NDLI: Analysis and Experiment of Battery Bank Power Supply System for Long Pulse Helical Magnet in WHMFC

Content Provider	IEEE Xplore Digital Library
Author	Tonghai Ding Yue Ma Hui Chen Yiliang Lv Xiaotao Han Liang Li Yuan Pan
Copyright Year	2002
Abstract	Traditionally, pulse capacitor and pulse generator power supply are frequently used to energize pulse high magnet up to 100 T, but they are not the ideal power supply for long pulse and low ripple high magnetic field so that they cannot meet higher requirement of science research and wider application in industry. In Wuhan National High Magnetic Field Center (WHMFC), a new type power supply system which uses lead-acid batteries has been developed to output more energy and longer pulse than capacitor bank, and also output more steady voltage and smaller current ripple than pulse generator using ac/dc convertor. The battery power supply is a new application that valve-regulated lead-acid battery (VRLA) is used in high-rate discharge with pulse current 2 kA/2 s or peak 2.5 kA/1 s, and it is not unnecessary to analyze the changes of internal resistance and main factors which influence the battery life under the high current discharge. Based on the simulation analysis of the battery bank system, the structure and parameters including charge and discharge circuit of battery bank which can output maximum 35 kA/1 s under 770 V are designed. The tests of battery bank discharge, current sharing among the 15 parallel branches, and experiment of the helical magnet 32 T/1.5 s as battery bank outputs 34.5 kA/0.8 s are presented.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	4
Page Count	4
File Size	629205
File Format	PDF
ISSN	10518223
Volume Number	24
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Batteries Thyristors Superconducting magnets Discharges (electric) Power supplies Resistors Capacitors valve-regulated lead-acid battery (VRLA) Battery bank long pulse high magnetic field
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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