Sadabadi, M.S., Haddadi, A., Karimi, H. et al. (1 more author) (2017) A robust active damping control strategy for an LCL-based grid-connected DG unit. IEEE Transactions on Industrial Electronics, 64 (10). pp. 8055-8065. ISSN 0278-0046
Abstract
The connection of a distributed generation (DG) unit to a weak power system is challenging due to stability issues resulted from dynamic interactions between the DG unit and the grid. An LCL-based DG unit is a particularly challenging case due to the presence of a high resonant peak in its frequency response. This paper proposes a robust control strategy to overcome the stability issues of an LCL-based DG unit connected to a weak grid. The main advantage of the proposed control strategy is that it guarantees stability and satisfactory transient performance against the variations of grid impedance. Moreover, it is able to decouple the d and q channels of the control system, which enables independent regulation of the real and reactive output power of the DG unit. Real-time simulations and experimental tests illustrate the effectiveness of the proposed controller in terms of improved transient performance, robust stability, and satisfactory controller set-point tracking.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 IEEE. |
Keywords: | Active damping control; grid-connected microgrids; grid impedance uncertainty; LCL filters; robust current control; voltage-sourced converter |
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) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 01 Apr 2020 08:33 |
Last Modified: | 22 Sep 2021 13:12 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
Refereed: | Yes |
Identification Number: | 10.1109/tie.2017.2696501 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:158830 |
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Filename: A_Robust_Active_Damping_Control_Strategy_for_an_LC.pdf
