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Artykuły w czasopismach na temat „Triple Active Bridge”

Autor: Grafiati

Data publikacji: 6 września 2023

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1

Chaturvedi, Pallavi, Mohmmed Rizwan Ansari i Dheeraj Kumar Palwalia. "Optimal Unified Triple-Phase-Shift Control Technique for Dual Active Bridge Converter". Indian Journal Of Science And Technology 16, nr 22 (7.06.2023): 1635–44. http://dx.doi.org/10.17485/ijst/v16i22.329.

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Tarraf, Rebecca, David Frey, Sylvain Leirens, Sebastien Carcouet, Xavier Maynard i Yves Lembeye. "Modeling and Control of a Hybrid-Fed Triple-Active Bridge Converter". Energies 16, nr 16 (16.08.2023): 6007. http://dx.doi.org/10.3390/en16166007.

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In general, the structures of Multi-Active Bridge (MAB) converters that can be found in the literature are usually based on voltage converters. However, in some cases, it could be interesting to have a current-fed input due to load characteristics or operation constraints. This leads to a hybrid MAB structure mixing both current-fed and voltage-fed bridges. In this paper, a new hybrid-fed, fully coupled Triple-Active Bridge (TAB) converter topology with two voltage-fed ports and one current-fed port is studied, modelled and controlled. In the first place, a generalized average model (GAM) is developed for this system. After that, a reduced-order model is elaborated in order to simplify the behavioral study and control of this coupled system. A control strategy was also proposed in this paper, based on the developed mathematical model. Simulation results using Matlab/Simulink are presented to validate this study.

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3

Zou, Shenli, Jiangheng Lu i Alireza Khaligh. "Modelling and control of a triple‐active‐bridge converter". IET Power Electronics 13, nr 5 (kwiecień 2020): 961–69. http://dx.doi.org/10.1049/iet-pel.2019.0920.

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4

Santoro, Danilo, Iñigo Kortabarria, Andrea Toscani, Carlo Concari, Paolo Cova i Nicola Delmonte. "PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications". Energies 14, nr 10 (15.05.2021): 2854. http://dx.doi.org/10.3390/en14102854.

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DC nanogrid architectures with Photovoltaic (PV) modules are expected to grow significantly in the next decades. Therefore, the integration of multi-port power converters and high-frequency isolation links are of increasing interest. The Triple Active Bridge (TAB) topology shows interesting advantages in terms of isolation, Zero Voltage Switching (ZVS) over wide load and input voltage ranges and high frequency operation capability. Thus, controlling PV modules is not an easy task due to the complexity and control stability of the system. In fact, the TAB power transfer function has many degrees of freedom, and the relationship between any of two ports is always dependent on the third one. In this paper we analyze the interfacing of photovoltaic arrays to the TAB with different solar conditions. A simple but effective control solution is proposed, which can be implemented through general purpose microcontrollers. The TAB is applied to an islanded DC nanogrid, which can be useful and readily implemented in locations where the utility grid is not available or reliable, and applications where isolation is required as for example More Electric Aircraft (MEA). Different conditions have been simulated and the control loops are proved for a reliable bus voltage control on the load side and a good maximum power point tracking (MPPT).

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5

Ohno, Takanobu, Kengo Kakomura i Nobukazu Hoshi. "Analysis of Interference between Each Port in Triple Active Bridge Converter". IEEJ Transactions on Industry Applications 139, nr 3 (1.03.2019): 232–38. http://dx.doi.org/10.1541/ieejias.139.232.

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6

Kudithi, Nageswara Rao, i Sakda Somkun. "Power flow management of triple active bridge for fuel cell applications". International Journal of Power Electronics and Drive Systems (IJPEDS) 10, nr 2 (1.06.2019): 672. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp672-681.

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<p>The power conditioning circuits which are used in fuel cell systems should carefully be designed to prolong the life span of the system, for the reason of the dynamic nature, such that the unexpected and extreme changes in load decreases the life of the fuel cells. This paper presents the triple active bridge (TAB) and it’s average small signal modelling, which is used for design of the system controllers for stable operation. The extended symmetrical optimum method is used for realized the proportional integral (PI) controller, to control the output/Load voltage and power flow in the fuel cell/Source with a guaranteed minimum phase margin for the system with a variable process gain in addition to other accepted desired performances. This method ensures the maximum phase margin at a minimum required value at the desired gain crossover frequency with a compromise between system’s peak overshoot, rise time and settling time. This model and this approach helps in designing TAB suitable for healthy and uninterrupted fuel cell power generation systems as a part of a renewable /clean energy system. MATLAB/Simulink is used to simulate the proposed controllers with TAB.</p>

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7

Ohno, Takanobu, Kengo Kakomura i Nobukazu Hoshi. "Analysis of interference between each port in triple active bridge converter". Electrical Engineering in Japan 207, nr 4 (29.05.2019): 55–62. http://dx.doi.org/10.1002/eej.23211.

