摘要
研究了滑模控制中趋近律的问题,提出了一类趋近律的改进方法。结合准滑动模态法与趋近律法,在改进了的具有变压缩系数的结合趋近律的基础上引入了"边界层"的概念,此控制策略在"边界层"外采用趋近切换控制,在"边界层"内采用线性化反馈控。实例仿真表明,改进后的趋近律法可以有效地消除抖振从而保证控制质量。
An improvement of the reaching law for the sliding mode control systems was studied. A new method that combines the quasi-sliding mode control method with the reaching law was proposed. The reaching law was improved by introducing the concept of the boundary layer. Outside which switching control between the exponential reaching law and the variable rate reaching law is applied and inside which （eed-back control is applied. The simulation results confirm that the proposed method effectively eliminates chattering and ensures the quality of control system.
出处
《鞍山科技大学学报》
2007年第4期410-413,418,共5页
Journal of Anshan University of Science and Technology
关键词
滑模控制
趋近律
准滑动模态
抖振
sliding mode control
reaching law
quasi-sliding mode control
chattering
