具有不确定参数永磁同步电动机的自适应反步控制

针对永磁同步电动机系统的非线性耦合特性以及参数的不确定性，采用自适应反步控制实现永磁同步电动机的非线性控制，在补偿参数不确定性影响，提高系统的抗干扰能力的同时，实现了永磁同步电动机的高性能全局渐近稳定速度跟踪控制．采用二阶滤波环节平滑速度指令，实现了理想无超调的快速速度跟踪控制．仿真结果证明了所提出方法的有效性．

Adaptive Backstepping Control of Permanent Magnet Synchronous Motors with Parameter Uncertainties

A nonlinear adaptive speed controller based on adaptive backstepping approach for permanent magnet synchronous motors with nonlinear coupling and parameter uncertainties is presented. With the preposed controller, the parameter uncertainties are compensated and high performance speed controller for permanent magnet synchronous motors is shown to be globally asymptotically stable. The scheme is robust to the parameter uncertainties and load torque disturbance. A second order filter is used to smooth the speed reference signal, and the perfect non-overshooting speed tracking is achieved. Simulation results show the validity of the proposed approach.