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H∞ mixed-sensitivity robust control design for damping low-frequency oscillations with DFIG wind power generation.
- Source :
- IET Generation, Transmission & Distribution (Wiley-Blackwell); 2019, Vol. 13 Issue 19, p4274-4286, 13p, 7 Diagrams, 5 Charts, 19 Graphs
- Publication Year :
- 2019
-
Abstract
- This study presents a H∞ mixed-sensitivity robust control design to improve the overall damping performance of lowfrequency oscillations for power systems with doubly fed induction generator-based (DFIG) wind power generation. The supplementary damping controller is designed in the linear matrix inequality framework which allows the placement of the closed-loop poles inside a pre-defined region for improved stability. The damping signal is implemented at the reactive power modulation of the rotor-side converter of the DFIG wind turbine (DFIG-WT). The damping contribution of the power oscillator damper is compared with that provided by the power system stabiliser (PSS) of the synchronous generator (SG). State-space system analysis and time-domain simulations show the capability of DFIG-WT to enhance the overall damping of the oscillatory modes even if PSSs are not installed at SG s. Also, the designed controller shows a robust performance to wind speed variations. The performance evaluation is based on the revised two-area four machines system and the revised New England 39-bus system. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17518687
- Volume :
- 13
- Issue :
- 19
- Database :
- Complementary Index
- Journal :
- IET Generation, Transmission & Distribution (Wiley-Blackwell)
- Publication Type :
- Academic Journal
- Accession number :
- 139161682
- Full Text :
- https://doi.org/10.1049/iet-gtd.2018.6433