航空发动机被动容错控制系统鲁棒性设计

针对航空发动机发生故障时系统的容错能力问题，设计了基于特征结构配置方法的容错控制系统。首先分析了被动容错控制的特点和优点，然后采用特征结构配置的方法，在配置系统极点的同时，还配置系统的特征向量，并对系统进行重新调节以获得整个系统在故障发生后的稳定性与可靠性，给出了特征结构配置方法的具体设计步骤。最后，针对某型航空发动机的设计工况点模拟系统发生故障，即参数发生摄动时，对所设计的容错系统鲁棒性进行了分析计算。仿真算例结果表明，所设计的容错系统具有较好的抗干扰能力，即较好的鲁棒性。

Robustness Design of Passive Fault Tolerant Control System for Aero Engine

The eigenstructure assignment method of fault tolerant control system is designed aimed at aeroengine fault tolerant ability.First,the characteristics and advantages of the passive fault tolerant control are analyzed.And then using eigenstructure assignment method,the system poles are configured,at the same time,the eigenvectors of the system are also configured.The system is adjusted to obtain the stability and reliability of whole system after the fault,and the specific design steps of eigenstructure assignment method are given.Finally,in view of an aero engine operating point for design simulation system failure,namely the parameter perturbation,the designed robustness of the fault tolerant system is analyzed and calculated.Simulation results show that the designed fault tolerant system has a good anti jamming ability,namely good robustness.