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8

Naseem, Nabeel, i Honnyong Cha. "Triple-Active-Bridge Converter With Automatic Voltage Balancing for Bipolar DC Distribution". IEEE Transactions on Power Electronics 37, nr 7 (lipiec 2022): 8640–48. http://dx.doi.org/10.1109/tpel.2022.3150152.

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9

Dey, Saikat, i Ayan Mallik. "Multivariable-Modulation-Based Conduction Loss Minimization in a Triple-Active-Bridge Converter". IEEE Transactions on Power Electronics 37, nr 6 (czerwiec 2022): 6599–612. http://dx.doi.org/10.1109/tpel.2022.3141334.

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10

Pham, Van-Long, i Keiji Wada. "Applications of Triple Active Bridge Converter for Future Grid and Integrated Energy Systems". Energies 13, nr 7 (1.04.2020): 1577. http://dx.doi.org/10.3390/en13071577.

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Renewable energy systems and electric vehicles (EVs) are receiving much attention in industrial and scholarly communities owing to their roles in reducing pollutant emissions. Integrated energy systems (IES), which connect different types of renewable energies and storages, have become common in many applications, such as the grid-connected photovoltaic (PV) and battery systems, fuel cells and battery/supercapacitor in EVs. The advantages of all energy sources are maximized by utilizing connection and control strategies. Because many storage systems and household loads are mainly direct current (DC) types, the DC grid has considerable potential for increasing the efficiency of distribution grids in the future. In IES and future DC grid systems, the triple active bridge (TAB) converter is an isolated bidirectional DC-DC converter that has many advantages as a core circuit. Therefore, this paper reviews the characteristics of the TAB converter in current applications and suggests next-generation applications. First, the characteristics and operation modes of the TAB converter are introduced. An overview of all current applications of the TAB converter is then presented. The advantages and challenges of the TAB converter in each application are discussed. Thereafter, the potential future applications of the TAB converter with an adaptable power transmission design are presented.

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11

Ohno, Takanobu, i Nobukazu Hoshi. "Experimental Analysis and Interference Consideration in Each Port of Triple Active Bridge Converter". IEEJ Transactions on Industry Applications 139, nr 7 (1.07.2019): 631–36. http://dx.doi.org/10.1541/ieejias.139.631.

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12

Kondekar, Anshamu G., Asst Prof Nilima B. Dhande i Asst Prof Dimpal U. Zade. "Application of Triple Active Bridge Converter for Future Grid and Integrated Energy System". International Journal for Research in Applied Science and Engineering Technology 11, nr 3 (31.03.2023): 1588–93. http://dx.doi.org/10.22214/ijraset.2023.49729.

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Abstract: Renewable energy systems and electric vehicles (EVs) are receiving much attention in industrial and scholarly communities owing to their roles in reducing pollutant emissions. Integrated energy systems (IES), which connect different types of renewable energies and storages, have become common in many applications, such as the grid-connected photovoltaic (PV) and battery systems, fuel cells and battery/super capacitor in EVs. The advantages of all energy sources are maximized by utilizing connection and control strategies. Because many storage systems and household loads are mainly direct current (DC) types, the DC grid has considerable potential for increasing the efficiency of distribution grids in the future. In IES and future DC grid systems, the triple active bridge (TAB) converter is an isolated bidirectional DC-DC converter that has many advantages as a core circuit. In this paper reviews the characteristics of the TAB converter in current applications and suggests nextgeneration applications. First, the characteristics and operation modes of the TAB converter are introduced. An overview of all current applications of the TAB converter is then presented. The advantages and challenges of the TAB converter in each application are discussed. Thereafter, the potential future applications of the TAB converter with an adaptable power transmission design are presented.

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13

Wu, Junjuan, Wei Zhang, Xiaofeng Sun i Xinyu Su. "Research on Reactive Power Optimization Control of a Series-Resonant Dual-Active-Bridge Converter". Energies 15, nr 11 (24.05.2022): 3856. http://dx.doi.org/10.3390/en15113856.

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In order to meet the demands of the bidirectional transmission of electric vehicle charger power, a series-resonant dual-active-bridge (DAB) converter is investigated in this paper. Firstly, the active and reactive power and zero voltage switching (ZVS) conditions of the full-bridge arm under extended phase-shift modulation, dual phase-shift modulation and triple phase-shift modulation are analyzed. Secondly, with the minimum reactive power as the optimization objective, the extended phase shift (EPS) is finally selected as the modulation method after comparing the minimum reactive power under various modulation methods when the normalized value of active power is varied in the range of 0–1. By constructing the objective function and determining the constraints, an off-line reactive power–minimization control strategy is proposed to achieve the ZVS of the full-bridge arm and, finally, the feasibility of the proposed control strategy is verified by simulation and experiment.

