Dedeoglu, S. orcid.org/0000-0001-7969-011X, Konstantopoulos, G.C. and Komurcugil, H. (2021) Current-limiting VSG for renewable energy applications. In: Proceedings of 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE). 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE), 20-23 Jun 2021, Virtual conference (Kyoto, Japan). Institute of Electrical and Electronics Engineers ISBN 9781728190242
Abstract
In this paper, an improved nonlinear controller structure, which inherits both virtual inertia (VI) and current-limiting properties in grid-connected voltage-source converters (VSCs), is proposed. The proposed method inherits the V dc ~ ω droop control for inertia emulation and frequency control, and Q ~ V droop control for AC voltage support. The current-limiting property, which is a critical issue for the protection of grid interface inverters throughout the whole operation including the grid faults is proven analytically for VI-based VSCs using nonlinear control theory. Furthermore, small-signal stability of the system is examined considering the effects of different controller gains in order to provide guidance for the selection of their values. To validate both the small-signal stability and nonlinear current limitation proof, extensive Matlab/Simulink simulations are performed.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | Nonlinear droop control; virtual synchronous control; current-limiting property; DC-link voltage control; voltage-source converter; stability analysis |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Automatic Control and Systems Engineering (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Science Research Council EP/S001107/1; EP/S031863/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 09 Jun 2021 11:00 |
Last Modified: | 13 Nov 2022 01:13 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers |
Refereed: | Yes |
Identification Number: | 10.1109/ISIE45552.2021.9576298 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:174982 |