考虑参数和负载不确定性的内置式永磁同步电机自适应反步控制

提出一种??_?? = 0 的内置式永磁同步电机的自适应反步控制方法. 通过定义虚拟控制变量和选择适当的Lyapunov 函数, 导出系统控制律及参数自适应律. 该方法能够根据自适应参数估计器实时估计出的负载转矩和定子电阻对控制输出进行动态校正, 从而提高转速控制精度和系统的抗扰能力. 仿真结果表明, 系统能够快速跟踪参考转速, 并对负载扰动和参数变化具有较强的鲁棒性.

Adaptive backstepping control of interior permanent magnet synchronous motors considering parameter and load uncertainties

An adaptive backstepping control method of interior permanent magnet synchronous motors(IPMSM) with ??_?? = 0 is proposed. By defining the virtual control variables and selecting the proper Lyapunov functions, the control law and parameter adaptation law are derived. The proposed method is able to regulate the control outputs dynamically, according to the stator resistance and load torque estimated by the adaptive parameter estimator in real time. So the accuracy of speed control and the ability of disturbance rejection are improved significantly. Simulation results show that the driving system can quickly track the speed reference and is robust against the parameter variations and load disturbances.