Progress on PEP-II magnet power conversion system
- Stanford Linear Accelerator Center, Menlo Park, CA (United States)
- Lawrence Berkeley National Lab., CA (United States)
- Lawrence Livermore National Lab., CA (United States)
The various power systems for supplying the PEP-II DC magnets rely exclusively on switchmode conversion, utilizing a variety of means depending on the requirements. All of the larger power supplies, ranging from 10 to 200 kW, are powered from DC sources utilizing rectified 480 V AC. Choppers can be used for the series connected strings, but for smaller groups and individual magnets, inverters driving high-frequency transformers with rectifiers comprise the best approach. All of the various systems use a ``building block`` approach of multiple standard-size units connected in series or parallel to most cost-effectively deal with a great range of voltage and current requirements. Utilization of existing infrastructure from PEP-I has been a cost-effective determinant. Equipment is being purchased either off-the-shelf, through performance specification, or by hardware purchase based on design-through-prototype. The corrector magnet power system, utilizing inexpensive, off-the-shelf, four-quadrant switching motor-controllers, has already proven very reliable: 120 of the total of 900 units have been running on the injection system for four months with no failures.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098; AC03-76SF00515; W-7405-ENG-48
- OSTI ID:
- 505667
- Report Number(s):
- UCRL-JC-126951; CONF-960621-41; ON: DE97053188; TRN: 97:019110
- Resource Relation:
- Conference: EPAC `96: 5. European particle accelerator conference, Barcelona (Spain), 10-14 Jun 1996; Other Information: PBD: 4 Jun 1996
- Country of Publication:
- United States
- Language:
- English
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