航空发动机鲁棒容错控制  

Design of Aeroengine Robust Tolerant Control

作　　者：钟谦[1] 王镛根[1] 

机构地区：[1]西北工业大学

出　　处：《西北工业大学学报》1997年第3期413-417,共5页Journal of Northwestern Polytechnical University

摘　　要：针对目前航空发动机数字控制中急需解决的可靠性问题，根据完整性综合性设计思想，提出了一种对模型不确定性具有鲁棒性的容错控制系统的设计方法，并结合传感器的软、硬故障进行仿真，结果表明该控制系统在正常状态和故障状态都能实施良好的工作，具有控制、诊断和容错综合能力，且对模型不确定性具有良好的鲁棒性。We researched the theory and design of multivariable fault tolerant control system with integrated control/diagnostic ability. We designed a BIBO (Boundary Input and Boundary Output) controller by using the LQG/LTR (Linear Quadratic Gaussian with Loop Transfer Recovery) method. We detected and isolated sensor failures with Kalman filtering residual and WSSR (Weighted Sun Squared Residual). We designed a fault tolerant controller with output reconstruction method and analyzed the effect of model uncertainty on stability and performance. Model uncertainty includes the parameter uncertainties of the dynamical system, of the actuators, and of the disturbances. Simulation results show that the designed system is robust against model uncertainty.

关 键 词：容错控制 模型不确定性 航空发动机 鲁棒控制 

分 类 号：V233.7[航空宇航科学与技术—航空宇航推进理论与工程]