Autonomous Distributed Power Network Consisting of Triple Active Bridge Converters

Kado, Yuichi; Katagiri, Keigo

doi:10.1109/es2de.2018.8494231

Cited by 7 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be noticed that in the case of low irradiation and heavy load, the power losses are higher and the TAB efficiency is reduced. 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].…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications

et al. 2021

View full text Add to dashboard Cite

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).

show abstract

Section: Simulation Results and Discussionmentioning

confidence: 99%

PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications

et al. 2021

View full text Add to dashboard Cite

show abstract

“…However, due to its coupled power flows, the complexity in modelling and control are dramatically increased. Various researches have been conducted on the control of TAB converters, with a focus on power flow management [11,12,[15][16][17]. In [11], a comprehensive control method is proposed using the decoupled control network.…”

Section: Introductionmentioning

confidence: 99%

“…However, system efficiency is not fully optimised. In [15, 16], the modelling and control of the TAB converter are discussed, considering a wide range of power distribution with the load factor and distribution ratio. However, these works are based on the fundamental harmonic approximation (FHA), which might not be accurate when the phase between bridges is highly shifted, and thus the waveforms contain large amounts of higher‐order harmonics.…”

Section: Introductionmentioning

confidence: 99%

Modelling and control of a triple‐active‐bridge converter

Zou

Khaligh

2020

IET power electron.

View full text Add to dashboard Cite

This study proposes a systematic approach to model and control a triple-active-bridge (TAB) converter for electric vehicle on-board charger applications. An innovative generalised-harmonic-approximation (GHA) modelling method is proposed to accurately predict the instantaneous current and voltage waveforms. Based on the GHA modelling, a control strategy for a TAB converter is proposed, which enables the power flow from grid to two batteries with high conversion efficiency while achieving zero-voltage switching operation. Compared to the conventional phase-shift modulation, the proposed control method achieves an extended operating range of simultaneous charging operation mode, especially under the unbalanced load conditions. As a proof-of-concept, a 600 W prototype is built and tested. The experimental results are presented including waveforms of different operation modes and efficiency measurements. The peak efficiency of the TAB converter under the G2B mode is measured as 97.6%. The experimental waveforms exhibit good agreement with the waveforms obtained through GHA modelling.

show abstract