基于SERCOS实现的风轮输出特性模拟闭环控制

SERCOS-based closed loop control of simulating wind turbine output characteristics

为了在不具备风场环境的实验条件下研究风力发电技术,实现风轮输出特性模拟实验,设计了基于SERCOS接口实现的风轮输出特性模拟闭环控制系统,提出随机风速和风轮转矩输出模型,并采用无速度传感器矢量控制方法控制感应电动机,用其输出转矩来模拟风轮的输出特性.实验结果表明,该模拟系统具有良好的动态实时性及实用性.在实验室可以建立风轮特性模拟闭环控制系统而且取得满意的控制效果.

In order to study wind power technology and simulate wind turbine output characteristics under the experimental condition without real wind field, a SERCOS-based closed-loop control system was designed. A mathematical model for wind speed and torque output was proposed. The induction motor was controlled by speedless sensor vector control method. The output characteristics of the wind turbine were simulated through output torgue. The experimental results show that the simulation system has good dynamic characteristics and practicability. The proposed closed-loop control system of wind turbine characteristics can be established in laboratory, and the satisfied control effect can be achieved.