Coodinative Control of Active Power and DC-link Voltage for Cascaded Dual-Active-Bridge and Inverter in Bidirectional Applications

Yanjun Tian, Zhe Chen, Fujin Deng, Xiaofeng Sun, Yanting Hu

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3 Citationer (Scopus)

Abstract

A bidirectional interface converter is attractive for the flexible operation and control of a system consisting of a DC sub-grid and an AC sub-grid. Cascaded connection of a dual-active-bridge (DAB) with an inverter is an ideal topology for the bidirectional interface. However, due to the bidirectional power flow, and the potential different control bandwidth of the DAB and the inverter, the DC-link voltage between DAB and inverter may experience significant oscillations, which will increase the stress of the semiconductor devices and cause distortions of grid current. This paper proposes a coordinative control of active power and DC-link voltage for the bidirectional cascaded DAB and inverter. The proposed control method can effectively decrease DC-link voltage oscillation and improve the system performance. The effectiveness has been validated by both simulation and experiment results.
OriginalsprogEngelsk
TitelProceedings of the 2014 IEEE Energy Conversion Congress and Exposition (ECCE)
Antal sider8
ForlagIEEE Press
Publikationsdato2014
Sider2249- 2256
ISBN (Trykt)9781479957774
ISBN (Elektronisk)9781479956982
DOI
StatusUdgivet - 2014
Begivenhed2014 IEEE Energy Conversion Congress and Exposition (ECCE) - Pittsburgh, Pittsburgh, USA
Varighed: 14 sep. 201418 sep. 2014

Konference

Konference2014 IEEE Energy Conversion Congress and Exposition (ECCE)
LokationPittsburgh
Land/OmrådeUSA
ByPittsburgh
Periode14/09/201418/09/2014

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