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Dynamic multi‐agent dc‐bus reconfiguration in modular motor drives with a stacked polyphase bridge converter

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Abstract
A stacked polyphase bridge converter consists of multiple standard, three‐phase two‐level voltage source inverters connected in series to the same dc voltage source. The authors present a decentralised and dynamic dc‐bus reconfiguration strategy for this type of converter. The innovation of the proposed strategy lies in its ability to isolate or reactivate one of the inverters in the series connection online, even in motoring mode, enabling increased fault tolerance and an extended speed range. Both the required hardware alterations and the multi‐agent control strategy are addressed. Its major benefits compared to the state‐of‐the‐art are that only two additional active, unidirectional semiconductor switches are required per inverter, and that the control is based on local computations, local measurements and neighbour‐to‐neighbour communication only. Hence, the scalability and reliability of the hardware are extended towards the control. Simulations and experimental results on a 4 kW modular axial‐flux PMSM prove the feasibility of the concept, and validate that the dc‐bus can be reconfigured in 100 ms, without torque interruption.
Keywords
Electrical and Electronic Engineering, AC motor drives, motor drives, CONTROL STRATEGIES, OPERATION, LINK

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MLA
Verkroost, Lynn, et al. “Dynamic Multi‐agent Dc‐bus Reconfiguration in Modular Motor Drives with a Stacked Polyphase Bridge Converter.” IET ELECTRIC POWER APPLICATIONS, 2023, doi:10.1049/elp2.12376.
APA
Verkroost, L., Vande Ghinste, A., da Rocha, L. F., De Kooning, J., De Belie, F., Sergeant, P., … Vansompel, H. (2023). Dynamic multi‐agent dc‐bus reconfiguration in modular motor drives with a stacked polyphase bridge converter. IET ELECTRIC POWER APPLICATIONS. https://doi.org/10.1049/elp2.12376
Chicago author-date
Verkroost, Lynn, Alexander Vande Ghinste, Lorrana Faria da Rocha, Jeroen De Kooning, Frederik De Belie, Peter Sergeant, Pål Keim Olsen, and Hendrik Vansompel. 2023. “Dynamic Multi‐agent Dc‐bus Reconfiguration in Modular Motor Drives with a Stacked Polyphase Bridge Converter.” IET ELECTRIC POWER APPLICATIONS. https://doi.org/10.1049/elp2.12376.
Chicago author-date (all authors)
Verkroost, Lynn, Alexander Vande Ghinste, Lorrana Faria da Rocha, Jeroen De Kooning, Frederik De Belie, Peter Sergeant, Pål Keim Olsen, and Hendrik Vansompel. 2023. “Dynamic Multi‐agent Dc‐bus Reconfiguration in Modular Motor Drives with a Stacked Polyphase Bridge Converter.” IET ELECTRIC POWER APPLICATIONS. doi:10.1049/elp2.12376.
Vancouver
1.
Verkroost L, Vande Ghinste A, da Rocha LF, De Kooning J, De Belie F, Sergeant P, et al. Dynamic multi‐agent dc‐bus reconfiguration in modular motor drives with a stacked polyphase bridge converter. IET ELECTRIC POWER APPLICATIONS. 2023;
IEEE
[1]
L. Verkroost et al., “Dynamic multi‐agent dc‐bus reconfiguration in modular motor drives with a stacked polyphase bridge converter,” IET ELECTRIC POWER APPLICATIONS, 2023.
@article{01HGRTWRMJ52570K9YA6GS9N7S,
  abstract     = {{A stacked polyphase bridge converter consists of multiple standard, three‐phase two‐level voltage source inverters connected in series to the same dc voltage source. The authors present a decentralised and dynamic dc‐bus reconfiguration strategy for this type of converter. The innovation of the proposed strategy lies in its ability to isolate or reactivate one of the inverters in the series connection online, even in motoring mode, enabling increased fault tolerance and an extended speed range. Both the required hardware alterations and the multi‐agent control strategy are addressed. Its major benefits compared to the state‐of‐the‐art are that only two additional active, unidirectional semiconductor switches are required per inverter, and that the control is based on local computations, local measurements and neighbour‐to‐neighbour communication only. Hence, the scalability and reliability of the hardware are extended towards the control. Simulations and experimental results on a 4 kW modular axial‐flux PMSM prove the feasibility of the concept, and validate that the dc‐bus can be reconfigured in 100 ms, without torque interruption.}},
  author       = {{Verkroost, Lynn and Vande Ghinste, Alexander and da Rocha, Lorrana Faria and De Kooning, Jeroen and De Belie, Frederik and Sergeant, Peter and Olsen, Pål Keim and Vansompel, Hendrik}},
  issn         = {{1751-8660}},
  journal      = {{IET ELECTRIC POWER APPLICATIONS}},
  keywords     = {{Electrical and Electronic Engineering,AC motor drives,motor drives,CONTROL STRATEGIES,OPERATION,LINK}},
  language     = {{eng}},
  title        = {{Dynamic multi‐agent dc‐bus reconfiguration in modular motor drives with a stacked polyphase bridge converter}},
  url          = {{http://doi.org/10.1049/elp2.12376}},
  year         = {{2023}},
}

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