Comparison of wind turbines’ ability in weak-grid connection
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Keywords:
SCR
weak grid
trip-time
wind turbine
xrr
Abstract
This paper analysis and compare the ability of three wind turbines using SCIG, DFIG, and generators with a full converter in weak grid connection. In this paper, the minimum value of short-circuit capacity ratio (SCR) of the connected grid such that the wind farms can be stable under normal and faulted-grid condition are indicated. In the case of fault on the connected grid, this paper also shows maximum interval to isolate faulted line and problems occurring on the wind farms. From this comparison, under weak grid connection, the DFIG-based wind turbine with voltage control mode should be prioritized. In wind farms using the full converter, the grid side converter should be controlled to adjust voltage. If the wind farm has to use SCIG, an STATCOM should be installed instead of a capacitor bank
References
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Published
May 31, 2017
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How to Cite
Phan Dinh Chung, Luu Ngoc An. “Comparison of Wind turbines’ Ability in Weak-Grid Connection”. The University of Danang - Journal of Science and Technology, vol. 5, no. 114.1, May 2017, pp. 17-21, https://jst-ud.vn/jst-ud/article/view/3091.