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14

S, Adarsh, i Nagendrappa H. "Duty ratio control ofthree port isolated bidirectional asymmetrical triple active bridge DC-DC converter". International Journal of Power Electronics and Drive Systems (IJPEDS) 12, nr 2 (1.06.2021): 943. http://dx.doi.org/10.11591/ijpeds.v12.i2.pp943-956.

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Multiport converters are used in interfacing of distributed energy sources with grid/load. Isolated converters are needed in applications where converter gain is high and there is a requirement of isolation. Dual transformer asymmetric triple active bridge offers the advantage of reduced circulating current. However, the operating range is low for variation in load and source voltage. In this paper duty ratio modulation technique is proposed to regulate the load voltage and control the power flow in both the directions. As a result of the new gating scheme, the converter switches operate with ZVS, irrespective of variations in load power and source voltage. The converter is designed to ensure high switch utilization. The control technique is validatedthrough simulation of a 1kW three port DC-DC converter. It was observerd that the load voltage was regulated for wide range of variation in load power and source port voltages. The single input dual output mode was also verified.

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15

Pham, Van-Long, i Keiji Wada. "Normalization Design of Inductances in Triple Active Bridge Converter for Household Renewable Energy System". IEEJ Journal of Industry Applications 9, nr 3 (1.05.2020): 227–34. http://dx.doi.org/10.1541/ieejjia.9.227.

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16

Muthuraj, Shiva S., V. K. Kanakesh, Pritam Das i Sanjib Kumar Panda. "Triple Phase Shift Control of an LLL Tank Based Bidirectional Dual Active Bridge Converter". IEEE Transactions on Power Electronics 32, nr 10 (październik 2017): 8035–53. http://dx.doi.org/10.1109/tpel.2016.2637506.

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17

Jakka, Venkat Nag Someswar Rao, Anshuman Shukla i Georgios D. Demetriades. "Dual-Transformer-Based Asymmetrical Triple-Port Active Bridge (DT-ATAB) Isolated DC–DC Converter". IEEE Transactions on Industrial Electronics 64, nr 6 (czerwiec 2017): 4549–60. http://dx.doi.org/10.1109/tie.2017.2674586.

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18

Jean-Pierre, Garry, Necmi Altin, Ahmad El Shafei i Adel Nasiri. "Overall Efficiency Improvement of a Dual Active Bridge Converter Based on Triple Phase-Shift Control". Energies 15, nr 19 (22.09.2022): 6933. http://dx.doi.org/10.3390/en15196933.

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This paper proposes a control scheme based on an optimal triple phase-shift (TPS) control for dual active bridge (DAB) DC–DC converters to achieve maximum efficiency. This is performed by analyzing, quantifying, and minimizing the total power losses, including the high-frequency transformer (HFT) and primary and secondary power modules of the DAB converter. To analyze the converter, three operating zones were defined according to low, medium, and rated power. To obtain the optimal TPS variables, two optimization techniques were utilized. In local optimization (LO), the offline particle swarm optimization (PSO) method was used, resulting in numerical optimums. This method was used for the low and medium power regions. The Lagrange multiplier (LM) was used for global optimization (GO), resulting in closed-form expressions for rated power. Detailed analyses and experimental results are given to verify the effectiveness of the proposed method. Additionally, obtained results are compared with the traditional single phase-shift (SPS) method, the optimized dual phase-shift (DPS) method, and TPS method with RMS current minimization to better highlight the performance of the proposed approach.

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19

Calderon, Carlos, Andres Barrado, Alba Rodriguez, Pedro Alou, Antonio Lazaro, Cristina Fernandez i Pablo Zumel. "General Analysis of Switching Modes in a Dual Active Bridge with Triple Phase Shift Modulation". Energies 11, nr 9 (12.09.2018): 2419. http://dx.doi.org/10.3390/en11092419.

