Fabrication and Test of a 40 T Long-Pulse Magnet Driven by Battery Bank

A 40 T long-pulse magnet has been constructed and tested to 32 T with total pulse width of 1.5 s at the Wuhan National High Magnetic Field Center (WHMFC). The magnet is energized by a battery bank power source consisting of 900 12 V/200 Ah lead-acid battery cells. The magnet consists of a polyhelix...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2014-06, Vol.24 (3), p.1-4
Main Authors: Lv, Yiliang, Peng, Tao, Wang, Guobin, Ding, Tonghai, Xiao, Houxiu, Pan, Yuan, Li, Liang
Format: Article
Language:English
Subjects:
Applied sciences
Batteries
Battery bank power source
Coils
Copper
copper foil coil
Direct energy conversion and energy accumulation
Eddy currents
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Electromagnetic forces
Electromagnets
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
long pulse magnet
Magnetic fields
polyhelix
Power electronics, power supplies
Superconducting magnets
Various equipment and components
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A 40 T long-pulse magnet has been constructed and tested to 32 T with total pulse width of 1.5 s at the Wuhan National High Magnetic Field Center (WHMFC). The magnet is energized by a battery bank power source consisting of 900 12 V/200 Ah lead-acid battery cells. The magnet consists of a polyhelix inner coil and an outer coil wound with copper foil. We made some improvements by adding axial slots on the helices due to the eddy current electromagnetic force, and each layer of helices is reinforced by Zylon-epoxy composite. The copper foil coil is insulated with polyimide film extending over the sides of the foil. The copper bar electrode is silver brazed on the ends of copper foil and has been proved to be quite feasible. In this paper, the calculated results of the electromagnetic force caused by eddy current will be presented. The magnet manufacture techniques will be described and the magnet test results will be listed and analyzed.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2013.2286095