Analysis on load-factor dependence of triple active bridge converter's transmission efficiency for autonomous power networks

Katagiri, Keigo; Nakagawa, Shota; Kado, Yuichi; Wãda, Keiji

doi:10.1109/tencon.2017.8228221

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…This is due to the general increase of losses with a high load factor and a low distributed ratio between the ports [29]. To be considered is that a disadvantage of the TAB consists in the reactive currents, always present in the ports also without power transfer [30]. V PV , I PV , P PV (black), V bus , I bus , P bus (blue), V BAT , I BAT , P BAT (red), SoC, Temperature.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications

et al. 2021

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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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Section: Simulation Results and Discussionmentioning

confidence: 99%

PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications

et al. 2021

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“…Secondly, the transmission efficiency of the TAB converter [27] and the power loss analysis of the three-winding transformer [28] have been previously examined by the author, as discussed in Section 4.…”

Section: Discussion Of the Tab Converter And Overall System Lossesmentioning

confidence: 99%

“…Reliability is an indication of the operation status of a component or a system composed of components during a specified time. To analyze the reliability of a power distribution system during normal system operation, calculations involving the failure rate and other indexes are employed [27]. In reliability analysis, the following parameters are generally employed:…”

Section: Definition Of the Reliabilitymentioning

confidence: 99%

Simulation Study of Power Management for a Highly Reliable Distribution System using a Triple Active Bridge Converter in a DC Microgrid

Wãda

2018

Energies

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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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“…where G is the energy associated with the power generation, and Q is the real energy consumption. Since the grid operates at alternate current, 110 VAC for the American market and 220 VAC for the European one, and because the electric vehicle batteries use continuous current, an AC/DC converter is mandatory; the insertion of this device introduces an energy loss that depends on the efficiency of the AC/DC converter [85][86][87].…”

Section: Energy Reservoirmentioning

confidence: 99%

Optimization of Grid Energy Balance Using Vehicle-to-Grid Network System

Armenta-Déu,

Demas

2024

Energies

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This paper proposes a methodological way to compensate for the imbalance between energy generation and consumption using a battery block from electric vehicles as an energy reservoir through the well-known vehicle-to-grid system (V2G). This method is based on a simulation process developed by the authors that takes into consideration the daily fluctuations in energy consumption as well as the power level generated by an energy source, either conventional, renewable, or hybrid. This study shows that for very large electric vehicle fleets, the system is rendered non-viable, since the remaining energy in the battery block that allows the electric vehicle to be usable during the daytime avoids having to compensate for the energy grid imbalance, only allowing it to cover a percentage of the energy imbalance, which the proposed methodology may optimize. The analysis of the proposed methodology also shows the viability of the system when being applied to a small fleet of electric vehicles, not only compensating for the energy imbalance but also preserving the required energy in the battery of the electric vehicle to make it run. This method allows for predicting the optimum size of an electric vehicle battery, which depends on the energy generation level, coverage factor of the energy imbalance, and size of the electric vehicle fleet.

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Analysis on load-factor dependence of triple active bridge converter's transmission efficiency for autonomous power networks

Cited by 6 publications

References 13 publications

PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications

PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications

Simulation Study of Power Management for a Highly Reliable Distribution System using a Triple Active Bridge Converter in a DC Microgrid

Optimization of Grid Energy Balance Using Vehicle-to-Grid Network System

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