基于控制分配的多操纵面战机故障容错控制

Fault tolerant control based on control allocation for fighter with multiple effectors

针对一类含有未知执行器故障的飞行控制系统,提出了一种基于自适应控制分配的容错控制方法。该方法充分利用了多操纵面战斗机的冗余特性,通过在线自适应调整控制分配矩阵,解决了未知故障情形下的容错控制问题,且无需调整基本控制律。分配矩阵的调整规则由李亚普诺夫(Lyapunov)稳定性方法获得。通过一个多操纵面战斗机ADMIRE模型的仿真,验证了该方法的有效性。

For a class of systems with unknown actuator faults,a new fault tolerant control method based on adaptive control allocation is presented.The control allocation matrix is adjusted on-line employing the control redundancy features of multiple effectors fighter aircraft,and the fault tolerant control problem is solved without changing the base control law.The parameter updated laws are derived according to Lyapunov stability theory.A simulation example of multiple effectors fighter model illustrates the effectiveness of the approach.