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This paper provides an exhaustive analysis of the Dual-Active-Bridge with Triple-Phase-Shift (DAB-TPS) modulation and other simpler ones, identifying all the possible switching modes to operate the DAB in both power flow directions, and for any input-to-output voltage range and output power. This study shows four cases and seven switching modes for each case when the energy flows in one direction. That means that the DAB operates up to fifty-six different switching modes when the energy flows in both directions. Analytical expressions for the inductor current, the output power, and the boundaries between switching modes are provided for all cases. Additionally, the combination of control variables to achieve Zero-Voltage-Switching (ZVS) or Zero-Current-Switching (ZCS) is provided for each case and switching mode, by showing which switching modes obtain ZVS or ZCS for the whole power range and all switches—independent of the input-to-output voltage ratio. Therefore, the most interesting cases, switching mode and modulation for using the DAB are identified. Additionally, experimental validation has been carried out with a 250 W prototype. This analysis is a proper tool to design the DAB in the optimum switching mode, reducing the RMS current and achieving to increase efficiency and the power density.

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20

Coelho, Sergio, Tiago J. C. Sousa, Vitor Monteiro, Luis Machado, Joao L. Afonso i Carlos Couto. "Comparison and Validation of Five Modulation Strategies for a Dual Active Bridge Converter". EAI Endorsed Transactions on Energy Web 9, nr 6 (22.02.2023): e2. http://dx.doi.org/10.4108/ew.v9i6.3066.

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This paper addresses the comparison and validation of different modulations for an isolated dc-dc dual active bridge converter (DAB), namely, Duty-Cycle Modulation, Single Phase Shift (SPS), Dual Phase Shift (DPS), Extended Phase Shift (EPS) and Triple Phase Shift (TPS). Given the DAB’s applicability in a wide variety of power electronics branches, several control strategies are being studied to improve its efficiency, by mitigating circulating currents and reactive power. Regardless of the chosen architecture, appropriate modulations must be adopted, assessing which one presents the better cost-benefit ratio. This simulation-based analysis aims to investigate the DAB performance when controlled by the above-mentioned modulations and operating with a nominal power of 3.6 kW. Thus, simulation results show that only SPS, DPS, and TPS are considered suitable, while Duty-Cycle Modulation has time limitations during power transfer and EPS is more appropriate for dynamic power applications.

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21

Narasimha, S., i Surender Reddy Salkuti. "An improved closed loop hybrid phase shift controller for dual active bridge converter". International Journal of Electrical and Computer Engineering (IJECE) 10, nr 2 (1.04.2020): 1169. http://dx.doi.org/10.11591/ijece.v10i2.pp1169-1178.

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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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22

Todeva, Emanuela, i Mike Danson. "Special Issue: Regional Dimensions of the Triple Helix Model". Industry and Higher Education 30, nr 1 (luty 2016): 5–11. http://dx.doi.org/10.5367/ihe.2016.0294.

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This paper introduces the rationale for the special issue and its contributions, which bridge the literature on regional development and the Triple Helix model. The concept of the Triple Helix at the sub-national, and specifically regional, level is established and examined, with special regard to regional economic development founded on innovation and research activities. The discussion on regional competitiveness lays the foundations for the exploration of contrasting environments, sectors and administrations. The authors offer a framework that captures the array of institutions, driving factors, players and powers active at the regional level. This introductory paper presents and summarizes the articles that follow, emphasizing their contribution to the literature. It shows how the various contributions exploit the Triple Helix model to analyse policy delivery at a regional level, and describes how other models and characterizations of interactions and collaborations between institutions are being associated with the Triple Helix concept, highlighting both their shortcomings and the way they enrich its application.

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23

Bey, Romain, Benoit Coasne i Cyril Picard. "Carbon dioxide as a line active agent: Its impact on line tension and nucleation rate". Proceedings of the National Academy of Sciences 118, nr 33 (12.08.2021): e2102449118. http://dx.doi.org/10.1073/pnas.2102449118.

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By considering a water capillary bridge confined between two flat surfaces, we investigate the thermodynamics of the triple line delimiting this solid–liquid–vapor system when supplemented in carbon dioxide. In more detail, by means of atom-scale simulations, we show that carbon dioxide accumulates at the solid walls and, preferably, at the triple lines where it plays the role of a line active agent. The line tension of the triple line, which is quantitatively assessed using an original mechanical route, is shown to be driven by the line excess concentrations of the solute (carbon dioxide) and solvent (water). Solute accumulation at the lines decreases the negative line tension (i.e., more negative) while solvent depletion from the lines has the opposite effect. Such an unprecedented quantitative assessment of gas-induced line tension modifications shows that the absolute value of the negative line tension increases upon increasing the carbon dioxide partial pressure. As a striking example, for hydrophilic surfaces, the line tension is found to increase by more than an order of magnitude when the carbon dioxide pressure exceeds 3 MPa. By considering the coupling between line and surface effects induced by gaseous adsorption, we hypothesize from the observed gas concentration-dependent line tension a nontrivial impact on heterogeneous nucleation of nanometric critical nuclei.

