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http://hdl.handle.net/10397/88759
Title: | Robust subsynchronous interaction damping controller for DFIG-based wind farms | Authors: | Ghafouri, M Karaagac, U Karimi, H Mahseredjian, J |
Issue Date: | Nov-2019 | Source: | Journal of modern power systems and clean energy, Nov. 2019, , v. 7, no. 6, p. 1663-1674 | Abstract: | This paper proposes a robust controller to improve power system stability and mitigate subsynchronous interaction (SSI) between doubly-fed induction generator (DFIG)-based wind farms and series compensated transmission lines. A robust stability analysis is first carried out to show the impact of uncertainties on the SSI phenomenon. The uncertainties are mainly due to the changes in the power system impedance (e.g., transmission line outages) and the variations of wind farm operating conditions. Then, using the mu -synthesis technique, a robust SSI damping controller is designed and augmented to the DFIG control system to effectively damp the SSI oscillations. The output signals of the supplementary controller are dynamically limited to avoid saturating the converters and to provide DFIG with the desired fault-ride-through (FRT) operation during power system faults. The proposed controller is designed for a realistic test system with multiple series capacitor compensated lines. The frequency of the unstable SSI mode varies over a wide range due to the changes in power system topologies and wind farm operating conditions. The performance of the proposed controller is verified through electromagnetic transient (EMT) simulations using a detailed wind farm model. Simulation results also confirm the grid compliant operation of the DFIG. | Keywords: | Doubly-fed induction generator (DFIG) Subsynchronous interaction (SSI) Mu-synthesis Robust control Series capacitor compensation |
Publisher: | Springer | Journal: | Journal of modern power systems and clean energy | ISSN: | 2196-5625 | EISSN: | 2196-5420 | DOI: | 10.1007/s40565-019-0545-2 | Rights: | Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The following publication GHAFOURI, M., KARAAGAC, U., KARIMI, H. et al. Robust subsynchronous interaction damping controller for DFIG-based wind farms. J. Mod. Power Syst. Clean Energy 7, 1663–1674 (2019) is available at https://dx.doi.org/10.1007/s40565-019-0545-2 |
Appears in Collections: | Journal/Magazine Article |
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Ghafouri_Subsynchronous_Damping_DFIG-Based.pdf | 5.17 MB | Adobe PDF | View/Open |
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