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Title: The 100,000 amp dc power supply for a staged hadron collider superferric magnet

Abstract

A 1.5 volt 100,000 amp DC switcher power supply was developed for testing a superferric magnet string at FNAL. This supply was used during testing as both the ramping supply and holding supply powering a single magnet load with a total load resistance of 0.7{micro} Ohms. The supply consists of ten paralleled switcher cells, powered by a 400 volt/600 Amp DC power supply. Each cell consists of an IGBT H-bridge driving a step-down transformer at a switching frequency of 2 kHz. The transformer has an effective turns ratio of 224:1. The secondary consists of 32 parallel single-turn full wave rectifier windings. The rectification is done with 64 Shottky diodes. Each cell is rated at 1.5 volts/10,000 amps. During this test each cell was operated as a constant power source without load current or field feedback. This paper will describe the design of the switcher cell and control system used during testing. We will also describe the next level of improvements to the current feedback system to improve the ramp control.

Authors:
; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
15020392
Report Number(s):
FERMILAB-CONF-05-378-AD
TRN: US200606%%253
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Conference
Resource Relation:
Conference: Presented at MT-19: 19th International Conference on Magnet Technology, Genova (Genoa), Italy, 18-23 Sep 2005
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; AVAILABILITY; CONTROL SYSTEMS; DESIGN; FEEDBACK; HADRONS; MAGNETS; RECTIFIERS; TESTING; TRANSFORMERS; Accelerators

Citation Formats

Hays, Steven L, Claypool, Bradley, Foster, G William, and /Fermilab. The 100,000 amp dc power supply for a staged hadron collider superferric magnet. United States: N. p., 2005. Web.
Hays, Steven L, Claypool, Bradley, Foster, G William, & /Fermilab. The 100,000 amp dc power supply for a staged hadron collider superferric magnet. United States.
Hays, Steven L, Claypool, Bradley, Foster, G William, and /Fermilab. 2005. "The 100,000 amp dc power supply for a staged hadron collider superferric magnet". United States. https://www.osti.gov/servlets/purl/15020392.
@article{osti_15020392,
title = {The 100,000 amp dc power supply for a staged hadron collider superferric magnet},
author = {Hays, Steven L and Claypool, Bradley and Foster, G William and /Fermilab},
abstractNote = {A 1.5 volt 100,000 amp DC switcher power supply was developed for testing a superferric magnet string at FNAL. This supply was used during testing as both the ramping supply and holding supply powering a single magnet load with a total load resistance of 0.7{micro} Ohms. The supply consists of ten paralleled switcher cells, powered by a 400 volt/600 Amp DC power supply. Each cell consists of an IGBT H-bridge driving a step-down transformer at a switching frequency of 2 kHz. The transformer has an effective turns ratio of 224:1. The secondary consists of 32 parallel single-turn full wave rectifier windings. The rectification is done with 64 Shottky diodes. Each cell is rated at 1.5 volts/10,000 amps. During this test each cell was operated as a constant power source without load current or field feedback. This paper will describe the design of the switcher cell and control system used during testing. We will also describe the next level of improvements to the current feedback system to improve the ramp control.},
doi = {},
url = {https://www.osti.gov/biblio/15020392}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2005},
month = {Thu Sep 01 00:00:00 EDT 2005}
}

Conference:
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