Design and development of a cascaded modular multi‐level converter based on current‐fed quadruple‐active bridge converters for grid integration of photovoltaic systems

Malekjamshidi, Zahra; Jafari, Mohammad

doi:10.1049/esi2.12002

Cited by 4 publications

(1 citation statement)

References 35 publications

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“…Since a three-port MAB converter or triple active bridge (TAB) converter can meet the requirements in many applications, it is the most explored type of MAB converter [77]. However, depending on the application, adding more active bridges to achieve a higher number of ports has been proposed, resulting in the quadruple active bridge (QAB) [12,17,23,39,40,43,[46][47][48][49]51,52,[54][55][56][60][61][62]70,[78][79][80][81][82][83][84][85][86][87][88][89][90], penta active bridge (PAB) [41], 6-port [91], 10-port [75], and 12-port [35,92,93] MAB converters. Although adding more ports can provide potential advantages over the DAB converter, converter analysis becomes more complicated, and a research gap arises between the conventional DAB and the various MAB converters.…”

Section: Introductionmentioning

confidence: 99%

A Survey on Multi-Active Bridge DC-DC Converters: Power Flow Decoupling Techniques, Applications, and Challenges

et al. 2023

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Multi-port DC-DC converters are a promising solution for a wide range of applications involving multiple DC sources, storage elements, and loads. Multi-active bridge (MAB) converters have attracted the interest of researchers over the past two decades due to their potential advantages such as high power density, high transfer ratio, and galvanic isolation, for example, compared to other solutions. However, the coupled power flow nature of MAB converters makes their control implementation difficult, and due to the multi-input, multi-output (MIMO) structure of their control systems, a decoupling control strategy must be designed. Various control and topology-level strategies are proposed to mitigate the coupling effect. This paper discusses the operating principles, applications, methods for analyzing power flow, advanced modulation techniques, and small signal modelling of the MAB converter. Having explained the origin of cross-coupling, the existing power flow decoupling methods are reviewed, categorized, and compared in terms of effectiveness and implementation complexity.

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Section: Introductionmentioning

confidence: 99%

A Survey on Multi-Active Bridge DC-DC Converters: Power Flow Decoupling Techniques, Applications, and Challenges

et al. 2023

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A simplified control parameter optimisation method of the hybrid modular multilevel converter in the medium‐voltage DC distribution network for improved stability under a weak AC system

Xu,

Xiao,

Jia

et al. 2024

IET Energy Syst Integration

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To improve the stability of the hybrid modular multilevel converter (MMC), a simplified dominant mode‐based control parameter optimisation method of the hybrid MMC system is proposed. Firstly, in the medium‐voltage DC distribution network, the small‐signal model of the hybrid MMC is established. Secondly, the influence of a weak AC system on stability is analysed through eigenvalue analysis. Finally, a simplified objective function is designed for eigenvalues of the dominant mode by considering only real parts, and improved small‐signal stability can be achieved by control parameters optimisation. The proposed method optimises all control parameters at the same time, which further reduces the number of algorithm iterations. Simulation results show that by the proposed control parameter optimisation method, the hybrid MMC has better transient performance and reduced disturbance under SCR variation, indicating a significantly improved system stability, and the dynamic response time can be reduced.

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MMC Based Solid State Transformer for Large-Scale Distributed PV Integration and Medium Voltage AC/DC Interconnection

Farzamkia,

Zhang,

Zou

et al. 2024

IEEE Trans. Power Delivery

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Design and development of a cascaded modular multi‐level converter based on current‐fed quadruple‐active bridge converters for grid integration of photovoltaic systems

Cited by 4 publications

References 35 publications

A Survey on Multi-Active Bridge DC-DC Converters: Power Flow Decoupling Techniques, Applications, and Challenges

A Survey on Multi-Active Bridge DC-DC Converters: Power Flow Decoupling Techniques, Applications, and Challenges

A simplified control parameter optimisation method of the hybrid modular multilevel converter in the medium‐voltage DC distribution network for improved stability under a weak AC system

MMC Based Solid State Transformer for Large-Scale Distributed PV Integration and Medium Voltage AC/DC Interconnection

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