The current distribution on the elementary conductors of the Roebel bar

Author

Dordea, Toma ; Torac, Ileana ; Madescu, Gheorghe ; Proca, Victor ; Mot, Martian ; Ocolisan, Lucian

Author_Institution

Timisoara Branch, Romanian Acad., Timisoara, Romania

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

5

Abstract

The paper deals with the Roebel bar losses computation. It was considered the most general Roebel bar structure, including both solid and hollow elementary conductors. One proposes an analytical method for the estimation of the currents in the elementary conductors, as function on the geometrical dimensions and material data. It is possible to emphasize also the current density distribution on the cross section of each elementary conductor. The radial field in the slot area and that in the end coil area were taken in to account. One can analyze the influence of any quantities (machine and material data) on the Roebel bar losses. Therefore, the proposed method is very useful to optimize the bar structure, for the machine efficiency improvement.

Keywords

conductors (electric); current density; current distribution; Roebel bar losses computation; Roebel bar structure; current density distribution; elementary conductors; end coil area; geometrical dimensions; machine efficiency improvement; material data; radial field; slot area; Bars; Coils; Conductors; Current density; Current distribution; Electrical engineering; Strips; Roebel bar optimization; additional losses computation; analytical method; losses estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2010 XIX International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-4174-7

Electronic_ISBN

978-1-4244-4175-4

Type

conf

DOI

10.1109/ICELMACH.2010.5607924

Filename

5607924