Development of Large Current High Precision Pulse Power Supply
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- Takayanagi Tomohiro
- Tokai Research Establishment, Japan Atomic Energy Agency (JAEA)
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- Koseki Shoichiro
- Information & Contol System Division, Hitachi, Ltd.
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- Kubo Hiroshi
- Information & Contol System Division, Hitachi, Ltd.
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- Katoh Shuji
- Hitachi Research Laboratory, Hitachi, Ltd.
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- Ogawa Shinichi
- Information & Contol System Division, Hitachi, Ltd.
Bibliographic Information
- Other Title
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- 高精度大電流パルス励磁電源の開発
- コウセイド ダイデンリュウ パルス レイジ デンゲン ノ カイハツ
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Abstract
JAEA and KEK are jointly constructing a high intensity proton accelerator project J-PARC. Its main accelerator is 3GeV synchrotron. Its injection bump magnets, especially horizontal paint bump magnets, are excited by large pulse currents. Their rated currents are over 10kA and pulse widths are about 1ms. Tracking errors are required to be less than 1%. Multiple connected two-quadrant IGBT choppers are adopted for their power supplies. Their output currents are controlled by feedback control with minor loop voltage control (m-AVR). When output current of a chopper intermits at small current, its output voltage rises up and current control becomes difficult. In this paper response of m-AVR and output voltage characteristics at current intermittent region are studied and an improved control scheme is proposed. The performance is confirmed by a test.
Journal
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- IEEJ Transactions on Industry Applications
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IEEJ Transactions on Industry Applications 127 (8), 813-821, 2007
The Institute of Electrical Engineers of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001204659037312
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- NII Article ID
- 10019521334
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- NII Book ID
- AN10012320
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- ISSN
- 13488163
- 09136339
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- NDL BIB ID
- 8906693
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed