Stable operation of doubly-fed induction generator in weak grids

Date

2015-09-30

Author

Cai, L.J.
Erlich, I.
Karaağaç, Ulaş
Mahseredjian, J.

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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With the increasing integration of doubly-fed induction generator (DFIG) based large wind farms, their impact on power system static and dynamic behavior is an issue of interest. Large wind farms are usually connected to grids using relatively long transmission lines or cables (weak grids). Therefore, the wind farm stable operation in weak grids must be researched. This paper proposes an adaptive DFIG line side converter (LSC) control, for stable operation of wind turbines connected to weak grids. Furthermore, as weak grids with relatively long transmission lines experience severe temporary overvoltages due to Ferranti effect, an overvoltage ride through (OVRT) strategy for the DFIG based wind farm is also proposed. The Senvion wind turbine control strategy is applied to demonstrate the workability of the proposed approaches.

Subject Keywords

adaptive control, Doubly-fed induction generator (DFIG), EMTP-RV, Ferranti effect, overvoltage ride through (OVRT), system stability, weak grid

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84956861493&origin=inward
https://hdl.handle.net/11511/114856

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Department of Electrical and Electronics Engineering, Conference / Seminar