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논문 기본 정보

자료유형
학술저널
저자정보
Ping Wang (Tianjin University) Chendong Zhao (Tianjin University) Yun Zhang (Tianjin University) Jing Li (University of Nottingham) Yongping Gao (Tianjin University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.17 No.2
발행연도
2017.3
수록면
334 - 345 (12page)

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초록· 키워드

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In order to meet the increasing needs of the hybrid energy source system for electric vehicles, which demand bidirectional power flow capability with a wide-voltage-conversion range, a bidirectional three-level DC-DC converter and some control strategies for hybrid energy source electric vehicles are proposed. The proposed topology is synthesized from Buck and Boost three-level DC-DC topologies with a high voltage-gain and non-extreme duty cycles, and the bidirectional operation principle is analyzed. In addition, the inductor current ripple can be effectively reduced within the permitted duty cycle range by the coordinated control between the current fluctuation reduction and the non-extreme duty cycles. Furthermore, benefitting from duty cycle disturbance control, series-connected capacitor voltages can also be well balanced, even with the discrepant rise and fall time of power switches and the somewhat unequal capacitances of series-connected capacitors. Finally, experiment results of the bidirectional operations are given to verify the validity and feasibility of the proposed converter and control strategies. It is shown to be suitable for hybrid energy source electric vehicles.

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Abstract
I. INTRODUCTION
II. TOPOLOGY OF THE BIDIRECTIONAL THREE-LEVEL DC-DC CONVERTER
III. CONTROL STRATEGIES
IV. PARAMETERS DESIGN OF THE CONVERTER
V. EXPERIMENT RESULTS AND ANALYSIS
VI. CONCLUSIONS
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2017-560-002321182