Abstract
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.
| Original language | English |
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| Title of host publication | 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020 |
| Publisher | IEEE |
| Publication date | Nov 2020 |
| Pages | 1-7 |
| Article number | 9265667 |
| ISBN (Electronic) | 9781728171609 |
| DOIs | |
| Publication status | Published - Nov 2020 |
| Event | 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 - Aalborg, Denmark Duration: 9 Nov 2020 → 12 Nov 2020 |
Conference
| Conference | 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 |
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| Country/Territory | Denmark |
| City | Aalborg |
| Period | 09/11/2020 → 12/11/2020 |
| Series | IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) |
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| ISSN | 1093-5142 |
Bibliographical note
Publisher Copyright:© 2020 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
Keywords
- Digital filter
- dissipativity
- sequence control
- voltage feed-forward