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针对一类线性时滞系统且存在外部噪声干扰和参数不确定性问题,提出一种基于回路传输恢复(LTR)观测器的滑模变结构控制方法.为了简化时滞变结构控制器的设计,采用非奇异线性变换将输入时滞的线性系统转化为无时滞系统,并进行滑模变结构控制器的设计、理论分析及稳定性证明.仿真结果表明,该方法对时滞系统在噪声干扰和过程参数不确定性时系统状态快速达到稳态,得到的控制效果仍具有较好的稳定性.
For a class of linear time-delay systems with external noise interference and parametric uncertainty, a sliding mode variable structure control method based on loop-based transmission recovery (LTR) observer is proposed.In order to simplify the design of variable-structure controller with time- The non-singular linear transformation is used to transform the linear system with input delay into a non-delay system, and the design, theoretical analysis and stability of the sliding mode variable structure controller are verified. The simulation results show that the proposed method can effectively reduce the noise disturbance And the process parameters are uncertain, the system state reaches the steady state rapidly, and the obtained control effect still has good stability.