某型航空发动机容错控制仿真研究

Simulation of aeroengine fault tolerant control

利用卡尔曼滤波器的优点,提出了航空发动机容错控制模型,它的核心部分就是卡尔曼滤波器,考虑了当某一传感器发生故障后,利用一簇卡尔曼滤波器对发生故障的传感器进行诊断并隔离,并依据剩余非故障传感器的信息对自适应模型进行重构。实例仿真表明航空发动机容错控制系统可以保证航空发动机在一定的性能指标下稳定运行,达到了容错控制的目的。

The model of aetoengine fault tolerant control is designed based on Kalman filter,its core is Kalman filter,sensor fault signals are detected,islated and accommodated when one sensor is damaged or did not work normally.Simulation results illustrate that this fault tolerant control system could ensure aeroengine work continually when sensor is disabled,thus fault tolerance is achieved.