An Enhanced Droop Control Scheme for Resilient Active Power Sharing in Paralleled Two-Stage PV Inverter Systems

Hongpeng Liu, Yongheng Yang, Xiongfei Wang, Poh Chiang Loh, Frede Blaabjerg, Wei Wang, Dianguo Xu

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

3 Citationer (Scopus)

Abstrakt

Traditional droop-controlled systems assume that the generators are able to provide sufficient power as required. This is however not always true, especially in renewable systems, where the energy sources (e.g., photovoltaic source) may not be able to provide enough power (or even loss of power generation) due to the intermittency. In that case, unbalance in active power generation may occur among the paralleled systems. Additionally, most droop-controlled systems have been assumed to be a single dc-ac inverter with a fixed dc input source. The dc-dc converter as the front-end of a two-stage photovoltaic (PV) system has not been considered. In this paper, an enhanced droop scheme is thus proposed to address those issues, and the proposed scheme can enable resilient active power sharing in parallel two-stage PV inverter systems. Furthermore, a small-signal analysis for the proposed droop control strategy is carried out. Experiments have verified the effectiveness of the proposed droop control scheme.
OriginalsprogEngelsk
TitelProceedings of the 31st Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
Antal sider8
ForlagIEEE
Publikationsdatomar. 2016
Sider1253-1260
ISBN (Trykt)978-1-4673-8394-3, 978-1-4673-8393-6, 978-1-4673-9551-9
ISBN (Elektronisk)978-1-4673-9550-2
DOI
StatusUdgivet - mar. 2016
Begivenhed31st Annual IEEE Applied Power Electronics Conference and Exposition - Long Beach Convention Center, Long Beach, USA
Varighed: 20 mar. 201625 mar. 2016
http://www.apec-conf.org

Konference

Konference31st Annual IEEE Applied Power Electronics Conference and Exposition
LokationLong Beach Convention Center
LandUSA
ByLong Beach
Periode20/03/201625/03/2016
Internetadresse

Fingeraftryk Dyk ned i forskningsemnerne om 'An Enhanced Droop Control Scheme for Resilient Active Power Sharing in Paralleled Two-Stage PV Inverter Systems'. Sammen danner de et unikt fingeraftryk.

Citationsformater