An Overview of Capacitive DC Links - Topology Derivation and Scalability Analysis

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Resumé

Capacitive DC links are widely used in Voltage Source Converters (VSC) for power balance, voltage ripple limitation, and short-term energy storage. Various passive and active capacitive DC-link solutions have been proposed intending to improve the reliability of the DC links qualitatively, making great effort to diverting the instantaneous pulsating power into extra reliable storage components. In this publication, a generic topology derivation method for single-phase power converters with active capacitive DC link integrated has been proposed, which can derive all existing topologies, and identify a few new topologies. According to the synthesis results, the main achievements in research on capacitive DC-link solutions are reviewed and presented chronologically as well as thematically ordered. Furthermore, the reliability-oriented design procedure is applied to size the chip area of active switching devices and the passive components to fulfill a specific lifetime target and system specification, as well as compare the overall capacitive energy storage, energy buffer ratio, and the cost of different solutions. The cost comparisons are performed with a scalable lifetime target and power rating. It reveals that different conclusions can be drawn with different lifetime targets in terms of cost-effectiveness.
OriginalsprogEngelsk
TidsskriftI E E E Transactions on Power Electronics
ISSN0885-8993
DOI
StatusE-pub ahead of print - maj 2019

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Scalability
Topology
Energy storage
Electric potential
Power converters
Cost effectiveness
Costs
Specifications

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@article{0ee394b798754dcdb62313425bab5fb9,
title = "An Overview of Capacitive DC Links - Topology Derivation and Scalability Analysis",
abstract = "Capacitive DC links are widely used in Voltage Source Converters (VSC) for power balance, voltage ripple limitation, and short-term energy storage. Various passive and active capacitive DC-link solutions have been proposed intending to improve the reliability of the DC links qualitatively, making great effort to diverting the instantaneous pulsating power into extra reliable storage components. In this publication, a generic topology derivation method for single-phase power converters with active capacitive DC link integrated has been proposed, which can derive all existing topologies, and identify a few new topologies. According to the synthesis results, the main achievements in research on capacitive DC-link solutions are reviewed and presented chronologically as well as thematically ordered. Furthermore, the reliability-oriented design procedure is applied to size the chip area of active switching devices and the passive components to fulfill a specific lifetime target and system specification, as well as compare the overall capacitive energy storage, energy buffer ratio, and the cost of different solutions. The cost comparisons are performed with a scalable lifetime target and power rating. It reveals that different conclusions can be drawn with different lifetime targets in terms of cost-effectiveness.",
author = "Haoran Wang and Huai Wang and Guorong Zhu and Frede Blaabjerg",
year = "2019",
month = "5",
doi = "10.1109/TPEL.2019.2920257",
language = "English",
journal = "I E E E Transactions on Power Electronics",
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An Overview of Capacitive DC Links - Topology Derivation and Scalability Analysis. / Wang, Haoran; Wang, Huai; Zhu, Guorong; Blaabjerg, Frede.

I: I E E E Transactions on Power Electronics, 05.2019.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

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AU - Wang, Haoran

AU - Wang, Huai

AU - Zhu, Guorong

AU - Blaabjerg, Frede

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Y1 - 2019/5

N2 - Capacitive DC links are widely used in Voltage Source Converters (VSC) for power balance, voltage ripple limitation, and short-term energy storage. Various passive and active capacitive DC-link solutions have been proposed intending to improve the reliability of the DC links qualitatively, making great effort to diverting the instantaneous pulsating power into extra reliable storage components. In this publication, a generic topology derivation method for single-phase power converters with active capacitive DC link integrated has been proposed, which can derive all existing topologies, and identify a few new topologies. According to the synthesis results, the main achievements in research on capacitive DC-link solutions are reviewed and presented chronologically as well as thematically ordered. Furthermore, the reliability-oriented design procedure is applied to size the chip area of active switching devices and the passive components to fulfill a specific lifetime target and system specification, as well as compare the overall capacitive energy storage, energy buffer ratio, and the cost of different solutions. The cost comparisons are performed with a scalable lifetime target and power rating. It reveals that different conclusions can be drawn with different lifetime targets in terms of cost-effectiveness.

AB - Capacitive DC links are widely used in Voltage Source Converters (VSC) for power balance, voltage ripple limitation, and short-term energy storage. Various passive and active capacitive DC-link solutions have been proposed intending to improve the reliability of the DC links qualitatively, making great effort to diverting the instantaneous pulsating power into extra reliable storage components. In this publication, a generic topology derivation method for single-phase power converters with active capacitive DC link integrated has been proposed, which can derive all existing topologies, and identify a few new topologies. According to the synthesis results, the main achievements in research on capacitive DC-link solutions are reviewed and presented chronologically as well as thematically ordered. Furthermore, the reliability-oriented design procedure is applied to size the chip area of active switching devices and the passive components to fulfill a specific lifetime target and system specification, as well as compare the overall capacitive energy storage, energy buffer ratio, and the cost of different solutions. The cost comparisons are performed with a scalable lifetime target and power rating. It reveals that different conclusions can be drawn with different lifetime targets in terms of cost-effectiveness.

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