In this paper,we focus on the solution for doubly-fed induction generator(DFIG) based wind farm to achieve the control objective in the second period of asymmetrical grid faults ride-through,which is to support the network voltage by means of additional reactive current required by the grid codes while keeping connecting to the power grid with safe operation.However,the proposed control targets cannot be always satisfied due to the converter capacity constraint of the DFIG-based wind energy conversion syste...
【基金】
国家自然科学基金资助项目(60974130,61273045,61104046)~~
【更新日期】
2013-08-05
【分类号】
TM614;TM76
【正文快照】
0引言近年来，双馈式(doubly-fed induction generator，DFIG)风电机组(wind energy conversion system，WECS)因其具有所需变流器容量仅占系统容量25%~30%的优点，得到了广泛应用[1]。然而，其抗电网扰动性能较差，电网电压的跌落很容易损坏转子侧变流器(rotor side converter
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