开绕组无刷双馈发电机直接功率自抗扰控制策略

Direct Power Active Disturbance Rejection Control Strategy for Open Winding Brushless Doubly-Fed Generator

根据开绕组无刷双馈电机在同步旋转坐标系中的数学模型,推导和分析了功率绕组输出瞬间功率和控制绕组功率电压之间的关系,并建立对应状态方程。设计无刷双馈电机直接功率自抗扰控制器,实现了有功功率和无功功率的解耦控制。搭建了开绕组无刷双馈发电机直接功率自抗扰控制系统的仿真模型,给出了系统暂态、稳态及参数扰动等不同工况下的仿真结果,仿真结果验证了该新型控制策略的可行性和有效性。

According to the mathematical model of the open winding brushless doubly fed generators in the synchronous rotating coordinate system,the relationship between the instantance power of the power winding and the voltage of the control winding were derived and analyzed.The direct power state equation was then obtained.The direct power active disturbance rejection control was designed to realize the decoupling control of active power and reactive power.The simulation results under different working conditions such as system transient,steady state and parameter disturbance were given,which the results showed that the new control method is correct and effective.