反馈线性化与滑模控制方法在发动机不稳定燃烧主动控制中的应用  

Application of Feedback Linearization and Sliding Mode Control to Unstable Combustion in Engine

作　　者：董飞[1] 何国强[1] 刘佩进[1] 张贵田[2] 

机构地区：[1]西北工业大学航天学院,陕西西安710072 [2]航天推进技术研究院,陕西西安710100

出　　处：《测控技术》2007年第6期40-44,共5页Measurement & Control Technology

摘　　要：以发动机不稳定燃烧过程为研究对象,建立起发动机不稳定燃烧力学系统与控制系统的数学模型,进一步应用基于微分几何的反馈线性化方法,将原非线性系统等价为完全可控线性系统,然后设计了滑模控制器。仿真结果表明,具有跟踪精度高、响应速度快、抗干扰能力强的反馈线性化与滑模控制方法,在发动机不稳定燃烧主动控制中有一定的潜力。An investigation is made to the unstable combustion for combustor, and further for the control purpose a dynamic system and control model is proposed according to the characteristics of the unstable combustion. By means of the feedback linearization procedure of differential geometry, an equivalent, fully controllable and linear model was derived via a homomorphie transformation and a sliding mode controller was constructed for eombustor. Computer simulation results showed the sliding mode controller with well tracking accuracy, rapid response, and strong robustness is efficient in controlling unstable combustion for eombustor.

关 键 词：发动机 不稳定燃烧 反馈线性化 滑模控制 

分 类 号：U463[机械工程—车辆工程]