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24

Rolak, Michał, Maciej Twardy i Cezary Soból. "Generalized Average Modeling of a Dual Active Bridge DC-DC Converter with Triple-Phase-Shift Modulation". Energies 15, nr 16 (22.08.2022): 6092. http://dx.doi.org/10.3390/en15166092.

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This paper shows an elaboration of an equivalent electrical circuit of a Dual Active Bridge (DAB) and its application as a versatile tool for steady-states analysis in wide range of operating conditions. This work analyses the converter which is controlled with a coherently defined Triple Phase-Shift (TPS) modulation which allows appropriate switching functions to be written, thus enabling the circuit’s state-space equations to be derived. Due to this approach, a Fourier series expansion may be easily applied to utilize Generalized Averaged Modeling (GAM)—a convenient method for modeling resonant and quasi-resonant power converters. Moreover, this paper shows the utilization of the GAM model higher harmonics’ complex magnitudes to calculate the steady-state power characteristics for bidirectional operation; additionally, a method for a particular state variable waveform signal reconstruction is presented. All the discussed model properites are validated with a 1.5 kW 100 kHz SiC-based DAB prototype.

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25

Akbar, Seema Mir, Ammar Hasan, Alan J. Watson i Pat Wheeler. "Model Predictive Control With Triple Phase Shift Modulation for a Dual Active Bridge DC-DC Converter". IEEE Access 9 (2021): 98603–14. http://dx.doi.org/10.1109/access.2021.3095553.

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Zhai, Jingyu, Fusheng Wang, Lizhong Ye i Rui Li. "Optimal Strategy of Triple Phase Shift Transient DC Bias for Dual Active Bridge DC-DC Converter". E3S Web of Conferences 185 (2020): 01088. http://dx.doi.org/10.1051/e3sconf/202018501088.

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Under the traditional phase shift control, dual active bridge DC-DC converter (DAB) has a transient bias on the inductance current when the phase shift ratio changes suddenly, which leads to increase in the current stress of switch tubes and even unidirectional saturation of the transformer. All those will affect the stable operation of the converter. This paper focuses on quantifying the transient DC bias model on the control of triple phase shift when phase shift ratios change, and then the strategy proposed by the paper can eliminate the DC bias within one switching period and reduce current stress and response time by adjusting the drive signal during the transient transition process. Finally, the proposed strategy is verified by simulation results from Matlab/Simulink software.

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27

Chen, Linglin, Lyuyi Lin, Shuai Shao, Fei Gao, Zhenyu Wang, Patrick W. Wheeler i Tomislav Dragicevic. "Moving Discretized Control Set Model-Predictive Control for Dual-Active Bridge With the Triple-Phase Shift". IEEE Transactions on Power Electronics 35, nr 8 (sierpień 2020): 8624–37. http://dx.doi.org/10.1109/tpel.2019.2962838.

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28

Biswas, Ishita, Debaprasad Kastha i Prabodh Bajpai. "Small Signal Modeling and Decoupled Controller Design for a Triple Active Bridge Multiport DC–DC Converter". IEEE Transactions on Power Electronics 36, nr 2 (luty 2021): 1856–69. http://dx.doi.org/10.1109/tpel.2020.3006782.

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29

Li, Rui, Fusheng Wang i Weizheng Cheng. "Soft-Switching Modulation Strategy of High-Frequency Dual Active Bridge Converter Based on Triple Phase-Shifting Control". Journal of Physics: Conference Series 2030, nr 1 (1.09.2021): 012023. http://dx.doi.org/10.1088/1742-6596/2030/1/012023.

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30

Yu, Yue, Keisuke Masumoto, Keiji Wada i Yuichi Kado. "A DC Power Distribution System in a Data Center using a Triple Active Bridge DC-DC Converter". IEEJ Journal of Industry Applications 7, nr 3 (1.05.2018): 202–9. http://dx.doi.org/10.1541/ieejjia.7.202.

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31

Wu, Kuiyuan, Clarence W. de Silva i William G. Dunford. "Stability Analysis of Isolated Bidirectional Dual Active Full-Bridge DC–DC Converter With Triple Phase-Shift Control". IEEE Transactions on Power Electronics 27, nr 4 (kwiecień 2012): 2007–17. http://dx.doi.org/10.1109/tpel.2011.2167243.

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32

Bu, Qinglei, Huiqing Wen, Jiacheng Wen, Yihua Hu i Yang Du. "Transient DC Bias Elimination of Dual-Active-Bridge DC–DC Converter With Improved Triple-Phase-Shift Control". IEEE Transactions on Industrial Electronics 67, nr 10 (październik 2020): 8587–98. http://dx.doi.org/10.1109/tie.2019.2947809.

