Accurate PWM Model of Multi-Updated L-filtered Voltage-Source Converters

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Abstrakt

The zero-order-hold (ZOH) model has been widely used to characterize the dynamic of single-updated or double-updated pulse width modulator (PWM). However, for the multi-updated PWM, the ZOH model does not consider the potential lost-of-comparison issue, which can lead to inaccurate modeling. In this paper, the comparator behavior of multi-updated PWM is analyzed. Based on the analytical results, an accurate PWM model is proposed. An L-filtered voltage source converter (VSC) with a multi-updated PWM-based digital controller is considered, whose current control loop is modeled by using both the proposed and the ZOH model for a comparative study. The results show that the proposed model can accurately predict the stability boundary.
OriginalsprogEngelsk
TitelECCE 2020 - IEEE Energy Conversion Congress and Exposition
Antal sider7
ForlagIEEE
Publikationsdatookt. 2020
Sider6205-6211
Artikelnummer9236178
ISBN (Elektronisk)9781728158266
DOI
StatusUdgivet - okt. 2020
Begivenhed12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020 - Virtual, Detroit, USA
Varighed: 11 okt. 202015 okt. 2020

Konference

Konference12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020
LandUSA
ByVirtual, Detroit
Periode11/10/202015/10/2020
SponsorIEEE Industrial Application Society (IAS), IEEE Power Electronics Society (PELS)
NavnECCE 2020 - IEEE Energy Conversion Congress and Exposition

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