A Currentless Sorting and Selection based Capacitor-Voltage-Balancing Method for Modular Multilevel Converters

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8 Citationer (Scopus)
202 Downloads (Pure)

Resumé

This letter proposes a currentless sorting and selection (SAS)-based capacitor-voltage-balancing method for modular multilevel converters. Without the knowledge of arm-current signals, this method has almost the same performance as the conventional SAS method while reducing the sampling signals, compacting the control system, and saving the overall cost. In this letter, the derivative of the total capacitor voltage of an arm, instead of the arm current, is employed to determine which submodules should be inserted or bypassed. Furthermore, the efficacy of the proposed method is verified by experimental results.
OriginalsprogEngelsk
Artikelnummer8395396
TidsskriftIEEE Transactions on Power Electronics
Vol/bind34
Udgave nummer2
Sider (fra-til)1022 - 1025
Antal sider4
ISSN0885-8993
DOI
StatusUdgivet - feb. 2019

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Sorting
Capacitors
Signal sampling
Electric potential
Derivatives
Control systems
Costs

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abstract = "This letter proposes a currentless sorting and selection (SAS)-based capacitor-voltage-balancing method for modular multilevel converters. Without the knowledge of arm-current signals, this method has almost the same performance as the conventional SAS method while reducing the sampling signals, compacting the control system, and saving the overall cost. In this letter, the derivative of the total capacitor voltage of an arm, instead of the arm current, is employed to determine which submodules should be inserted or bypassed. Furthermore, the efficacy of the proposed method is verified by experimental results.",
keywords = "Capacitor voltage balancing, Currentless sorting and selection, Experiments, Modular Multilevel Converter",
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A Currentless Sorting and Selection based Capacitor-Voltage-Balancing Method for Modular Multilevel Converters. / Hu, Pengfei; Teodorescu, Remus; Wang, Songda; Li, Shuqi; Guerrero, Josep M.

I: IEEE Transactions on Power Electronics, Bind 34, Nr. 2, 8395396, 02.2019, s. 1022 - 1025.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - A Currentless Sorting and Selection based Capacitor-Voltage-Balancing Method for Modular Multilevel Converters

AU - Hu, Pengfei

AU - Teodorescu, Remus

AU - Wang, Songda

AU - Li, Shuqi

AU - Guerrero, Josep M.

PY - 2019/2

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N2 - This letter proposes a currentless sorting and selection (SAS)-based capacitor-voltage-balancing method for modular multilevel converters. Without the knowledge of arm-current signals, this method has almost the same performance as the conventional SAS method while reducing the sampling signals, compacting the control system, and saving the overall cost. In this letter, the derivative of the total capacitor voltage of an arm, instead of the arm current, is employed to determine which submodules should be inserted or bypassed. Furthermore, the efficacy of the proposed method is verified by experimental results.

AB - This letter proposes a currentless sorting and selection (SAS)-based capacitor-voltage-balancing method for modular multilevel converters. Without the knowledge of arm-current signals, this method has almost the same performance as the conventional SAS method while reducing the sampling signals, compacting the control system, and saving the overall cost. In this letter, the derivative of the total capacitor voltage of an arm, instead of the arm current, is employed to determine which submodules should be inserted or bypassed. Furthermore, the efficacy of the proposed method is verified by experimental results.

KW - Capacitor voltage balancing

KW - Currentless sorting and selection

KW - Experiments

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