论文信息 - Low temperature performance of a boost converter with MPP and HTS inductors

Low temperature performance of a boost converter with MPP and HTS inductors

Low temperature performance of a 150 W, 50 kHz, 24/48 V boost PWM DC-to-DC power converter is reported. The efficiency of the power converter using a molypermalloy powder (MPP) core based inductor went up from 94% at room temperature (23/spl deg/C) to 95.9% at liquid nitrogen temperature (-196/spl deg/C). A BSCCO based high temperature superconducting (HTS) inductor with a transition temperature of approximately -158/spl deg/C was compared to a MPP core based inductor in terms of the power converter performance at liquid nitrogen temperature. The use of the HTS inductor in the power converter tested yielded no significant performance improvement over the same power converter with the MPP inductor. The experimental results are discussed along with the HTS inductor characteristics.

Richard L. Patterson | B. Ray | S. Gerber | J. E. Dickman

[1] A. Perin,et al. A model for the critical current in (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed tapes: The role of small-angle c-axis grain boundaries and of the texture , 1993 .

[2] Tore Undeland,et al. Power Electronics: Converters, Applications and Design , 1989 .

[3] Richard L. Patterson,et al. Liquid Nitrogen Temperature Operation of a Switching Power Converter , 1995 .

[4] P. Metra,et al. AC Losses in Bi-2223 Composite Tapes , 1994 .

[5] K. Kwasnitza,et al. Specific Aspects of AC Losses in High-TC Superconductors , 1994 .

[6] S. Menhart,et al. The low temperature switching performance of thyristors and MOSFETs , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[7] O. Mueller,et al. On-resistance, thermal resistance and reverse recovery time of power MOSFETs at 77 K , 1989 .