王中;李国杰;孙元章;黄晓辉;

• 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)
• 2:南京高传机电自动控制设备有限公司

摘要(Abstract)：

控制系统的稳定性对于风力发电系统的可靠运行至关重要,矢量控制是双馈风力发电系统中最常用的控制策略之一,双馈电机的矢量控制需要精确的转子位置信号来进行坐标变换,这一信号通常通过增量式光电编码器来获取。由于风力发电系统的运行环境比较恶劣,编码器的脉冲信号特别是Z脉冲容易受到干扰,进而导致转子测量角度的偏差。文章采用特征值分析的方法,详细分析了转子角度偏差对系统稳定性造成的影响,并对1.5 MW双馈风力发电系统进行了仿真和试验,结果表明,转子角度偏差可能导致系统不稳定等严重后果。

关键词(KeyWords)： 双馈电机;编码器;角度偏差;稳定性;风力发电

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 王中;李国杰;孙元章;黄晓辉;

Email:

DOI: 10.13335/j.1000-3673.pst.2010.12.023

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