Asymmetrical Duty Cycle Control and Decoupled Power Flow Design of a Three-port Bidirectional DC-DC Converter for Fuel Cell Vehicle Application

Wang, Lei; Wang, Zhan; Li, Hui

doi:10.1109/tpel.2011.2160405

Cited by 171 publications

(65 citation statements)

References 24 publications

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“…In [23,24], renewable source, battery and load are integrated to a three-port SR BDC. The driving frequency rises to 100 kHz, which is apparently higher than 20 kHz of TAB [19][20][21].…”

Section: Introductionmentioning

confidence: 82%

“…Then the light-load efficiency is elevated as the following result. Nevertheless, both The TAB converter, a research hotspot, is composed of three active bridges, three inductors and a three-winding transformer [17][18][19][20][21]. It possesses advantages such as galvanic isolation, bidirectional power flow, ZVS operation and phase shift control with fixed switching frequency, while the power coupling among the three ports makes the decoupling matrix essential in its control loop, which is sophisticated and can be detrimental to the reliability of TAB.…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, the switching frequency has to be reduced in case of high power levels. In [19][20][21] the driving frequencies are all 20 kHz, and this will be detrimental for the desired high power density.…”

Section: Introductionmentioning

confidence: 99%

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A High-Efficiency Isolated LCLC Multi-Resonant Three-Port Bidirectional DC-DC Converter

Wang

et al. 2017

Energies

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Abstract:In this paper, an isolated multi-resonant three-port bidirectional direct current-direct current (DC-DC) converter is proposed, which is composed of three full bridges, two inductor-capacitorinductor-capacitor (LCLC) multi-resonant tanks and a three-winding transformer. The phase shift control method is employed to manage the power transmission among three ports. Relying on the appropriate parameter selection, both of the fundamental and the third order power can be delivered through the multi-element LCLC resonant tanks, and consequently, it contributes to restrained circulating energy and the desirable promoted efficiency. Besides, by adjusting the driving frequency under different load conditions, zero-voltage-switching (ZVS) characteristics of all the switches of three ports are guaranteed. Therefore, lower switching loss and higher efficiency are achieved in full load range. In order to verify the feasibility of the proposed topology, a 1.5 kW prototype is established, of which the maximum efficiencies under forward and reverse operating conditions are 96.7% and 96.9% respectively. In addition, both of the bidirectional efficiencies maintain higher than 95.5% when the power level is above 0.5 kW.

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“…In [23,24], renewable source, battery and load are integrated to a three-port SR BDC. The driving frequency rises to 100 kHz, which is apparently higher than 20 kHz of TAB [19][20][21].…”

Section: Introductionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

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A High-Efficiency Isolated LCLC Multi-Resonant Three-Port Bidirectional DC-DC Converter

Wang

et al. 2017

Energies

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“…In order to solve these problems, three-port bidirectional DC-DC converters (TP-BDCs) were developed, which not only simplify the overall complexity of the system, but improve the power density as well. Therefore, their fruitful advantages make TP-BDCs competitive in a wide range of applications [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. According to the connection mode, TP-BDC topologies can be divided into three types: the nonisolated TP-BDC, the partly isolated TP-BDC and the isolated TP-BDC.…”

Section: Introductionmentioning

confidence: 99%

“…The device has become a research hotspot by virtue of its high efficiency, high reliability, and complete galvanic isolation. Then, with further studies in this field, a sub-classification has been proposed among the numerous published references [15][16][17][18][19][20][21][22][23][24], and two typical structures are proposed, namely the triple-active-bridge structure (TAB), and the resonant three-port bidirectional DC-DC converter, as shown in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis and Optimization of Power Loss Based on the Isolated Series/Multi Resonant Three-Port Bidirectional DC-DC Converter

Chen

Wang

et al. 2017

Energies

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Based on the loss distribution and efficiency analysis, a comparative study between a series resonant three-port bidirectional DC-DC converter (SR-TBC) and a multi-resonant three-port bi-directional DC-DC converter (MR-TBC) is reported here. By using the Fourier equivalent analysis method in hand, the resonant current, switching current expressions, zero voltage soft switching (ZVS) conditions of MR-TBC and SR-TBC are deduced. Besides, in consideration of efficiency and soft switching aspects, the loss models of main power components and resonant elements are integrated and optimized for both topologies. Their loss distributions are established, and the different effects derived from the adoption of SiC MOSFET and Si MOSFET on the converter efficiency are discussed. Finally, to verify the theoretical analyses, comparative experiments under diverse load states are conducted based on the prototypes of the MR-TBC and SR-TBC. The obtained results demonstrate that the MR-TBC successfully broadens the ZVS range and thus achieves higher efficiency along the entire load range.

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A new topology for bidirectional multi-input multi-output buck direct current-direct current converter

Babaei

Abbasi

2016

Int. Trans. Electr. Energ. Syst.

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In this paper, a new topology for bidirectional multi‐input multi‐output buck direct current–direct current converter is proposed. For the proposed converter, the number of inputs and outputs is arbitrary and independent from each other. Moreover, the number of components of the proposed structure is less than the conventional type of the bidirectional multi‐input multi‐output buck direct current–direct current converter. The proposed converter can be used in applications that require separate voltage levels with bidirectional current path. The possibility of using different energy sources with different voltage‐current characteristics, lower cost, continuous input current, and transformerless output are the major advantages of the converter. In this paper, the different operating modes of the proposed converter are explained. The performance and correctness operation of the proposed converter are validated by the simulation and experimental results.

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Asymmetrical Duty Cycle Control and Decoupled Power Flow Design of a Three-port Bidirectional DC-DC Converter for Fuel Cell Vehicle Application

Cited by 171 publications

References 24 publications

A High-Efficiency Isolated LCLC Multi-Resonant Three-Port Bidirectional DC-DC Converter

A High-Efficiency Isolated LCLC Multi-Resonant Three-Port Bidirectional DC-DC Converter

Comparative Analysis and Optimization of Power Loss Based on the Isolated Series/Multi Resonant Three-Port Bidirectional DC-DC Converter

A new topology for bidirectional multi-input multi-output buck direct current-direct current converter

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