taptap下载安装安卓学报 ›› 2020, Vol. 38 ›› Issue (3): 12-17.

• 民用航空 • 上一篇    下一篇

基于LMI 的小型涡扇发动机非线性稳态控制

曹惠玲,郑里鹫   

  1. (taptap下载安装安卓航空工程学院,天津300300)
  • 出版日期:2020-06-26 发布日期:2020-06-22
  • 作者简介:曹惠玲(1962—),女,河北唐山人,教授,博士,研究方向为航空发动机状态监控、故障诊断和性能分析.

Nonlinear steady state control of small turbofan engine based on LMI

CAO Huiling, ZHENG Lijiu   

  1. (College of Aeronautical Engineering, CAUC, Tianjin 300300, China)
  • Online:2020-06-26 Published:2020-06-22

摘要: 针对航空发动机强非线性的特点,在其线性状态空间模型基础上引入一般非线性项,拓宽了模型工作范围。基于该非线性模型,结合广义Gronwall-Bellman 引理和LMI 方法,设计稳态调节控制律,并应用Lyapunov稳定性定理对该控制器进行性能验证。以DGEN380 发动机为研究对象,对所得控制律进行仿真,仿真结果验证了该设计方法的有效性。

关键词: 航空发动机, 非线性, 稳态调节器, 广义Gronwall-Bellman 引理, LMI

Abstract: Aiming at the strong nonlinear characteristics of aero-engine, a general nonlinear term is introduced based on its linear state space model to broaden the working range of it. Based on the nonlinear model, a generalized Gronwall-Bellman lemma is applied to design a steady state controller. Then the performance of the controller is verified by applying the Lyapunov stability theorem. DGEN380 engine is taken as simulation object, and the above controller is simulated. Simulation results verify the effectiveness of the current method.

Key words: aero-engine, nonlinear, steady state regulator, generalized Bellman-Granwall lemma, linear matrix inequality

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