DocumentCode :
2342239
Title :
Cost-constrained selection of strand diameter and number in a Litz-wire transformer winding
Author :
Sullivan, Charles R.
Author_Institution :
Thayer Sch. of Eng., Dartmouth Coll., Hanover, NH, USA
Volume :
2
fYear :
1998
fDate :
12-15 Oct. 1998
Firstpage :
900
Abstract :
The design of litz-wire windings subject to cost constraints is analyzed. An approximation of normalized cost is combined with analysis of proximity effect losses to find combinations of strand number and diameter that optimally trade off cost and loss. The relationship between wire size, normalized cost and normalized loss is shown to have a general form that applies to a wide range of designs. A practical design procedure is provided, and applied to an example design, for which it leads to less than half the original loss at lower than the original cost, or under one fifth the original cost with the same loss as the original design.
Keywords :
costing; economics; transformer windings; transformers; cost constraints; design procedure; litz-wire transformer winding; normalized cost approximation; strand diameter; strand number; Conductors; Copper; Cost function; Design engineering; Educational institutions; Performance loss; Proximity effect; Skin effect; Windings; Wire;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
ISSN :
0197-2618
Print_ISBN :
0-7803-4943-1
Type :
conf
DOI :
10.1109/IAS.1998.730252
Filename :
730252
Link To Document :
بازگشت