刘向向;李新宇;王奔;邓大磊;

• 1:西南交通大学电气工程学院
• 2:廊坊职业技术学院电气工程系

摘要(Abstract)：

根据直驱永磁同步风力发电机的结构特点,采用双脉宽调制变流器作为其并网主电路。考虑到永磁同步发电机的数学模型在dq坐标系下是一个非线性耦合系统,不利于控制器的设计。提出了采用逆系统方法将原系统进行线性化解耦,构造出其伪线性系统模型,再运用变结构控制理论设计伪线性系统的闭环控制器。建立了基于此控制策略的仿真模型并与PI控制进行比较。仿真结果表明,该控制策略可实现发电机输出有功功率的准确控制、并网有功功率和无功功率独立调节以及变速恒频运行。变结构控制与PI控制相比,动态响应速度快、鲁棒性好。

关键词(KeyWords)： 风力发电;直驱永磁同步发电机;逆系统方法;变结构控制;比例-积分控制;功率控制

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘向向;李新宇;王奔;邓大磊;

Email:

DOI: 10.13335/j.1000-3673.pst.2013.02.039

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