Impedance Based Analysis of DFIG Stator Current Unbalance and Distortion Suppression Strategies

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Abstract

The control strategies of Doubly Fed Induction Generator (DFIG) system output current unbalance and distortion suppression have been well investigated in detail, with the implementation of two kinds of resonant regulators, i.e., conventional Resonance (R) regulator or Vector Proportional Integral (VPI) regulator. Nevertheless, these two resonance regulators have never been compared from the perspective of suppression capability of output current unbalance and distortion. In this paper, the impedance based analysis method is adopted to theoretically explain and compare the DFIG system impedance reshaping though the introduction of R and VPI regulator. It is pointed out that, when implemented in the DFIG system output current unbalance and distortion suppression, the VPI regulator (equivalent to the combination of virtual positive inductor and virtual positive resistor) has two advantages over R regulator (equivalent to the combination of virtual positive resistor and virtual negative inductor), i.e., better high order harmonic distortion suppression. The theoretical analysis and MATLAB simulation results have validated the correctness of this conclusion.
OriginalsprogEngelsk
TitelProceedings of the 42nd Annual Conference of IEEE Industrial Electronics Society, IECON 2016
Antal sider7
ForlagIEEE Press
Publikationsdatookt. 2016
Sider4151 - 4157
ISBN (Elektronisk)978-1-5090-3474-1
DOI
StatusUdgivet - okt. 2016
Begivenhed42nd Conference of the Industrial Electronics Society, IECON 2016: 42nd Annual Conference of the IEEE Industrial Electronics Society - Palazzo dei Congressi, Florence, Italien
Varighed: 24 okt. 201627 okt. 2016
http://www.iecon2016.org/?jjj=1471434927195
http://www.iecon2016.org/

Konference

Konference42nd Conference of the Industrial Electronics Society, IECON 2016
LokationPalazzo dei Congressi
Land/OmrådeItalien
ByFlorence
Periode24/10/201627/10/2016
SponsorIEEE Industrial Electronics Society (IES), Institute of Electrical and Electronics Engineers (IEEE)
Internetadresse

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