Four quadrant 250KW switchmode power supply for Fermilab Main Injector

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A +/-700 volt,+/-350 amp switchmode power supply has been developed for Fermilab Main Injector Sextupole Correction System. The four quadrant operation is accomplished by using four IGBTs in an H-bridge configuration with a switching frequency of 10 KHz. Current regulation bandwidth of 300 Hz is achieved with stability better than 250 ppm of rated current by using a high precision current transducer. The H-bridge outputs are filtered resulting in a maximum output voltage ripple of 2.5 volts peak to peak. The power supply has power conversion efficiency better than 80% and works at near unity power factor throughout its operation. ... continued below

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137 Kilobytes

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Si Fang, George Krafczyk, Howie Pfeffer and Dan Wolff April 8, 1999.

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Description

A +/-700 volt,+/-350 amp switchmode power supply has been developed for Fermilab Main Injector Sextupole Correction System. The four quadrant operation is accomplished by using four IGBTs in an H-bridge configuration with a switching frequency of 10 KHz. Current regulation bandwidth of 300 Hz is achieved with stability better than 250 ppm of rated current by using a high precision current transducer. The H-bridge outputs are filtered resulting in a maximum output voltage ripple of 2.5 volts peak to peak. The power supply has power conversion efficiency better than 80% and works at near unity power factor throughout its operation. The critical considerations involved in this power supply are low inductance bus plate and snubber design, selection and thermal management of IGBTs, IGBT gate drive, PWM output filtering, and fiber optic controls. The paper will discuss the design and performance of the power supply.

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137 Kilobytes

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  • Particle Accelerator Conference, PAC99, New York, New York, March 29-April 2, 1999

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  • Other: DE00005516
  • Report No.: FERMILAB-Conf-99/065
  • Grant Number: NONE
  • Office of Scientific & Technical Information Report Number: 5516
  • Archival Resource Key: ark:/67531/metadc690151

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • April 8, 1999

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • April 18, 2016, 2:42 p.m.

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Si Fang, George Krafczyk, Howie Pfeffer and Dan Wolff. Four quadrant 250KW switchmode power supply for Fermilab Main Injector, article, April 8, 1999; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc690151/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.