基于逆系统方法的航空发动机逆模型控制系统设计

Design of Aircraft Engine Control System Based on Inverse Model

航空发动机是一个典型的强非线性系统。传统的PID控制通常是对发动机的设计点进行线性化,但这种方法仅能保证发动机在设计点有较好的控制性能,在其他状态的控制性能则较差。针对这个缺点,利用逆系统方法,建立发动机的逆模型,并基于此逆模型设计发动机的逆模型控制系统。仿真结果表明,逆模型控制系统具有较快的响应速度,同时精度符合控制要求。

Aircraft engine is a typical nonlinear system,the linearization method is usually used in the design of traditional PID controller.But it only ensures that the controller meets the requirements at some point,and performance of the intermediate state is poor.In view of this defect,the inverse system theory is introduced,and build inverse model control system of the engine using inverse mode.Simulation results show that the control system has fast response speed,and precision meet the control requirements.