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研究了基于网络控制的航空器时变时滞横向动力学系统的容错控制问题。利用Lyapunov稳定性方法和LMI技术,综合网络的特点采用鲁棒完整性方法设计了针对执行器失效的容错控制器。首先给出了航空器横向动力学系统的时滞线性化一般模型,考虑到网络控制系统的运行特点以及网络中的诱导时延和数据包丢失现象,采用一种分段常值的控制器,设计了使系统对执行器失效故障具有容错性能的控制器。进行了仿真研究,仿真结果说明容错控制器作用下当出现执行器故障时系统仍可保持较好的性能,验证了提出的设计方法的有效性。
The problem of fault-tolerant control of transverse dynamic system with time-varying delays based on networked control is studied. Based on the Lyapunov stability method and LMI technique, the robust integrity method is used to design a fault tolerant controller for actuator failure based on the characteristics of the network. First of all, a general model of delay linearization of aircraft lateral dynamics system is given. Considering the operation characteristics of network control system and the induced delay and packet loss in the network, a piecewise constant controller is used to design A controller that makes the system fault tolerant to actuator failures. The simulation results show that the system can still maintain good performance when actuator failure occurs under the fault-tolerant controller, and the validity of the proposed design method is verified.