Stability Analysis of Isolated Bidirectional Dual Active Full-Bridge DC–DC Converter With Triple Phase-Shift Control

Wu, Kuiyuan; Silva, C. W. de; Dunford, W.G.

doi:10.1109/tpel.2011.2167243

Cited by 210 publications

(60 citation statements)

References 15 publications

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“…However, there are two apparent drawbacks associated with SPS control: limited ZVS operation range with non-unity converter gain and high circulating current at partial load. Different modulation techniques are then proposed to either extend the ZVS range or alleviate the circulating current, which include extended phase-shift (EPS) [6,[12][13][14][15][16], dual-phase-shift (DPS) [17][18][19][20][21] and triple-phase-shift (TPS) [22][23][24]. Generally, those advanced control strategies introduce one or two controllable inner phase-shifts, so that the power becomes a function of up to three variables.…”

Section: Introductionmentioning

confidence: 99%

Fast Transient Modulation for a Step Load Change in a Dual-Active-Bridge Converter with Extended-Phase-Shift Control

Sun

2018

Energies

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Abstract:The manipulation of the bidirectional power in a dual-active-bridge converter relies on the adjustment of several phase-shift angles. Improper implementation of those adjustments during the transient process of a step load change may induce transient DC bias current in the transformer and accompanied high peak current, which may result in excess loss and safety issues potentially. The paper proposes a load transient modulation to execute the adjustments of the two phase-shift angles for extended-phase-shift (EPS) control in a predictive manner. An unknown phase-shift is introduced to the gating signals of one bridge arm, and the gating signals of other bridge arms would be modified accordingly to realize the required adjustment of the two phase-shift angles together. With the proper selection of the introduced phase-shift, the power adjustment can be done in less than one high-frequency cycle without resulting in DC bias and overshoot current. Although there are four different operation modes existing in EPS, a universal solution of the unknown phase-shift can be obtained for all possible power transition cases between different modes. Validation of the proposed method is performed by means of both simulation and experimental tests.

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Section: Introductionmentioning

confidence: 99%

Fast Transient Modulation for a Step Load Change in a Dual-Active-Bridge Converter with Extended-Phase-Shift Control

Sun

2018

Energies

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“…Non-isolated converters usually have simple topologies and fewer components, but they face challenges in high-gain voltage conversion and galvanic isolation. On the other hand, isolated converters can achieve wide-range voltage conversion and electric isolation by using high-frequency transformers [5,[11][12][13][14]. Different from two-port bidirectional DC/DC converters, multi-port DC/DC converters are derived to exchange power among multiple DC ports.…”

Section: Introductionmentioning

confidence: 99%

The Chaotic-Based Control of Three-Port Isolated Bidirectional DC/DC Converters for Electric and Hybrid Vehicles

et al. 2016

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Three-port isolated (TPI) bidirectional DC/DC converters have three energy ports and offer advantages of large voltage gain, galvanic isolation ability and high power density. For this reason this kind of converters are suitable to connect different energy sources and loads in electric and hybrid vehicles. The purpose of this paper is to propose chaotic modulation and the related control scheme for TPI bidirectional DC/DC converters, in such a way that the switching harmonic peaks can be suppressed in spectrum and the conducted electromagnetic interference (EMI) is reduced. Two chaotic modulation strategies, namely the continuously chaotic modulation and the discretely chaotic modulation are presented. These two chaotic modulation strategies are applied for TPI bidirectional DC/DC converters with shifted-phase angle based control and phase-shifted PWM control. Both simulation and experiments are given to verify the validity of the proposed chaotic modulation-based control schemes.

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“…Several bidirectional DC-DC converters based on isolated and non-isolated topologies have been presented in literature for this purpose [12][13][14][15][16][17]. Most of isolated topologies need a transformer and a high number of switching devices which increases the cost and the switching losses, in addition to more complicated control schemes [18][19][20][21]. Non-isolated topologies are mainly based on the conventional Buck-Boost and Cuk configurations which are fairly simple and easy to control [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Bidirectional boost/buck quadratic converter for distributed generation systems with electrochemical storage systems

Pires

Foito

Cordeiro

2016

2016 IEEE International Conference on Renewable Energy Research and Applications (ICRERA)

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Abstract-The increasing number of distributed generation systems using renewable and non-conventional energy sources show the trend of future generation systems. Most of these systems require power electronic converters as an interface between the DC voltage buses and electrochemical storage systems. Such storage systems, like batteries or supercapacitors, usually need bidirectional DC-DC converters to allow their charge or discharge according with necessary operation conditions. In this paper, a non-isolated bidirectional Buck-Boost converter with high voltage gain for electrochemical storage devices used in distributed generation systems is presented. To achieve high voltage gain ratios, the proposed topology presents quadratic characteristics in both step-down (Buck) and step-up (Boost) operation modes. In addition to the wide conversion range, it presents continuous input and output current, reduced charging/discharging ripple and simple control circuitry. All these features allow the energy exchange smoothly and continuously resulting in a longer durability of storage devices. The principle of the operation of the proposed converter in both operation modes, as well as their theoretical analysis will be discussed. The performance of this bidirectional power converter is confirmed through simulation and experimental results.

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Stability Analysis of Isolated Bidirectional Dual Active Full-Bridge DC–DC Converter With Triple Phase-Shift Control

Cited by 210 publications

References 15 publications

Fast Transient Modulation for a Step Load Change in a Dual-Active-Bridge Converter with Extended-Phase-Shift Control

Fast Transient Modulation for a Step Load Change in a Dual-Active-Bridge Converter with Extended-Phase-Shift Control

The Chaotic-Based Control of Three-Port Isolated Bidirectional DC/DC Converters for Electric and Hybrid Vehicles

Bidirectional boost/buck quadratic converter for distributed generation systems with electrochemical storage systems

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