适用于系统次同步振荡分析的风电场等值建模方法综述
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TM74

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江苏省自然科学基金资助项目(BK20210057)


Small-signal equivalent modeling methods of the wind farm and its application in sub-synchronous oscillations analysis of gird-connected wind power systems
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    摘要:

    近年来,风电并网系统次同步振荡事故在全球多地均有报道发生,严重威胁了电力系统安全稳定运行。由于风电机组单机容量较小,一个风电场内通常具有数十台甚至数百台风电机组,造成风电场模型阶数高,风电机组之间耦合复杂,合理有效地对风电场进行等值建模,是研究风电并网系统振荡机理、特性与抑制的基础。文中在现阶段对风电接入引发电力系统次同步振荡原因认识的基础上,分析了现有较为成熟的风电场动态等值方法用于风电并网系统振荡稳定性分析的优势与不足,总结了现有风电场动态等值研究成果中的遗留问题,以期为未来针对风电汇集系统小干扰等值与风电并网系统次同步振荡展开进一步研究提供参考和借鉴。

    Abstract:

    In recent years, sub-synchronous oscillation incidents have been reported to happen globally, which seriously threatens the safe and stable operation of the power system. As the capacity of a single wind turbine generator is small, a wind farm with tens even hundreds of wind turbine generators makes the order of the model of the wind farm high with the wind turbine generators complex coupled with each other. Reasonable and effective equivalent modeling of the wind farm is the basis for the study on the reasons, characteristics and suppression of the oscillations in the wind power integrated power system. In this paper, the advantages and disadvantages of the existing relatively thorough methods for wind farm equivalent modeling is analyzed based on the recognition of the reasons for the sub-synchronous oscillations in the wind power integrated power system. Then the issues in the field of equivalent modeling of the wind farm that need to be further studied are summarized, hoping to provide references for the future study of small-signal dynamic equivalence of a wind power collecting system and sub-synchronous oscillations of the wind power integrated power system.

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董文凯,任必兴,王海风,王洋.适用于系统次同步振荡分析的风电场等值建模方法综述[J].电力工程技术,2022,41(4):33-43

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  • 收稿日期:2022-02-19
  • 最后修改日期:2022-05-23
  • 录用日期:2021-11-29
  • 在线发布日期: 2022-07-20
  • 出版日期: 2022-07-28