Comparative evaluation of passive damping topologies for parallel grid-connected converters with LCL filters

Remus Narcis Beres, Xiongfei Wang, Frede Blaabjerg, Claus Leth Bak, Marco Liserre

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26 Citationer (Scopus)

Abstrakt

In this paper a comprehensive analysis of three passive damping methods is done under parallel operation of multiple current controlled voltage source converters. One could argue that a well damped LCL filter with no peaking in the output impedance and stable designed controllers will turn into stable status under the parallel operation with other converters that share similar configuration. However, it is shown that this is not always the case, especially because of the coupling between converters and the grid impedance. For the considered ratings, under grid impedance variation, it is found that with grid-side current feedback the stability may be improved in parallel operation while for converter-side feedback, the stability of the current controller is always decreased compared with the single converter case. The proposed stability analysis and experimental tests demonstrates the theoretical analysis.
OriginalsprogEngelsk
TitelProceedings of the 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA)
Antal sider8
ForlagIEEE Press
Publikationsdatomaj 2014
Sider3320-3327
ISBN (Trykt)9781479927067
ISBN (Elektronisk)9781479927043
DOI
StatusUdgivet - maj 2014
Begivenhed2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA) - Hiroshima, Japan
Varighed: 18 maj 201421 maj 2014

Konference

Konference2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA)
LandJapan
ByHiroshima
Periode18/05/201421/05/2014

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