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SSR damping in wind farms using observed-state feedback control of DFIG converters.
- Source :
-
Electric Power Systems Research . Jun2015, Vol. 123, p57-66. 10p. - Publication Year :
- 2015
-
Abstract
- This paper studies sub-synchronous resonance (SSR) in doubly-fed induction generator (DFIG)-based wind farms. The paper first briefly reviews the main types of the SSR that may occur in DFIG wind farms, namely: (1) induction generator effect (SSIGE), (2) torsional interactions (SSTI), and (3) control interactions (SSCI). It is shown that the power system is highly unstable due to the SSR mode. Therefore, a supplementary SSR damping controller (SSRDC) is designed for the grid-side converter (GSC) controller of the DFIG. The SSRDC is designed using an observer-based controller tuned through an optimal quadratic technique. Model reduction is applied to the full model of the studied power system in order to obtain a lower order model to make the SSRDC design simpler and more practical. The IEEE first benchmark model, modified to include a 100 MW DFIG-based wind farm, is employed as a case study. In this work, MATLAB/SIMULINK is used for eigenvalue analysis and PSCAD/EMTDC for time-domain simulations, respectively. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03787796
- Volume :
- 123
- Database :
- Academic Search Index
- Journal :
- Electric Power Systems Research
- Publication Type :
- Academic Journal
- Accession number :
- 101918555
- Full Text :
- https://doi.org/10.1016/j.epsr.2015.01.018