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33

Koneh, Norbert Njuanyi, Jae-Sub Ko i Dae-Kyong Kim. "Simulations of the Comparative Study of the Single-Phase Shift and the Dual-Phase Shift-Controlled Triple Active Bridge Converter". Electronics 11, nr 20 (12.10.2022): 3274. http://dx.doi.org/10.3390/electronics11203274.

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This paper presents a comparative study between the traditional phase shift (also referred to as the Single-Phase Shift (SPS)) and the Dual-Phase Shift (DPS) controlled Triple Active Bridge (TAB) converter. Being a multi-port DC-DC converter with flexible power flow control and characterized by high power density, the TAB converter is applicable in almost any situation where a DC-DC converter is needed. With the availability of multiple control schemes, this work highlights the advantages and disadvantages of the most employed control scheme used on the TAB converter, in comparison with the DPS control scheme that has so far been applied only on Dual-Active Bridge (DAB) converters. As an example, for a TAB converter with a 14 kW maximum power capacity, the work sees the comparison of the backflow power, the maximum possible current, the processed power at the different ports of the converter, the transformer voltage and current waveforms, and the Total Harmonic Distortion (THD). Based on the results obtained, we found that the DPS-controlled TAB converter was more efficient when applied to the TAB converter compared to the traditional phase shift control algorithm.

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34

Ohno, Takanobu, i Nobukazu Hoshi. "Deriving the Operating Region for Intermittent Control of Triple Active Bridge to Suppress Cross-currents between Power Supplies". IEEJ Transactions on Industry Applications 141, nr 12 (1.12.2021): 1001–10. http://dx.doi.org/10.1541/ieejias.141.1001.

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35

Nishimoto, Koya, Yuichi Kado i Keiji Wada. "Implementation of Decoupling Power Flow Control System in Triple Active Bridge Converter Rated at 400V, 10kW, and 20kHz". IEEJ Journal of Industry Applications 7, nr 5 (1.09.2018): 410–15. http://dx.doi.org/10.1541/ieejjia.7.410.

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36

Wu, Fengjiang, Kaixuan Wang i Jianyong Su. "TAB Series-Resonant DC-DC Converter and Multi-Phase-Shift Based Global Optimization Modulation". Applied Sciences 12, nr 13 (4.07.2022): 6783. http://dx.doi.org/10.3390/app12136783.

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In this paper, a triple-active-bridge resonant dc-dc converter with the ability of topology-level power decoupling is proposed. The power coupling between the two dc ports is eliminated by adding a resonant capacitor to the common port. The operation principle and the steady-state power characteristics are analyzed. On this basis, a multi-phase-shift-based global optimization modulation is proposed to minimize the RMS values of the transformer currents in the entire power and voltage range, thus increasing the global efficiency. An experimental prototype is built to verify the correctness and availability of the proposed power decoupling topology and optimized modulation.

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Cheng, Weizheng, Fusheng Wang i Rui Li. "Optimal control strategy of global return power based on soft switching under triple phase-shift control". Journal of Physics: Conference Series 2290, nr 1 (1.06.2022): 012068. http://dx.doi.org/10.1088/1742-6596/2290/1/012068.

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Abstract Return power and soft switching are important performance indicators for dual active bridge DC-DC converters (DAB). Aiming at the problem that the DAB converter has a large return power under the traditional control strategy, a control strategy that optimizes the return power in the full power range is proposed, and on this basis, the soft switching range of the switching device is increased. The control strategy not only ensures the minimum return power in the entire power range, but also increases the soft switching range, reduces the switching loss, and further improves the efficiency. Finally, an experimental platform is built for verification, and the experimental results verify the validity of the theoretical analysis.

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Wang, Peng, Xianzhong Chen, Chaonan Tong, Pengyu Jia i Chunxue Wen. "Large- and Small-Signal Average-Value Modeling of Dual-Active-Bridge DC–DC Converter With Triple-Phase-Shift Control". IEEE Transactions on Power Electronics 36, nr 8 (sierpień 2021): 9237–50. http://dx.doi.org/10.1109/tpel.2021.3052459.

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Zhang, Jianyu, Yuanhong Tang, Weihao Hu, Zhenyuan Zhang, Jian Li i Zhe Chen. "Minimum current stress operation of dual active half-bridge converter using triple phase shift control for renewable energy applications". Energy Reports 8 (czerwiec 2022): 547–53. http://dx.doi.org/10.1016/j.egyr.2022.01.068.

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Song, Chaochao, Alian Chen, Yiwei Pan, Chunshui Du i Chenghui Zhang. "Modeling and Optimization of Dual Active Bridge DC-DC Converter with Dead-Time Effect under Triple-Phase-Shift Control". Energies 12, nr 6 (13.03.2019): 973. http://dx.doi.org/10.3390/en12060973.

