涡喷发动机多变量自适应加速控制

提出了一种模型参考自适应控制方法，并应用于双转子涡喷发动机多变量控制系统。仿真研究表明，该方法在整个飞行包线内均有满意的瞬态响应，对非线性的建模不确定性具有较好的鲁棒性，以及对多变量系统中较强的耦合作用有较好的解耦效果。与传统的调节器相比，发动机加速时间约减少１６％，加速过程中发动机推力明显增加，平衡状态仍可提高约９％。

MULTIVARIABLE ADAPTIVE ACCELERATION CONTROL FOR A TURBOJET ENGINE

A multivariable model reference adaptive control scheme is proposed and applied to a multivariable control system of a dual spool turbojet engine.Simulation investigation shows that the proposed multivariable adaptive system has the following advantages:(1)satisfactory transient responses at different operating points from idle to maximum dry power in the full flight envelope;(2)good robustness for unmodelled dynamics of nonlinear engine,and (3) good decoupling effectiveness for the multivariable system with significant coupling.The engine acceleration time is reduced by about 16 percent and thrust is increased by about 9 percent as compared with the conventional engine controller.