Analysis of LVRT Influence on the Neighboring Wind Farm and a New Protection Scheme for DFIG

Abstract:

Low voltage ride-through (LVRT) capability has become more important to the doubly-fed induction generator (DFIG) as the penetration of wind power increases. This paper analyses the LVRT influence on the neighboring wind farm, mainly considering the crowbar action during a fault. On the basis, a new protection scheme for the DFIG is proposed to prevent the negative influence, primarily based on a rotor series resistor and a reactive power compensation device. And the adaptive control strategy is presented. Through the simulation, characteristics of DFIG in the neighboring wind farm with and without the protection scheme are compared. The results show that the cascading crowbar action can be avoided by the protection scheme and it is advantageous for grid voltage restoration.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 2250-2253
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.2250
• Online since: February 2013
• Authors: Hui Lan Jiang, Man Zhang
• Keywords: Crowbar, Double Fed Induction Generation (DFIG), LVRT Influence, Neighboring Wind Farm, Protection Scheme

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