Modeling and Analysis of a Dual-Active-Bridge-Isolated Bidirectional DC/DC Converter to Minimize RMS Current With Whole Operating Range

Tong, Anping; Hang, Lijun; Li, Guojie; Jiang, Xiuchen; Gao, Shenyu

doi:10.1109/tpel.2017.2692276

Cited by 328 publications

(165 citation statements)

References 30 publications

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“…Assuming that the voltage conversion ratio k = U 1 /nU 2 and k > 1, the other condition k < 1 can be analyzed similarly. Six operating modes are summarized in traditional TPS scheme as follows [12]:…”

Section: Basic Principle Of Operating Mode Compartmentalizationmentioning

confidence: 99%

“…Compared with other phase-shift schemes, TPS scheme facilitates the most degrees of control freedom, which controls the duty ratios of H 1 and H 2 by two extra inner phase-shift ratios individually. Therefore, TPS control has become the most popular phase-shift control scheme of DAB converter in current research [11,12]. Numerous modulation strategies have been proposed to improve the performance of DAB converter.…”

Section: Introductionmentioning

confidence: 99%

“…Numerous modulation strategies have been proposed to improve the performance of DAB converter. These strategies mainly focus on minimizing current stress or root-mean-square (RMS) current [12,13], reducing backflow power [14,15], and broadening soft-switching range [16,17]. An optimal modulation scheme for minimizing the current stress of DAB converter under TPS control is proposed in [13].…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Optimization of Dual Active Bridge DC-DC Converter with Dead-Time Effect under Triple-Phase-Shift Control

et al. 2019

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Dead-time effect has become an apparent issue in high-switching-frequency high-power dual active bridge (DAB) DC-DC converter. This paper gives a detailed analysis of phase-shift errors effect caused by dead time, including output voltage offset, soft-switching failure, optimal scheme failure, etc. Phase-shift errors effect will invalidate traditional analyses of optimal control and mislead the design of DAB converter. To overcome these drawbacks, various operating modes and an accurate transmission power model incorporating dead time under triple-phase-shift (TPS) control are developed. On this basis, an optimal TPS incorporating dead time (TPSiDT) scheme is further proposed to minimize the current stress, while guaranteeing soft-switching operation by using Lagrange multiplier method (LMM) and Genetic Algorithm (GA). The novel transmission power model can provide accurate power flow computation to avoid phase-shift errors. Therefore, in practical applications, the minimum current stress and soft-switching operation can be guaranteed, and the efficiency of DAB converter can be improved. Finally, the experimental results verify the feasibility of the proposed TPSiDT scheme.

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Section: Basic Principle Of Operating Mode Compartmentalizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling and Optimization of Dual Active Bridge DC-DC Converter with Dead-Time Effect under Triple-Phase-Shift Control

et al. 2019

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“…Similar to the optimized methods for current stress, a numerical method is used to find the optimal control parameters for minimum rms of transformer current in [10]. In [11,12], the analytical expressions of the optimal control parameters are derived for minimum rms of transformer current. As a result, the optimal control method can be implemented by on-line and on-chip calculation.…”

Section: Introductionmentioning

confidence: 99%

“…However, the non-active current caused by zero power transmission is not considered in [23,24]. Similar to the optimized methods in [7][8][9][10][11][12], these optimized control methods in [21][22][23][24] are essentially still for current. In fact, the backflow power is just a portion of the non-active power transmission in DAB and the limitations of the backflow power control method are not presented.…”

Section: Introductionmentioning

confidence: 99%

Backflow Power Optimization Control for Dual Active Bridge DC-DC Converters

Xiong

Hao

et al. 2017

Energies

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This paper proposes optimized control methods for global minimum backflow power based on a triple-phase-shift (TPS) control strategy. Three global optimized methods are derived to minimize the backflow power on the primary side, on the secondary side and on both sides, respectively. Backflow power transmission is just a portion of non-active power transmission in a dual active bridge (DAB) converter. Non-active power transmission time is proposed in this paper, which unifies zero power transmission and backflow power transmission. Based on the proposed index, an optimized control method is derived to achieve both the maximum effective power transmission time and minimum current stress of DAB at the same time. A comparative analysis is performed to show the limitations of the minimum backflow power optimization method. Finally, a prototype is built to verify the effectiveness of our theoretical analysis and the proposed control methods by experimental results.

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Bidirectional and Dual Active Bridge Converters

2023

DC–DC Converter Topologies

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Modeling and Analysis of a Dual-Active-Bridge-Isolated Bidirectional DC/DC Converter to Minimize RMS Current With Whole Operating Range

Cited by 328 publications

References 30 publications

Modeling and Optimization of Dual Active Bridge DC-DC Converter with Dead-Time Effect under Triple-Phase-Shift Control

Modeling and Optimization of Dual Active Bridge DC-DC Converter with Dead-Time Effect under Triple-Phase-Shift Control

Backflow Power Optimization Control for Dual Active Bridge DC-DC Converters

Bidirectional and Dual Active Bridge Converters

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