|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 5 van 8 gevonden artikelen
| Titel: |
MINIMUM AIRGAP-PERMEANCE DATA FOR THE DOUBLY-SALIENT POLE STRUCTURES COMMON IN VARIABLE-RELUCTANCE MACHINES |
| Auteur: |
Torrey, David A. Tormey, David P. |
| Verschenen in: |
Electric power components & systems |
| Paginering: | Jaargang 24 (1996) nr. 2 pagina's 211-225 |
| Jaar: |
1996-03-01 |
| Inhoud: |
This paper presents minimum airgap-permeance data for doubly salient pole structures, such as those common in variable-reluctance motors (VRMs). The data are derived from a finite element analysis of a family of doubly salient pole structures. The ratio of the rotor interpolar arc to the stator pole arc and the ratio of rotor pole undercut to rotor interpolar arc length are identified as the critical parameters governing minimum airgap permeance. The data are normalized to the active axial length of the motor, and are independent of the active radius of the motor. The numerical permeance data are compared to experimental data. The experimental data provide information on third dimension effects, and also indicate that localized pole tip saturation occurs at very low values of exciting current when the effective airgap is small. The numerical permeance data are used to compute minimum inductance for three VRMs which have been experimentally characterized. Comparison of the computed and measured values are consistent with the other experimental results, indicating that third dimension effects comprise a significant portion of the measured minimum inductance for VRMs with a small axial-length to active-radius ratio. A second comparison is made between the data presented here and the conventional flux tube analysis, and indicates that the finite element data are more accurate than those obtained with flux tubes and are easier to implement. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 8 gevonden artikelen
| << vorige | volgende >> |