关系矩阵法在发动机执行机构故障检测中的应用

Failure detection of actuators of aero-engine control system by interaction matrix formulation

作为航空发动机控制系统的重要组成部分,执行机构的故障检测与隔离目前尚缺少有效方法.本文提出了一种新颖的解决问题途径,利用相互关系矩阵,通过发动机输出与控制器指令计算执行机构输出的偏差,可以达到检测、隔离多个执行机构故障的目的.数字仿真表明,这一方法在航空发动机执行机构故障检测中,具有较高的准确性.

Currently there is no efficient method to detect and isolate the failure of actuators,which are an integral part of aero-engine control system.In this paper a novel technique was introduced,which allowed to formulate the difference about the actuators output through the controller's command output and the engine's actual output by means of interaction matrix.Therefore,the failure of multiple actuators could be detected and isolated successfully.The digital simulations demonstrate that this strategy has a hi...