栗然;卢云;刘会兰;韩彪;

• 1:新能源电力系统国家重点实验室(华北电力大学)

摘要(Abstract)：

双馈风力发电机通过串联补偿线路外送风电时,会出现由感应发电机效应(induction generator effect,IGE)和次同步控制相互作用(sub-synchronous control interaction,SSCI)引起的次同步振荡问题。为分析该问题,以给其抑制措施提供依据,建立了用于次同步振荡分析的双馈风力发电机模型,采用频率扫描法分析了IGE的机理和影响因素,从转子侧电流环的闭环控制角度推导分析了SSCI的机理和影响因素,并采用时域仿真法分别分析和验证了风速、串补度对IGE的影响及转子侧电流环控制参数对SSCI特性的影响。研究结果表明:串补度的增加和风速的减小会引起IGE;电流环控制器比例系数和积分系数的增大会引起SSCI。

关键词(KeyWords)： 双馈风力发电机;次同步振荡;感应发电机效应;次同步控制相互作用

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 栗然;卢云;刘会兰;韩彪;

Email:

DOI: 10.13335/j.1000-3673.pst.2013.11.018

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