Generic Closed-Loop Controller for Power Regulation in Dual Active Bridge DC–DC Converter With Current Stress Minimization

Hebala, Osama M.; Aboushady, Ahmed A.; Ahmed, Khaled; Abdelsalam, Ibrahim

doi:10.1109/tie.2018.2860535

Cited by 94 publications

(65 citation statements)

References 28 publications

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“…The power flow between any two ports is essentially controlled through phase shift modulation of the square-wave voltages generated by their corresponding active bridge modules. The modulation scheme adopted is the triple phase shift (TPS) [15] depicted in Fig. 2.…”

Section: A Phase Shift Modulationmentioning

confidence: 99%

“…There are different technical aspects considering the minimisation of DAB losses: particularly, the minimisation of non-active power losses [7]- [9] and current stresses [10]- [15]. In [7] high DAB performance was investigated by obtaining an operating range of optimum triple phase shift (TPS) ratios via analyzing the inductor current for light and heavy loads in boost operation.…”

Section: Introductionmentioning

confidence: 99%

“…The reported literature in the area of efficiency-improving control schemes of DAB show various shortcomings that can be summarised as follows: a) Dependency of the control design on complex TPS-based time-domain modelling such as [6]- [15]. In this case, detailed operation modes and related boundaries under different conditions in terms of load and DC voltage ratio must be determined which complicates control schemes design.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A New Active Power Controller in Dual Active Bridge DC–DC Converter With a Minimum-Current-Point-Tracking Technique

Hebala

Aboushady

Ahmed

et al. 2021

IEEE J. Emerg. Sel. Topics Power Electron.

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This paper proposes a new controller for power regulation in dual active bridge (DAB) DC−DC converter based on a new scheme that tracks minimum RMS current to ensure minimum losses. The proposed controller is based on an implementation of perturb and observe (P&O) tracking method that enables minimum current point tracking (MCPT) at any desired level of active power transfer and DC voltage ratio. The P&O is embedded in a closed loop control scheme which simultaneously regulates active power in DAB converter. The nonlinear I-V characteristic of DAB presents the basis for this proposed controller and the rationale of using P&O algorithm. The proposed controller does not require complex non-linear converter modelling and is not circuit parameter dependent. Design procedure of the proposed controller is presented, and extensive simulation is carried out using MATLAB/Simulink to validate effectiveness of the proposed MCPT closed loop controller. An experimental prototype also substantiates the results achieved.

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Section: A Phase Shift Modulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A New Active Power Controller in Dual Active Bridge DC–DC Converter With a Minimum-Current-Point-Tracking Technique

Hebala

Aboushady

Ahmed

et al. 2021

IEEE J. Emerg. Sel. Topics Power Electron.

Self Cite

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“…It can be seen from Equations (18) and (19) that the transfer function of duty cycle D to inductor current I L1 is:…”

Section: Modeling Of Dc/dc Converters For Fuel Cell Vehiclesmentioning

confidence: 99%

“…Because no auxiliary unit is needed to suppress the voltage spike caused by the coupling inductor, it has the advantages of simple structure and small size. In summary, for the application requirements of DC/DC converters in fuel cell vehicles, in addition to optimizing the design of the converter topology, it is necessary to establish an accurate mathematical model for the converter and develop an optimized control algorithm to improve the dynamic and steady-state characteristics of the converter [19,20].…”

Section: Introductionmentioning

confidence: 99%

Feedforward-Double Feedback Control System of Dual-Switch Boost DC/DC Converters for Fuel Cell Vehicles

et al. 2019

Energies

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DC/DC converters for fuel cell electric vehicles need not only high boost ratio and high efficiency, but also strong anti-jamming capability. Therefore, it is especially important to devise a control method with strong robustness under the premise of an appropriate topology. In this paper, a simple dual-switch boost converter topology is adopted. We use the state space averaging method to build a small signal model, and based on this model, we propose a feedforward-double feedback control system for continuous conduction mode (CCM) mode. Simulation and experimental results show that the proposed feedforward-double feedback control system improves the robustness of the system while ensuring a high boost ratio and efficiency, and solves the problem of weak output characteristics of fuel cells. The control effect is similar to the sliding mode control, which is known for its robustness, while the rise time of step response is only 1/10 of that of the voltage feedback control system. When the output voltage of the DC/DC converter is 55 V, the DC/DC converter using feedforward-double feedback control system is more robust than the voltage feedback control system under sudden change of load.

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Systematic analysis of control techniques for the dual active bridge converter in photovoltaic applications

Herrera‐Jaramillo

Montoya

Henao‐Bravo

et al. 2021

Circuit Theory & Apps

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Summary The dual active bridge (DAB) converter has high efficiency and versatility; hence, such a converter has been used to design photovoltaic (PV) applications with both step‐up and step‐down voltage capabilities. However, PV systems require maximum power point tracking (MPPT) controllers to track the optimal operation conditions; moreover, PV voltage controllers are required to reject load perturbations that reduce the MPPT performance. This paper describes the operation of a DAB converter in PV systems and compares the performance of the DAB converter with a classical boost solution. In addition, this paper also presents a systematic analysis of the control techniques for DAB converters in PV applications, which provides useful information for selecting the most suitable approach for a particular application.

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Generic Closed-Loop Controller for Power Regulation in Dual Active Bridge DC–DC Converter With Current Stress Minimization

Cited by 94 publications

References 28 publications

A New Active Power Controller in Dual Active Bridge DC–DC Converter With a Minimum-Current-Point-Tracking Technique

A New Active Power Controller in Dual Active Bridge DC–DC Converter With a Minimum-Current-Point-Tracking Technique

Feedforward-Double Feedback Control System of Dual-Switch Boost DC/DC Converters for Fuel Cell Vehicles

Systematic analysis of control techniques for the dual active bridge converter in photovoltaic applications

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