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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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Shen, Kai, Anping Tong, Chi Shao, Lijun Hang, Yuanbin He, Yao Zhang, Guojie Li i Jianmin Zhang. "ZVS Control strategy of dual active bridge DC/DC converter with triple-phase-shift modulation considering RMS current optimization". Journal of Engineering 2019, nr 18 (1.07.2019): 4708–12. http://dx.doi.org/10.1049/joe.2018.9341.

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Bhattacharjee, Amit Kumar, i Issa Batarseh. "Optimum Hybrid Modulation for Improvement of Efficiency Over Wide Operating Range for Triple-Phase-Shift Dual-Active-Bridge Converter". IEEE Transactions on Power Electronics 35, nr 5 (maj 2020): 4804–18. http://dx.doi.org/10.1109/tpel.2019.2943392.

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Fiaz, Muhammad Faisal, Sandro Calligaro, Mattia Iurich i Roberto Petrella. "Analytical Modeling and Control of Dual Active Bridge Converter Considering All Phase-Shifts". Energies 15, nr 8 (7.04.2022): 2720. http://dx.doi.org/10.3390/en15082720.

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In the field of power electronics-based electrical power conversion, the Dual Active Bridge (DAB) topology has become very popular in recent years due to its characteristics (e.g., bidirectional operation and galvanic isolation), which are particularly suitable to applications such as interface to renewable energy sources, battery storage systems and in smart grids. Although this converter type has been extensively investigated, its analysis and control still pose many challenges, due to the multiple control variables that affect the complex behavior of the converter. This paper presents a theoretical model of the single-phase DAB converter. The proposed model is very general, i.e., it can consider any modulation technique and operating condition. In particular, the converter is seen as composed by four legs, each capable of generating voltage on the inductor, and by the two output legs, which can steer the resulting inductor current to the load. Three variables are considered as the control inputs, i.e., the phase-shifts with respect to one leg. This approach results in a very simple yet accurate closed-form algorithm for obtaining the inductor current waveform. Moreover, a novel analytical model is proposed for calculating the average output current, based on the phase-shift values, independently of the output voltage. It is also shown that average output current can be varied cycle-by-cycle, with no further dynamics. In fact, average output current is not affected by the initial value of inductor current or by DC offset (which may arise during transients). The proposed models can be exploited at several stages of development of a DAB: during the design stage, for fast iteration, when selecting its operating points and when designing the control. In fact, based on the analytical results, a novel control loop is proposed, which adopts a “fictitious” (i.e., open-loop) inner current regulation loop, which can be applied to any modulation scheme (e.g., Single Phase-Shift, Triple Phase-Shift, etc.). The main advantage of this control scheme is that the simple dynamics of the output voltage versus the average output current can be decoupled from the complicated relationship between the phase-shifts and the output current. Moreover, a Finite Control Set (FCS) method is proposed, which selects the optimal operating points for each operating condition and control request, ensuring full Zero-Voltage Switching (ZVS) in all cases. The analytical results obtained and control methods proposed are verified through simulations and extensive experimental tests.

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Sun, Xiangdong, Zhixuan Wang, Qi Zhang i Guitao Chen. "Correction to: Variable frequency triple‑phase‑shift modulation strategy for minimizing RMS current in dual‑active‑bridge DC‑DC converters". Journal of Power Electronics 21, nr 7 (12.05.2021): 1106. http://dx.doi.org/10.1007/s43236-021-00257-1.

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Shu, Liangcai, Wu Chen, Rongguan Li, Ke Zhang, Fujin Deng, Yubo Yuan i Tao Wang. "A Three-Phase Triple-Voltage Dual-Active-Bridge Converter for Medium Voltage DC Transformer to Reduce the Number of Submodules". IEEE Transactions on Power Electronics 35, nr 11 (listopad 2020): 11574–88. http://dx.doi.org/10.1109/tpel.2020.2988280.

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Olsson, Karen M., i Massimiliano Palazzini. "Challenges in pulmonary hypertension: managing the unexpected". European Respiratory Review 24, nr 138 (30.11.2015): 674–81. http://dx.doi.org/10.1183/16000617.0060-2015.

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The diverse challenges associated with diagnosis and management of patients with pulmonary hypertension are illustrated in this case-based review. Case 1 describes a patient diagnosed with pulmonary arterial hypertension (PAH) with right heart failure and active systemic lupus erythematosus who was effectively treated with an up-front triple combination of PAH therapies and immunosuppressive therapy. In case 2, a diagnosis of pulmonary veno-occlusive disease was reached after a combined approach of clinical suspicion, physical examination, and invasive and noninvasive tests. Cautious PAH therapy and high-dose diuretics provided clinical benefit in this patient and served as a bridge to lung transplantation. These cases highlight the need for ongoing follow-up of patients with PAH, comprising frequent assessment of treatment success and continued diagnostic evaluation.

