传感器失效的飞控系统完整性控制器设计

A Controller Design Method with Integrity for Fighter of the Sensor Failure

从提高新一代战斗机可靠性和性能出发,提出对飞控系统传感器失效具有完整性的鲁棒容错控制器设计方法。采用状态观测器理论和H∞鲁棒控制理论相结合的方法,针对已知故障设计的控制器,在传感器正常和故障两种情况下,既保证闭环系统的鲁棒稳定性,又保证了闭环系统对于外界干扰具有要求的H∞范数指标。以某型战斗机为算例,考虑俯仰角速率传感器失效和阵风干扰,进行控制器设计,仿真结果验证该方法的正确性和有效性。

The paper develops a controller design method with integrity for fighter of the sensor failure. The method is based on observer theory and H∞ control. The resulting control system provides not only the robust stability of the whole system , but also the H∞ disturbance-attenuation bound for the case where the fighter is normal, as well as the fighter of the senor failure occurs. The simulation results prove the procedure＇s validity.