航空发动机分布式系统的事件触发滑模控制

An event-triggered sliding mode controller was designed to ensure the asymptotic stability of the aero-engine distributed control systems subjecting to time-varying delay，random packet dropout and external disturbances. To improve the resources utilization， a dynamic event-triggered mechanism (DETM) was introduced to schedule the transmission of the sampled output signals. To facilitate the establishment of sliding mode surface，an observer was designed and an integral sliding mode surface was constructed based on the observed states. By Lyapunov method，the stability criterion was obtained，and the parameter calculation method of controller，observer and DETM was presented in form of linear matrix inequalities (LMIs). Then the sliding mode control law was designed to ensure the accessibility of the sliding surface. In addition， an LMI parameters adjustment method based on iL-SHADE was proposed to improve the feasibility of LMIs. The simulation results showed that the closed-loop system can guarantee better control performance for the given control structure. And under the given simulation conditions，the signal transmission was reduced by 96.5%，greatly saving the communication resources.