Reduction of DC-link Capacitor in Case of Cascade Multilevel Converters by means of Reactive Power Control

Ghanshyamsinh Vijaysinh Gohil, Huai Wang, Marco Liserre, Tamas Kerekes, Remus Teodorescu, Frede Blaabjerg

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20 Citationer (Scopus)
1652 Downloads (Pure)

Abstract

A method to selectively control the amount of dc link voltage ripple by processing desired reactive power by a DC/DC converter in isolated AC/DC or AC/DC/AC system is proposed. The concept can reduce the dc link capacitors used for balancing the input and output power and thereby limiting the voltage ripple. It allows the use of smaller dc link capacitor and hence a longer lifetime and at the same time high power density and low cost can be achieved. The isolated DC/DC converter is controlled to process the desired reactive power in addition to the active power. The control system to achieve this selective degree of compensation is proposed. Simulation results are also presented to support the idea.
OriginalsprogEngelsk
TitelProceedings of the 29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
Antal sider8
ForlagIEEE Press
Publikationsdato2014
Sider231-238
ISBN (Trykt)9781479923250
ISBN (Elektronisk)9781479923267
DOI
StatusUdgivet - 2014
Begivenhed29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014 - Fort Worth, TX, USA
Varighed: 16 mar. 201420 mar. 2014

Konference

Konference29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
Land/OmrådeUSA
ByFort Worth, TX
Periode16/03/201420/03/2014
NavnI E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
ISSN1048-2334

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