NDLI: Calculation of leakage reactance for HTS transformer windings with magneto-motive force imbalance

Content Provider	IEEE Xplore Digital Library
Author	Xiaosong Li Qiaofu Chen Suping Wu Yusheng Zhou
Copyright Year	2008
Description	Author affiliation: Huazhong Univ. of Sci. & Technol., Wuhan (Qiaofu Chen) \|\| Electron. & Inf. Eng. Coll., Changsha Univ. of Sci. & Technol., Changsha (Xiaosong Li; Suping Wu; Yusheng Zhou)
Abstract	In HTS transformer the ampere-turn distribution of the windings is usually made lower density than in the conventional transformer for decreasing the magnetic field. Moreover, in our study the secondary winding, different from the primary which is pancake, is chosen helical for cutting down the circulating current among the branches. So there is a difference of magnetomotive force at the same height of the primary and secondary windings. In this paper, a leakage reactance is calculated on the HTS transformer windings with the different types and ldquoHV-LV-HV rdquo arrangement on a core limb. An equivalent transformation is proposed about an uneven distributed magneto-motive force, and the effect of some factors on the leakage reactance is analyzed such as the pancake numbers and the gap lengths between two pancakes of the primary. The method is verified valid by the result based on the calculation of leakage magnetic field by finite element method (FEM).
Starting Page	4507
Ending Page	4512
File Size	532727
Page Count	6
File Format	PDF
ISBN	9781424438266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	IEEE Consumer Electronics Society(CES)
Subject Keyword	High temperature superconductors Windings Superconducting magnets Coils Magnetic fields Transformer cores Magnetic cores Power transformer insulation Finite element methods Magnetic analysis FEM Equivalent transformation about uneven distributed magneto-motive force Leakage reactance calculation
Content Type	Text
Resource Type	Article

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Calculation of leakage reactance for HTS transformer windings with magneto-motive force imbalance

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