基于无速度传感器直驱风力发电控制研究

Study on Direct-drive Wind Power Generation Control System without Speed Sensor

分析了直驱风力发电控制技术中所采用的传统定子磁链观测法和纯积分器观测法存在的问题。在此基础上,提出了基于坐标变换的饱和反馈积分器观测技术,克服了传统定子磁链观测技术的诸多缺点和不利。最后,进行仿真验证,利用Matlab软件搭建了相应的仿真模型,对所采用的基于磁链观测器的无速度传感器观测技术进行了验证,证明了所提方法的可行性和有效性。

Direct drive wind power generation system has become a hot research field of wind power generation technology for its good reliability,high efficiency conversion ability and so on. This paper analyzes the disadvantages of traditional stator flux observation method adopted in the direct drive wind power generation. On the basis,integrators with saturation-fed based on axis transformation is put forward,which overcomes many disadvantages and unfavorable of the traditional stator flux observation technology. Finally,the simulation model is established by Matlab / Simulink software and the results of simulation shows that the proposed method is feasible and effective.