永磁同步电动机的速度自适应反推控制

The auto-adapted backstepping control of the speed of permanent magnet synchronous motor

针对高精度的伺服系统,考虑永磁同步电动机实际运行过程中,电机的定子电阻、黏滞摩擦因数及负载转矩的变化必然影响到系统的伺服精度,提出了自适应与反推控制相结合的控制策略,通过推导,它不但能够实现永磁同步电动机系统的完全解耦,并且能够有效地抑制系统参数变化对系统速度跟踪伺服性能的影响,使系统具有很强的鲁棒性.通过仿真,验证了自适应反推控制策略的有效性和可行性.

In view of the high accurate servosystem, the change of the stator resistance, the sluggish friction parameter and the load moment affects inevitably the precision of the system servo in the actual movement process of PMSM （ Permanent Magne backstepping control was p t Synchronous Motor）. Therefore, a control strategy which unifies auto-adapted with ,roposed. Through the inferential reasoning, it not only can realize the complete decoupling of PMSM system, but also can effectively suppress the influence of the system parameter change on the system velocity tracking servo performance to make the system very strong robustness. Through the simulation, the validity and the feasibility of the control strategy which unifies auto-adapted with backstepping control was confirmed.