Impacts of Digital Filters on Admittance Dissipativity of Sequence Current Control for VSCs

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Abstrakt

This paper analyzes the impacts of digital filters on the admittance dissipativity of dual-sequence current control for grid-connected voltage-source converters (VSCs). The output admittance model of VSC is first derived in the aß-frame with complex vectors, and then the frequency-domain dissipativity theory is employed to analyze the dynamic impacts of digital filters, revealing that the cascaded use of sequence-decomposition filter (SDF) and low-pass filter (LPF) in the voltage-feedforward (VFF) tends to induce a nondissipative region. Then, an analytical design method for the LPF is developed for mitigating the non-dissipative region. Lastly, the simulation and experimentresults verify the accuracy of the theoretical analysis.
OriginalsprogEngelsk
Titel2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020
ForlagIEEE
Publikationsdatonov. 2020
Sider1-7
Artikelnummer9265667
ISBN (Elektronisk)9781728171609
DOI
StatusUdgivet - nov. 2020
Begivenhed21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 - Aalborg, Danmark
Varighed: 9 nov. 202012 nov. 2020

Konference

Konference21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020
Land/OmrådeDanmark
ByAalborg
Periode09/11/202012/11/2020
NavnIEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN1093-5142

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