DocumentCode
2845370
Title
An investigation into improving the commutation of a DC machine
Author
Parsley, G.M.J. ; Landy, C.F. ; Meyer, A.S.
Author_Institution
Dept. of Electr. & Electron. Eng., Pretoria Univ., South Africa
fYear
1991
fDate
Sept. 28 1991-Oct. 4 1991
Firstpage
182
Abstract
A primitive slip-ring machine mode is used to describe a DC machine. From this model an expression is derived to describe the voltage which, if allowed to exceed a certain value, causes commutator sparking and is thus an indication of ineffective commutation. The expression for this voltage contains, interalia, two rotational inductances which are clearly dependant on the geometry of the machine. It is proposed that the finite element analysis should be used to determine what aspects of the machine geometry should be rearranged to adjust these rotational inductances with a view to reducing or eliminating this voltage and hence improve the commutation performance of the machine.<>
Keywords
DC machines; commutation; finite element analysis; machine theory; DC machine; commutator sparking; finite element analysis; rotational inductances; slip-ring machine mode; Africa; Coils; Commutation; DC machines; Geometry; Machine windings; Magnetic separation; Saturation magnetization; Testing; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Industry Applications Society Annual Meeting, 1991., Conference Record of the 1991 IEEE
Conference_Location
Dearborn, MI, USA
Print_ISBN
0-7803-0453-5
Type
conf
DOI
10.1109/IAS.1991.178152
Filename
178152
Link To Document