Reliability of DC-link capacitors in power electronic converters

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    1 Scopus citations


    DC-link capacitors are widely used in power electronic converters to balance the instantaneous power difference between the input source and output load and to minimize voltage variation in the DC-link. In some applications, they are also used to provide energy storage. Figure 3.1 shows some typical configurations of power electronic conversion systems with capacitive DC-links. Such configurations cover a wide range of power electronics applications, for example, power factor corrections, wind turbines, photovoltaic systems, motor drives, electric vehicles, and lighting systems. It should be noted that a capacitive DC-link discussed here does not necessarily consist of capacitors only. There could also be some inductive components (e.g., DC choke) in the DC bus in some of the above applications.

    Original languageBritish English
    Title of host publicationReliability of Power Electronic Converter Systems
    PublisherInstitution of Engineering and Technology
    Number of pages23
    ISBN (Electronic)9781849199025
    ISBN (Print)9781849199018
    StatePublished - 1 Jan 2016


    • Capacitive dc-link
    • Capacitors
    • Dc bus
    • Dc-link capacitor reliability
    • Energy storage
    • Energy storage
    • Inductive component
    • Inspec keywords: power convertors
    • Power electronic converter
    • Power electronics
    • Power electronics applications
    • Power generation reliability
    • Voltage variation minimization


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