移相控制的双有源桥DC-DC变换器统一相量分析法

doi:10.19595/j.cnki.1000-6753.tces.161138

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Abstract A unified phasor analytical method is introduced in this paper to analyze the control and power characteristics of bi-directional dual-active-bridge dc-dc converter under all phase-shift control strategies. Fourier transform theory is utilized to translate time-domain differential equation of ac-ac stage in dc-dc converter into steady-state phasor expression. Hence, the phasor diagrams are plotted. The respective control regions for single-phase-shift control, extended-phase-shift control and dual-phase-shift control are proposed. A uniform complex power model is built which holds for all phase-shift controls. The simulations and experimental results show good coherence to the theoretical analysis, and also show the applicability and creditability of the proposed model and unified phasor analytical method.

Key words： Dual-active-bridge DC-DC converter phase-shift control power model phasor analytical method

Published: 10 October 2017

PACS:

TM46

Fund:国家自然科学基金项目（51077125,51577187）和国家电网公司基础前瞻性科技项目（PD71-17-024）资助

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	Sha Guanglin
	Wang Cong
	Cheng Hong
	Deng Jiaqing
	Wang Jianyu

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Sha Guanglin,Wang Cong,Cheng Hong等. Unified Phasor Analytical Method for Bi-Directional Dual-Active-Bridge DC-DC Converter under Phase-Shift Control[J]. Transactions of China Electrotechnical Society, 2017, 32(18): 175-185.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.161138 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I18/175

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