非线性不确定系统的鲁棒虚拟传感器重组的设计

Virtual sensor design of the nonlinear uncertain systems robust reconfiguration

主要将非线性滑模观测器和虚拟传感器重组方法相结合,设计了具有鲁棒性的滑模观测器。把线性系统虚拟传感器重组方法推广到非线性,并针对传感器故障设计合适的滑模观测器,使改变后的系统能够等价于原来的非线性不确定系统。数字仿真证明了该方法的有效性,重组后的系统输出可以很好地跟踪正常工作系统输出。

Combined nonlinear sliding mode observer and the virtual sensor,is reached in the paper reconfiguration of a class of nonlinear uncertain systems.For sensor fault,the virtual sensor linear reconfiguration method is applied to nonlinear system.By designing appropriate sliding mode observer,it ensures that the post-reconfiguration system is still equivalent to the original system.The simulation results show that the effectiveness of the method and the post-reconfiguration system output can be a very good system to track the normal work output.