Coordinated control and operation of DFIG and FSIG based Wind Farms

S. Foster, Lie Xu, Brendan Fox
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引用次数: 22

Abstract

This paper considers a coordinated control strategy for adjacent FSIG and DFIG based wind farms whereby the reactive power output of the DFIG is prioritised over real power after a fault on the network, in order to boost the FSIG terminal voltage and improve its fault ride through capability. The issue of protection for a DFIG based wind turbine during network fault is also considered. It is seen that the large rotor currents can generally be ascribed to the small converter rating. Different protection arrangements for the converter are examined. The simulation results show that the stability margin of a FSIG can be significantly greater when there is extra reactive power compensation available from a DFIG in the vicinity.
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基于DFIG和FSIG的风电场的协调控制和运行
本文考虑了一种基于相邻FSIG和DFIG的风电场的协调控制策略,即在网络发生故障后,DFIG的无功输出优先于实功输出,以提高FSIG终端电压并提高其故障穿越能力。同时,研究了基于DFIG的风力发电机组在电网故障时的保护问题。可见,大转子电流一般可归因于小变流器额定。对变流器的不同保护装置进行了研究。仿真结果表明,当附近有DFIG提供额外的无功补偿时,FSIG的稳定裕度可以显著提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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