航空发动机大延迟系统Smith预估补偿模糊PID控制算法

摘要

Because of long time-delay, parameters oscillation have are a serious problem for the fan inlet guide vane system of a certain turbofan engine in the process of trial run test. In order to solve this problem, a smith predict fuzzy PID algorithm is proposed. The result of simulation indicates that it requires less accurate predict model and has better robustness by comparing with the traditional Smith predictor.%试车过程中某型涡扇发动机低压压气机进口导流叶片控制通道出现了参数摆幅较大的现象,经判读试车数据认定该通道存在较大的延迟,针对该问题为该通道设计了一种Smith预估补偿模糊PID控制算法,计算机仿真结果表明:与传统的Smith预估补偿算法相比,该算法对模型的不匹配具备较强的适应能力.