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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hays, S.L. Claypool, B. Foster, G.W. |
| Copyright Year | 2002 |
| Abstract | A 1.5 volt 100000 A DC switcher power supply was developed for testing a superferric magnet string at Fermi National Accelerator Laboratory, 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 muOmega. The supply consists of ten paralleled switcher cells, powered by a 400 V/600 A 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 V/10000 A. 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 |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 1626 |
| Ending Page | 1629 |
| Page Count | 4 |
| File Size | 555334 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 16 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Power supplies Testing Feedback Control systems Magnetic switching Life estimation Accelerator magnets Laboratories Insulated gate bipolar transistors Switching frequency DC-DC power conversion Accelerator power supplies |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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