Abstract

Soft switching inverter technology was examined as a means of increasing the efficiency and reducing the noise of the inverters used to drive motors in hybrid electric vehicles and fuel cell vehicles. From the various soft switching circuit topologies available, AC link inverters were selected as the research focus, because they can be used in high-power applications and require few additional circuit components. Specifically, single inductor auxiliary resonant AC link inverter was worked out to further reduce the number of inductors. Comparisons with hard switching inverters showed a 0.5% improvement in efficiency. In addition, conduction noise was reduced at almost all frequency bands and radiation noise was reduced at all frequency bands, and demonstrated maximum reductions of 10dB and 20dB respectively.

References

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Author (organization or company)

• Katsuhiko FURUKAWA（Tochigi R&D Center）
• Sadao SHINOHARA（Tochigi R&D Center）

Publication Information

Article of Honda R&D Technical Review Vol.15 No.2 (101 - 108)

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Citation Information