A comparative study of Three–Phase Dual Active Bridge Converters for renewable energy applications

Núñez, Rubén Orlando; Oggier, Germán G.; Botterón, Fernando; García, Guillermo

doi:10.1016/j.seta.2017.07.004

Cited by 13 publications

(7 citation statements)

References 24 publications

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“…Based on the above parameters, to obtain the power value at the P DC2 port, a 100 Ω resistance is required to obtain an average current I DC2av = 10 A. Next, the inductance value is obtained from (21) to define the value of ∆φ, where the converter operates at full load. 5.…”

Section: Simulation Resultsmentioning

confidence: 99%

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Small-signal Model for Dual-active-bridge Converter Considering Total Elimination of Reactive Current

Rodriguez-Rodrıguez

Salgado-Herrera

Tórres-Jiménez

et al. 2021

Journal of Modern Power Systems and Clean Energy

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Emerging technologies such as electric vehicles, solid-state transformers, and DC transformers are implemented using the closed-loop bi-directional dual-active-bridge (DAB) converter. In this context, it is necessary to have average models that provide an efficient way of tuning the proportional integral (PI) compensator parameters for large-and small-signal applications. We present a novel small-signal model (SSM) for DAB converter with a single closed-loop PI controller and the total elimination of reactive current (I Q = 0). The method applies a modulation technique for I Q = 0 and introduces a composite function in the controller while reducing the original nonlinear switching model, which allows to decrease the order of the transfer function and analyze the closed-loop operation. The proposed SSM is analyzed using different response time, load, and DC voltage changes. The simulation and experimental results demonstrate the ease of implementation and effectiveness of the proposed model with respect to other SSM techniques.

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Section: Simulation Resultsmentioning

confidence: 99%

“…A three-phase DAB configuration is discussed in [21]. Due to the topological structure of the converter, the variations in magnitude and phase generate different operation zones.…”

Section: Introductionmentioning

confidence: 99%

Small-signal Model for Dual-active-bridge Converter Considering Total Elimination of Reactive Current

Rodriguez-Rodrıguez

Salgado-Herrera

Tórres-Jiménez

et al. 2021

Journal of Modern Power Systems and Clean Energy

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show abstract

“…By replacing the phase-shift inductor ′ with two equal inductors ( 2 ′ and 3 ′ ) connected in series with the secondary windings, the CTTbased ac equivalent circuit with three phase-shift inductors are derived and shown in Figure 1(b). The values of the three inductors that are used in this model are expressed as [21,22], Mode 1 operation is considered as an example to explore the operation of modified DAB converter with the Extended phase shift (EPS) control, and due to the symmetry, only three stages over the half switching are described.…”

Section: Proposed Circuit Topologymentioning

confidence: 99%

An improved closed loop hybrid phase shift controller for dual active bridge converter

Narasimha¹,

Salkuti

2020

IJECE

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In this paper, a new closed loop hybrid phase shift control is proposed for dual active bridge (DAB) converter with variable input voltage. The extended phase shift (EPS) control is applied when load gets heavy enough and the secondary side phase shift angle decreases to zero. When this modified DAB converter operates at light loads, the triple phase shift (TPS) modulation method is applied, and the added control freedom is the secondary phase shift angle between the two-secondary side switching legs. The hybrid phase shift control (HPS) scheme is a combination of EPS and TPS modulations, and it provides a very simple closed form implementation for the primary and secondary side phase shift angles. Depending on the application by changing the phase shift angles we can achieve Buck or Boost operation. A characteristic table feedback control method has been used for closed loop operation. By using 1D look up table the proposed DAB converter provides constant 400V for any given input voltage.

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“…The 3P-BIDC converter has higher power capability and lower ripple current on both input and output side, which leads to lower capacitor volume and higher power density [19]. The average power for the 3P-BIDC when 0°≤ ≤ 30° is defined and analysed in [11], [20] and [21]:…”

Section: Three-phase Bidirectional Isolated Dc-dcmentioning

confidence: 99%

Low-load Efficiency Improvement of a Three-Phase Bidirectional Isolated DC-DC Converter (3P-BIDC) Via Enhanced Switching Strategy

Sharifuddin¹,

Tana²,

Akagi³

2018

IJET

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This paper presents the system design, operation and enhanced switching strategy of a three-phase bidirectional isolated dc-dc converter (3P-BIDC). The paper discusses the operating modes of the 3P-BIDC using phase-shift modulation (PSM), with analysis on its soft-switching characteristics. The phase-shift modulation is the simplest modulation technique that can be applied to the 3P-BIDC. However, it comes with the consequences of low efficiency performance in the low-load conditions. Therefore, this paper investigates the improvement in efficiency of the 3P-BIDC during low-load condition using an enhanced switching strategy combining burst-mode switching and phase-shift modulation. The model of a 700-V, 100-kW, 20-kHz 3P-BIDC and the enhanced switching strategy are verified via simulation using PSCAD. The simulation results shows that the combination of burst-mode and phase-shift modulation technique improves the efficiency of the 3P-BIDC at low-load conditions.

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A comparative study of Three–Phase Dual Active Bridge Converters for renewable energy applications

Cited by 13 publications

References 24 publications

Small-signal Model for Dual-active-bridge Converter Considering Total Elimination of Reactive Current

Small-signal Model for Dual-active-bridge Converter Considering Total Elimination of Reactive Current

An improved closed loop hybrid phase shift controller for dual active bridge converter

Low-load Efficiency Improvement of a Three-Phase Bidirectional Isolated DC-DC Converter (3P-BIDC) Via Enhanced Switching Strategy

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