交流伺服系统的动态模糊滑模控制策略研究

Research on dynamical-fuzzy sliding mode control of AC servo system

为提高永磁同步电机(PMSM)交流伺服系统的动静态性能,提出了一种动态模糊滑模控制方法。采用"距离"减少了模糊输入维数和模糊规则,减少控制器的计算量从而加快了响应速度;并利用自适应算法改善了系统性能。仿真试验表明,该方法能明显削弱抖振,提高稳态精度,并具有动态响应速度快的特点以及较强的鲁棒性。

To improving dynamic and static performance of pemanent magnet synchronous machine（PMSM） AC servo system, a new dynamical-fuzzy sliding mode control approach was proposed. The controller was designed using ＂distance＂ method to reduce the quantity and rules of the inputing of fuzzy controller. And a new adaptive algorithm was used to improve the performance of system. The experiment proves that the AC servo system using the approach can acquire chattering free, static errorless, fast and robust response.