Topology and control method of interleaved parallel DC/DC converters with ripple compensation for fuel cell applications

Yong Shi; Zhikang Che; Bao Xie; Di Xie; LiangLiang Wang; Jigang Yao

Topology and control method of interleaved parallel DC/DC converters with ripple compensation for fuel cell applications

Vol. 25, No. 4, pp. 642-653, Apr. 2025

10.1007/s43236-024-00919-w

PEMFC

DC/DC

Ripple elimination

Phase switching method

Abstract

Interleaved topologies are commonly adopted in fuel cell DC/DC converters to eliminate current ripple. However, in lowpower operations, multi-phase interleaved DC/DC converters affect the efficiency of DC/DC converters. To meet the requirements of low ripple and high efficiency of interleaved boost converters in low-power operation, an interleaved fuel cell DC/DC converter with a buck-boost ripple-compensation circuit is proposed in this study. This topology achieves ripple elimination by generating a waveform that is opposite to the input current ripple in the main circuit through a ripple-compensation branch. In addition, a phase-switching control strategy for interleaved parallel circuits is proposed to tackle the efficiency issues during low-power operation. The effectiveness of the proposed method is verified through experimental results.

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Cite this article

[IEEE Style]

Y. Shi, Z. Che, B. Xie, D. Xie, L. Wang, J. Yao, "Topology and control method of interleaved parallel DC/DC converters with ripple compensation for fuel cell applications," Journal of Power Electronics, vol. 25, no. 4, pp. 642-653, 2025. DOI: 10.1007/s43236-024-00919-w.

[ACM Style]

Yong Shi, Zhikang Che, Bao Xie, Di Xie, LiangLiang Wang, and Jigang Yao. 2025. Topology and control method of interleaved parallel DC/DC converters with ripple compensation for fuel cell applications. Journal of Power Electronics, 25, 4, (2025), 642-653. DOI: 10.1007/s43236-024-00919-w.