Model predictive control of input‐series output‐parallel dual active bridge converters based DC transformer

Zhang, Hang; Li, Yaohua; Li, Zixin; Zhao, Cong; Gao, Fanqiang; Hu, Yujie; Luo, Long; Luan, Kedong; Wang, Ping

doi:10.1049/iet-pel.2019.1061

Cited by 22 publications

(5 citation statements)

References 35 publications

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“…To validate the proposed accelerated equivalent modelling method, a scale-down SST system in [33] is used to compare with the simulation results. VI.…”

Section: Experimental Validationmentioning

confidence: 99%

Accelerated Electromagnetic Transient (EMT) Equivalent Model of Solid-State Transformer

Gao

Feng

Ding

et al. 2022

IEEE J. Emerg. Sel. Topics Power Electron.

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Accurate and efficient electromagnetic transient (EMT) simulation of various types of solid-state transformers (SST) is extremely time-consuming due to the complex module structure, flexible topology connections, large number of electrical nodes and simulation time-steps limited in the range of micro-seconds. Therefore, it is urgent to develop the EMT equivalent modelling and fast simulation of SSTs for system level studies. Taking the modular multilevel converter (MMC) based SST as an example, this paper proposes an accelerated EMT model which focuses on the equivalence of the dual active bridge (DAB) based high-frequency link (HFL) in the SST. Compared with the existing algorithms, two critical factors of the proposed method that contribute the most to the efficiency improvement are the preprocessing of the nodal admittance equation and the conversion of the short-circuit admittance parameters. The proposed model is verified in PSCAD/EMTDC by comparing it with the detailed EMT model. The results show that the accelerated model is one to two orders of magnitude faster than the detailed model without sacrificing the accuracy. The experiment validation also confirms the validity of the proposed model.

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“…To validate the proposed accelerated equivalent modelling method, a scale-down SST system in [33] is used to compare with the simulation results. VI.…”

Section: Experimental Validationmentioning

confidence: 99%

Accelerated Electromagnetic Transient (EMT) Equivalent Model of Solid-State Transformer

Gao

Feng

Ding

et al. 2022

IEEE J. Emerg. Sel. Topics Power Electron.

Self Cite

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“…The configuration presented in Figure 20a is formed by input-series output-parallel (ISOP) connected DAB converters (some of them using a resonant tank). In [85,[97][98][99], MPC strategies are proposed for this modular topology, being all of them based on CCS-MPC. In the configuration of Figure 20b, the DAB converters are also parallel-connected at the output, but have isolated inputs.…”

Section: Mpc In Converter Topologies Typically Used In Sstsmentioning

confidence: 99%

Model Predictive Control for Solid State Transformers: Advances and Trends

2022

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Due to its high functionality, the solid state transformer (SST) represents an emerging technology with huge potential to replace the conventional low-frequency transformer (LFT) in a wide range of applications, including railway traction, smart grids, and others. On the other hand, model predictive control (MPC) has proven to be a highly promising control approach for several power electronics systems, especially those based on multiple power converters. Considering these facts, over recent years, different MPC techniques have been proposed for different types of SSTs. In addition to that, numerous MPC strategies have also been investigated for various power converters topologies that can be used in SSTs. However, a paper summarizing and discussing MPC strategies in the framework of SSTs has not yet been proposed in the literature, being the main goal of this work. In this paper, all the existing MPC techniques in complete SST topologies will be presented and discussed. In addition, for the sake of the example, an overview of MPC strategies in converter topologies typically used in SSTs will also be presented.

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“…To improve the dynamic performance, nonlinear MPC strategies are proposed to balance the power distribution among different SMs [76]. To reduce the system iteration and simplify the calculation process, a hybrid PI-MPC control scheme is introduced in [77], where the current stress of the IPOP connected DAB converters (IPOP-DAB) can be decreased and the efficiency can be improved.…”

Section: Power Balance Control Of Modular Dab-based Convertermentioning

confidence: 99%

“…PI-based reshaped impedance scheme [71], cross-feedback control [78], POVG schemes [72], master-slavebased IVS control strategy [69], [70], master-slave-based OCS control [79], and decentralized inverse-droop control method [80] have good performance in ensuring IVS and adjusting the output voltage at the same time. MPC strategies are proposed to balance the power distribution among different SMs and improve dynamic performance [76].…”

Section: Introductionmentioning

confidence: 99%

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Data-driven control methods of dual-active-bridge-based grid-connected battery energy storage system

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Model predictive control of input‐series output‐parallel dual active bridge converters based DC transformer

Cited by 22 publications

References 35 publications

Accelerated Electromagnetic Transient (EMT) Equivalent Model of Solid-State Transformer

Accelerated Electromagnetic Transient (EMT) Equivalent Model of Solid-State Transformer

Model Predictive Control for Solid State Transformers: Advances and Trends

Data-driven control methods of dual-active-bridge-based grid-connected battery energy storage system

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