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Yu, Yue, i Keiji Wada. "Simulation Study of Power Management for a Highly Reliable Distribution System using a Triple Active Bridge Converter in a DC Microgrid". Energies 11, nr 11 (16.11.2018): 3178. http://dx.doi.org/10.3390/en11113178.

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Owing to the acute energy shortage issue and the increasing energy demands of information and communication technology systems worldwide, the development of a DC microgrid that can utilize renewable energy sources, such as wind and photovoltaic power, has been accelerated. Therefore, power management for DC microgrid distributed systems is promoted to achieve high reliability and efficiency in power distribution systems. For industry and power transmission applications such as data centers, power management with the help of DC converters is highly recommended. In this paper, we propose a prototype of a power distribution system with a triple active bridge (TAB) converter for data centers in the DC microgrid. Moreover, we introduce a power management approach for a distribution system using the TAB converter. Finally, we perform simulations of the proposed configuration to verify the controllability of the circuit performance and the high reliability of the system.

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Pantaleon, E., i D. Sal y Rosas. "Grid-connected photovoltaic system with power smoothing". Journal of Physics: Conference Series 2180, nr 1 (1.01.2022): 012007. http://dx.doi.org/10.1088/1742-6596/2180/1/012007.

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Abstract This paper analyzes the power smoothing of grid-connected photovoltaic (PV) systems under fast irradiance changes. The analyzed converter is composed of a triple active bridge series-resonant (TABSR) DC-DC converter cascaded with a voltage source inverter (VSI). Two controlled variables are considered: battery current and the PV voltage. The TABSR DC-DC converter is modeled as controlled current sources for the battery and the PV ports. The ramp rate (RR) control algorithm is used to smooth the PV output power profile enhancing the power delivered to the grid. Four ramp rates (10%, 5%, 2% and 1%) are used to evaluate the RR control algorithm and the battery state of charge (SOC) response. Therefore, the battery can be sized appropriately. Real data for irradiance and temperature in an overcast day is used to verify the effectiveness of the proposed system.

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Zeng, Jinhui, Yao Rao, Zheng Lan, Dong He, Fan Xiao i Bei Liu. "Multi-Objective Unified Optimal Control Strategy for DAB Converters with Triple-Phase-Shift Control". Energies 14, nr 20 (9.10.2021): 6444. http://dx.doi.org/10.3390/en14206444.

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To solve the problems of large current stress, difficult soft-switching of all switches, and slow dynamic response of dual active bridge converters, a multi-objective unified optimal control strategy based on triple-phase-shift control was proposed. The forward power flow global modes of triple-phase-shift control were analyzed, and three high-efficiency modes were selected to establish the analytical models of current stress and soft-switching. Combined with these models, the optimal solutions in different modes were derived by using the cost function-optimization equation to overcome the limitation of the Lagrange multiplier method, such that the DAB converter achieved the minimum current stress, and all switches operated in the soft-switching state over the entire power range. At the same time, the virtual power component was introduced in the phase-shift ratio combination, which improved the dynamic response of output voltage under the input voltage or load steps changed by power control. The theoretical analysis and experimental results show that the proposed control strategy can optimize the performance of the DAB converter from three aspects, such as current stress, soft-switching, and dynamic response, which achieves multi-objective optimization of the steady-state and dynamic performance of DAB converters.

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Gao, Shengwei, Xi Zha, Congwei Hu i Chenming Dong. "A New Method on Optimal Control of Triple-Phase-Shift Angle Based on MOPSO in DAB System". International Journal of Pattern Recognition and Artificial Intelligence 35, nr 09 (12.05.2021): 2158007. http://dx.doi.org/10.1142/s0218001421580076.

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Nowadays, dual-active-bridge (DAB) DC/DC converter is widely used for its high power density and flexible operation mode. However, complex control variables and high reflux power are the main disadvantages of the system, which have become its development bottleneck. In view of this, this paper presents an in-depth analysis of the impacts of three phase-shifting degrees of freedom on the transmission power and effective values of the inductive current based on the triple-phase-shift (TPS) control strategy by deducing the relationship equations between the three degrees of freedom and the other two variables in the TPS control system. Based on the equations, the method of using the multi-objective particle swarm optimization (MOPSO) algorithm to optimize three phase shift angles is proposed, which cannot only improve the convergence speed of the optimal phase shift angle but also be ideal for solving nonlinear problems. The experimental results show that this method can improve the transmission power and reduce the effective value of inductive current.

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