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논문 기본 정보

자료유형
학술대회자료
저자정보
Jun-ichi Itoh (Nagaoka University of Technology) Kengo Kawauchi (Nagaoka University of Technology) Hayato Higa (Nagaoka University of Technology) Hiroki Watanabe (Nagaoka University of Technology) Keisuke Kusaka (Nagaoka University of Technology)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2019-ECCE Asia
발행연도
2019.5
수록면
1,743 - 1,750 (8page)

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초록· 키워드

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This paper proposes a voltage control method for a Dual Active Bridge (DAB) converter with three-level operation in the dead-time effect region. The non-linear transmission power error is reduced by controlling the zero current phase to the dead-time or more because the nonlinear error of the transmission power occurs when the inductor current reaches zero during the dead-time. In addition, the voltage control is operated under the linear region which is decided from the output current and the zerovoltage period. The validation of the proposed method is confirmed by a 2.3-kW prototype. In the experiments, the non-linear error in the transmission power is reduced by 76.3%. The linearity between a control variable and an output current is confirmed. In addition, a load step between two modes of three-level operation is achieved without the dc offset in the inductor current. Moreover, the RMS value of the inductor current is reduced by 50.2% compared with the conventional triangular modulation.

목차

Abstract
I. INTRODUCTION
II. DEAD-TIME EFFECT ON TRANSMISSION POWER
III. NON-LINEAR ERROR COMPENSATION METHOD FOR TRANSMISSION POWER
IV. VOLTAGE CONTROL METHOD IN NON-LINEAR DEADTIME EFFECT REGION
V. EXPERIMENTAL RESULTS
VI. CONCLUSION
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