Design and simulation of high accuracy power supplies for injector synchrotron dipole magnets
The ring magnet of the injector synchrotron consists of 68 dipole magnets. These magnets are connected in series and are energized from two feed points 180{degrees} apart by two identical 12-phase power supplies. The current in the magnet will be raised linearly at about 1 kA level, and after a small transition period (1 ms to 10 ms typical) the current will be reduced to below the injection level of 60 A. The repetition time for the current waveform is 500 ms. A relatively fast voltage loop along with a high gain current loop are utilized to control the current in the magnet with the required accuracy. Only one regulator circuit is used to control the firing pulses of the two sets of identical 12-phase power supplies. Pspice software was used to design and simulate the power supply performance under ramping and investigate the effect of current changes on the utility voltage and input power factor. A current ripple of {plus minus}2{times}10{sup {minus}4} and tracking error of {plus minus}5{times}10{sup {minus}4} was needed. 3 refs., 5 figs.
- Research Organization:
- Argonne National Lab., IL (USA)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5935528
- Report Number(s):
- ANL/CP-73041; CONF-910505-41; ON: DE91011993
- Resource Relation:
- Conference: 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991
- Country of Publication:
- United States
- Language:
- English
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A high-current, high-voltage power supply with special output current waveform APS injector synchrotron dipole magnets
A high-current, high-voltage power supply with special output current waveform for APS injector synchrotron dipole magnets