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发表于 2012-5-23 21:13:55 | 显示全部楼层 |阅读模式

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标题:	Analytical Study of Grid-Fault Response of Wind Turbine Doubly Fed Induction Generator
作者:	Graham Pannell, David J. Atkinson, and Bashar Zahawi, Senior Member, IEEE
所属专业方向:	风力发电
摘要:	Abstract—Grid-connected wind turbine doubly fed induction generators (DFIGs) are sensitive to dips in supply voltage, so-called “grid faults”. Fault ride through systems must be designed to man-age the large and potentially dangerous fault currents in both sta-tor and rotor circuits. However, DFIG fault response has been only partially or summarily treated in contemporary literature. This paper presents a detailed analytical analysis of wind turbine DFIG grid-fault response. The physical behavior of the machine is pre-sented through a description of the flux-linkage response and later developed with analytical solutions of the generalized DFIG ma-chine equations operating under fault conditions showing that the frequencies of the decay components of current deviate from pure dc and rotor speed due to magnetic drag effects. The analysis is experimentally verified and evaluated using a 7.5-kW test facility.
关键字:	Doubly fed induction generator (DFIG), fault ride through, grid-fault response, induction generators, power conver-sion, wind power generation.
来源:	IEEE下载