A hybrid damping method for LLCL-filter based grid-tied inverter with a digital filter and an RC parallel passive damper

Weimin Wu, Zhe Lin, Yunjie Sun, Xiongfei Wang, Min Huang, Huai Wang, Frede Blaabjerg, Henry Shu-hung Chung

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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Abstrakt

Grid-tied inverters have been widely used to inject the renewable energies into the distributed power generation systems. However, a large variation of the grid impedance challenges the stability of the high-order power filter based grid-tied inverter. Many passive and active damping methods have been proposed to overcome this issue. Recently, a composite passive damping method for a high-order power filter based grid-tied inverter with an RC parallel damper and an RL series damper was presented to eliminate this problem, but at the cost of more material and power losses. In this paper, a hybrid damping method with a digital filter and an RC parallel damper is proposed. The design of the digital filter is developed using a normalized method. The validity is verified through the simulations and the experiments on a 500 W, 110 V/50 Hz prototype, while the grid inductance varies from 0.15 mH to 5 mH.
OriginalsprogEngelsk
TitelProceedings of the IEEE Energy Conversion Congress and Exposition, ECCE 2013
Antal sider8
ForlagIEEE Press
Publikationsdato2013
Sider456-463
ISBN (Trykt)978-1-4799-0336-8
ISBN (Elektronisk)978-147990335-1
DOI
StatusUdgivet - 2013
Begivenhed5th IEEE Energy Conversion Congress & Expo, ECCE 2013 - Denver, Colorado, USA
Varighed: 15 sep. 201319 sep. 2013

Konference

Konference5th IEEE Energy Conversion Congress & Expo, ECCE 2013
LandUSA
ByDenver, Colorado
Periode15/09/201319/09/2013

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