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Admittance-Dissipat...
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Gong, H.Department of Energy Technology, Aalborg University, Aalborg 9220, Denmark.
(author)
Admittance-Dissipativity Analysis and Shaping of Dual-Sequence Current Control for VSCs
- Article/chapterEnglish2022
Publisher, publication year, extent ...
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Institute of Electrical and Electronics Engineers (IEEE),2022
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Numbers
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LIBRIS-ID:oai:DiVA.org:kth-307428
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-307428URI
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https://doi.org/10.1109/JESTPE.2021.3067553DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20220314
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This paper analyzes the admittance-dissipativity of dual-sequence current control for grid-connected voltage-source converters (VSCs). The output admittance model of dual-sequence current control is first developed in the stationary reference frame by using complex vectors. Impacts of digital filters used within current control and voltage-feedforward (VFF) control loops, and of the delay compensation at the fundamental frequency, are then evaluated. It is found that the cascaded use of sequence-decomposition filter (SDF) and the low-pass filter (LPF) in the VFF control loop adds a non-dissipative region in the output admittance, and the fundamental-frequency delay-compensation further worsens the dissipativity. An analytical design method for the LPF is then developed to mitigate the non-dissipative region, which lowers the instability risks and improves the stability robustness of dual-sequence current control under different grid conditions. Lastly, simulations and experimental results corroborate theoretical analyses.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Wang, X.Department of Energy Technology, Aalborg University, Aalborg 9220, Denmark.
(author)
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Harnefors, Lennart,1968-KTH,Elkraftteknik,ABB, Corporate Research(Swepub:kth)u149g11f
(author)
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Hasler, Jean PhilippeHITACHI ABB Power Grids
(author)
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Danielsson, ChristerHITACHI ABB Power Grids
(author)
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Department of Energy Technology, Aalborg University, Aalborg 9220, Denmark.Elkraftteknik
(creator_code:org_t)
Related titles
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In:IEEE Journal of Emerging and Selected Topics in Power Electronics: Institute of Electrical and Electronics Engineers (IEEE)10:1, s. 324-3352168-67772168-6785
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