降阶负载转矩观测器与电机调速

Reduced load torque observer and motor speed regulation

主要针对永磁同步电机矢量控制系统中由于负载的扰动对电机调速的影响,设计了一种负载转矩降阶观测器,通过实现对电流的前馈补偿抑制负载扰动产生的电机转速的波动,通过反馈加前馈的补偿策略实现电机的稳定运行,提高控制系统的鲁棒性。通过MATLAB实验仿真结果表明,该设计的负载转矩降阶观测器,能够有效地调节系统对速度的跟随性,体现了良好的抗负载扰动能力。

In this paper,aiming at the influence of the disturbance of the load on the motor speed control in the permanent magnet synchronous motor vector control system,a kind of reduced load torque observer was designed.In order to suppressing the fluctuation of motor speed by the load disturbance,we take measures of current feedforword compensation.We can achieve the stable operation of the motor and improve the robustness of the control system through feedback and feedforward compensation strategy.The Matlab simulation experments show that this method can obtain can effectively adjust the system to follow the speed and anti-load disturbance capability.