变速恒频双馈风力发电机的矢量控制研究

Vector Control in the VSCF Double-fed Wind Generators

由于DFIG(双馈发电机)是高阶多变量,强耦合,非线性的机电系统,传统的控制方法无论是在控制精度上还是在动态性能上,远不能达到要求,为了实现DFIG的高性能控制,应采用磁场定向的矢量变换控制技术。借鉴矢量变换技术对于一般交流电机的控制,把它用于对DFIG的控制,通过建立Matlab/Simulink模型和仿真,证明矢量控制对DFIG良好的控制性。

As DFIG （double-fed generators） are highend multi-variable, strong coupling, non-linear electro-mechanical systems in which the traditional control method could not meet with the requirement both in field of control accuracy and dynamic performance. In order to achieve the high-performance control of DFIG, Should the field-oriented transformation of vector control technology be employed. With the reference of vector transform from the general exchange of motor control, it was used to the DFIG control. Through the establishment of Matlab/Simulink model and simulation, it was proved that the vector control contributed good performance to DFIG control.