基于模糊控制的滑模控制器的研究

Study of Variable Structure Slide Controller Based on Theory of Fuzzy Control

滑模控制具有鲁棒性好、性能稳定的特点 ,但普遍存在震颤现象 .在实际项目开发的工程背景中 ,通过对滑模控制系统进行模糊分析与原理性设计 ,使得模糊控制与滑模控制相结合 ,从而实现了对交流伺服系统的有效控制 .滑模控制用于减少控制误差 ,而模糊控制则用于消除震颤 .仿真结果表明该方案在交流伺服系统中提高了控制系统的精度和鲁棒性 。

Variable structure slide control(VSSC) has strong robustness and stable capability,but produces a little quivering.In the background of project developing,the new control scheme is designed in order to control effectively alternating current(AC) vector control servo system by the analysis and designing of fuzzy control,and then successfully combines fuzzy control with variable structure slide control.VSSC is to reduce control error,and fuzzy control(FC) is to remove output quivering.In the AC servo system,simulation shows that the system possesses high accuracy and strong robustness,and develops the capability wonderfully.