Variable-Frequency Phase Shift Modulation of a Dual Active Bridge Converter

Hiltunen, Jani; Väisänen, Vesa; Juntunen, Raimo; Silventoinen, Pertti

doi:10.1109/tpel.2015.2390913

Cited by 145 publications

(56 citation statements)

References 19 publications

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“…The coupled inductor configuration provides high voltage gain and the reduced current ripple. The high conversion gain (boost mode) can be achieved by voltage doubler cell mechanism [14] based on the capacitor Cb. The proposed chopper circuit is shown in Figure 2.…”

Section: Chopper Configurationmentioning

confidence: 99%

Neoteric Fuzzy Control Stratagem and Design of Chopper fed Multilevel Inverter for Enhanced Voltage Output Involving Plug-In Electric Vehicle (PEV) Applications

2019

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The utilization of plug-in electric vehicles (PEV) has started to garner more attention worldwide considering the environmental and economic benefits. This has led to the invention of new technologies and motifs associated with batteries, bidirectional converters and inverters for Electric Vehicle applications. In this paper, a novel design and control of chopper circuit is proposed and configured with the series and parallel connection of the power electronic based switches for two-way operation of the converter. The bidirectional action of the proposed converter makes it suitable for plug-in electric vehicle applications as the grid is becoming smarter. The DC–DC converter is further interfaced with the designed multilevel inverter (MLI). The reduced switches associated with the novel design of MLI have overcome the cons associated with the conventional inverters in terms of enhanced performance in the proposed design. Further, novel control strategies have been proposed for the DC–DC converter based on Proportional Integral (PI) and Fuzzy based control logic. For the first time, the performance of the entire system is evaluated based on the comparison of proposed PI, fuzzy, and hybrid controllers. New rules have been formulated for the Fuzzy based controllers that are associated with the Converter design. This has further facilitated the interface of bidirectional DC–DC converter with the proposed MLI for an enhanced output voltage. The results indicate that the proposed hybrid controller provides better performance in terms of voltage gain, ripple, efficiency and overall aspects of power quality that forms the crux for PEV applications. The novelty of the design and control of the overall topology has been manifested based on simulation using MATLAB/SIMULINK.

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Section: Chopper Configurationmentioning

confidence: 99%

Neoteric Fuzzy Control Stratagem and Design of Chopper fed Multilevel Inverter for Enhanced Voltage Output Involving Plug-In Electric Vehicle (PEV) Applications

2019

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“…difficult to operate [41], [42]. The average power equation of basic topology of dual active bridge converter is Fig.…”

Section: Fig 4 Basic Waveforms Of Cvfdab Convertermentioning

confidence: 99%

Operation of Current-fed Dual Active Bridge DC-DC Converters for Microgrid

Geetha¹,

Subramaniam²,

Gnanadass³

2019

IJRTE

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Dual Active Bridge (DAB) is an isolated bidirectional DC-DC converter, which comprises two full bridge converters linked through a high frequency transformer. It has low stresses and permits high frequency performance because of the soft-switching. All the switches in the converter achieves the turn ON & OFF during Zero Voltage Switching (ZVS) and Zero Current Switching (ZCS) to minimize switching loss. Generally, DAB is classified as two types, namely, voltage-fed and current-fed variants. At light load conditions, soft-switching is not realized in case of voltage-fed DAB topologies. The application of current-fed DAB converters is to reduce the losses at the time of switching under light load conditions and improves the efficiency. This paper describes the various topologies of voltage-fed and current-fed DAB used for different applications in microgrid and fuel cell energy generation system by using the simulation. The performance of voltage-fed and current-fed DAB with snubber-less converters are also demonstrated and their effectiveness are validated.

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“…Thus, for a particular transformer, the capability of which is given by (22) and the amplitude of V 1 and V 2 are determined by the application, a change in the switching frequency produces an inversely proportional change in the core induction, B (see (23)). On the other hand, the core losses will increase as switching frequency increases and the core induction will decrease in a squared ratio.…”

Section: A Range Of Variation Of the Switching Frequencymentioning

confidence: 99%

“…The power transfer can be improved by controlling the series reactance and the reactive power [7], [14] between the two active bridges, which is proportional to the transformer leakage inductance. Recent proposals use a modulation strategy where the series reactance is adjusted by changing the switching frequency, as function of the converter operation point, to ensure zero-voltage switching (ZVS) [22], [23]. The strategy of changing the switching frequency has been extensively used for resonant converters in the manner proposed in [24], where a three-level isolated LLC resonant converter using a novel modulation strategy for wide-voltage range operation is employed.…”

Section: Introductionmentioning

confidence: 99%

High-Efficiency DAB Converter Using Switching Sequences and Burst Mode

Oggier

Ordonez

2016

IEEE Trans. Power Electron.

110

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Dual Active Bridge (DAB) converters enable bidirectional power flow in buck and boost operating modes. This paper presents an advanced switching sequence and burst mode strategy to balance conduction, switching, and magnetic losses under light, medium, and heavy loading conditions, leading to improved operating efficiency. The implementation of the switching sequence employs the natural state-plane trajectories of the converter and contributes to higher efficiency and the ability to perform burst-mode. The proposed switching sequences improve the overall efficiency of the converter by enabling soft switching and adjusting the frequency to match the minimum RMS transformer current in the full operating range. Furthermore, it incorporates a fully controlled burstmode switching sequence for light loading conditions to further extend the efficiency gains. As a result, maximum efficiency is obtained by taking advantage of all the possible switching structures of the converter. The analysis provides insight into the natural trajectories of the converter, which produce softswitching transitions and enable the converter structures to achieve the target operating point directly. Simulation and experimental results are presented to validate the benefits of the switching sequence and illustrate the burst-mode operation.

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Variable-Frequency Phase Shift Modulation of a Dual Active Bridge Converter

Cited by 145 publications

References 19 publications

Neoteric Fuzzy Control Stratagem and Design of Chopper fed Multilevel Inverter for Enhanced Voltage Output Involving Plug-In Electric Vehicle (PEV) Applications

Neoteric Fuzzy Control Stratagem and Design of Chopper fed Multilevel Inverter for Enhanced Voltage Output Involving Plug-In Electric Vehicle (PEV) Applications

Operation of Current-fed Dual Active Bridge DC-DC Converters for Microgrid

High-Efficiency DAB Converter Using Switching Sequences and Burst Mode

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