Flicker mitigation by reactive power control in wind farm with doubly fed induction generators

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• 作者：Francesc Girbau-Llistuella ; Andreas Sumper ; Francisco D铆az-Gonz谩lez ; Samuel Galceran-Arellano
• 关键词：Doubly fed induction generator ; Flicker ; Mitigation by reactive power ; Variable speed wind turbine ; Distributed generation ; Smoothing the fast voltage variations
• 刊名：International Journal of Electrical Power and Energy Systems
• 出版年：February, 2014
• 年：2014
• 卷：55
• 期：Complete
• 页码：285-296
• 全文大小：3174 K

文摘

This paper presents a novel wind farm control with the purpose to mitigate the flicker emission of doubly fed induction generators. The presented control strategy is implemented in a wind farm connected to a distribution grid with consumers. The control system is composed by two controllers in cascade, the wind farm control and the local wind turbine controller. The wind farm control adapts itself to the consumptions of the distribution network and generates the minimal reactive power which allows smoothing the fast variations of wind power output. In this sense, the wind farm control facilitates the integration of wind farm into weak power grids by exchanging reactive power with network. Moreover, the wind farm controller has to be stable, fast and robust and the wind farm dispatch function has to guarantees that the local wind turbine controller can exchange the reactive power set point with network. This controller has been developed with the simulation tool DigSilent PowerFactory v14.1.