Title :
Investigation of magnetic wedge effects in large-scale BDFMs
Author :
Abdi, Samar ; Abdi, Ehsan ; Oraee, Ashknaz ; McMahon, A.
Author_Institution :
Electr. Eng. Div., Cambridge Univ., Cambridge, UK
Abstract :
This paper studies the effects of magnetic wedges on the equivalent circuit parameters of the Brushless Doubly-Fed Machine (BDFM). Magnetic wedges are used in slot openings of large electrical machines to reduce magnetizing currents, but the study of their effects on the BDFM performance is not straightforward due to the complex magnetic fields in the BDFM. Equivalent circuit and FE models have been developed for a 250 kW BDFM taking into account the effects of wedges and verified experimentally.
Keywords :
brushless machines; equivalent circuits; finite element analysis; magnetic field effects; FE models; brushless doubly-fed machine; complex magnetic fields; electrical machines; equivalent circuit parameters; large-scale BDFM; magnetic wedge effects; magnetizing currents; power 250 kW; slot openings; BDFM (Brushless Doubly Fed Machines); FEM (Finite Element Method); Magnetic Wedges;
Conference_Titel :
Renewable Power Generation Conference (RPG 2013), 2nd IET
Conference_Location :
Beijing
Electronic_ISBN :
978-1-84919-758-8
DOI :
10.1049/cp.2013.1849
