SOGI-based capacitor voltage feedback active damping in LCL-filtered grid converters

Zhen Xin, Xiongfei Wang, Poh Chiang Loh, Frede Blaabjerg

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1 Citationer (Scopus)

Abstrakt

The capacitor voltage feedback active damping control is an attractive way to suppress LCL-filter resonance especially for the systems where the capacitor voltage is used for grid synchronization, since no extra sensors are added. The derivative is the core of the capacitor voltage feedback active damping control. However, in digital systems, the discrete implementation of the derivative suffers from noise amplification and accuracy issues. To overcome these drawbacks, this paper proposes a new derivative method based on Second-Order Generalized Integrator. Theoretical study shows that the proposed derivative is more suited for capacitor voltage feedback active damping control. Experimental results validate the effectiveness of the proposed method.
OriginalsprogEngelsk
TitelProceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015
Antal sider6
ForlagIEEE Press
Publikationsdatojun. 2015
Sider1-6
DOI
StatusUdgivet - jun. 2015
BegivenhedIEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015 - Pullman Aachen Quellenhof hotel, Aachen, Tyskland
Varighed: 22 sep. 201525 sep. 2015

Konference

KonferenceIEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015
LokationPullman Aachen Quellenhof hotel
LandTyskland
ByAachen
Periode22/09/201525/09/2015

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