摘要
为抑制系统参数不确定性和外部动态干扰对航空发动机系统控制性能的影响,本文基于干扰观测器为航空涡扇发动机设计一种多变量滑模控制器。首先,对航空涡扇发动机系统模型进行归一化和增广处理,在此基础上设计干扰观测器以实现对未知复合扰动的在线估计。其次,基于干扰观测器的输出为航空涡扇发动机设计多变量滑模控制器,并基于Lyapunov稳定理论证明了闭环系统的稳定性。最后,仿真结果及对比分析验证了所设计控制方法的有效性。
To suppress the influence of parameter uncertainty and external disturbances on the control performance of aero-engine,a multivariable sliding mode anti-disturbance control scheme was developed for turbofan engines based on a disturbance observer(DOB).Firstly,the original turbofan engine system model was normalized and augmented,based on which the DOB was designed to estimate the unknown compound disturbances.Furthermore,the multivariable sliding mode control scheme was presented based on the output of DOB,and the stability of the closed-loop system was proved through the Lyapunov approach.Finally,the simulation results and contrastive analysis verify the effectiveness of the developed control method.
作者
马浩
陈龙胜
王琦
MA Hao;CHEN Long-sheng;WANG Qi(School of Aircraft Engineering,Nanchang Hangkong University,Nanchang 330063,China)
出处
《南昌航空大学学报（自然科学版）》
CAS
2022年第4期7-13,共7页
Journal of Nanchang Hangkong University(Natural Sciences)
基金
国家自然科学基金(61963029)。
关键词
航空涡扇发动机
干扰观测器
滑模控制
多变量控制
turbofan engine
disturbance observer
sliding mode control
multivariable control
