Inductances of Electric Machines With Double-Layer Windings and Semiclosed Slots
TESSAROLO, ALBERTO
2015-01-01
Abstract
Slot leakage field and inductance computation are, in general, nontrivial tasks in the analysis of electric machines equipped with semiclosed slots, even under the hypothesis of neglecting magnetic saturation. This paper proposes an analytical method to evaluate the slot leakage field and inductances in dual-layer distributed winding machines, extending the results of a previous work where the single-layer winding design was addressed. A direct solution to Poisson’s differential equation in the slot domain is found by suitably defining boundary conditions in the slot opening area. Boundary conditions are defined exploiting the analytical form taken by the magnetic field in the neighborhood of ferromagnetic corner-shaped regions. The presented approach is successfully validated against finite element simulations.File | Dimensione | Formato | |
---|---|---|---|
Analytical Determination of Slot Leakage Field and Inductances of Electric Machines With Double-Layer Windings and Semiclosed Slots.pdf
Accesso chiuso
Descrizione: pdf editoriale
Tipologia:
Documento in Versione Editoriale
Licenza:
Digital Rights Management non definito
Dimensione
666.33 kB
Formato
Adobe PDF
|
666.33 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
leakage field.pdf
accesso aperto
Descrizione: pdf post-print
Tipologia:
Bozza finale post-referaggio (post-print)
Licenza:
Digital Rights Management non definito
Dimensione
1.05 MB
Formato
Adobe PDF
|
1.05 MB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.