石一辉;鲁宗相;闵勇;乔颖;陈惠粉;

• 1:电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系)

摘要(Abstract)：

大规模变速风电机组并网运行引起的风电场安全问题应给予更多关注。以变速风力机整体为研究对象,分析了风力机稳定性与运行状态、控制策略、发电功率以及风速的关系。针对定功率控制过程中出现的失稳现象,建立了定功率控制过程中的小信号模型,通过研究平衡点的稳定性,近似给出了风力机的稳定运行边界。从物理概念分析了平衡点的稳定性,阐述了桨距角和风速变化引起的风力机失稳过程,并提出了风力机稳定性的判别方法。

关键词(KeyWords)： 变速风力机;定功率控制;近似稳定边界;临界转速

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51077078);; 电力系统国家重点实验室专项资金项目(SKLD09M08)~~

作者(Author): 石一辉;鲁宗相;闵勇;乔颖;陈惠粉;

Email:

DOI: 10.13335/j.1000-3673.pst.2011.05.008

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