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针对航空发动机控制系统须具有强鲁棒性和快速响应等特点及Terminal滑模控制存在奇异性等缺点,提出了一种航空发动机自适应全局快速非奇异Terminal滑模控制器设计方法.设计了一种快速非奇异Terminal滑模面,同时解决了传统Terminal滑模控制的奇异性和远离平衡点收敛速度慢两个缺点.采用自适应方法估计等效干扰,无需已知航空发动机的干扰上界,利用Lyapunov理论分析了其稳定性.仿真结果表明:设计的Terminal滑模控制器具有良好的动态性能,状态输出响应快速,调节时间在2s左右,无稳态误差,无超调,未发生奇异现象.
Aeroengine control system is required to have strong robustness and fast response characteristics and Terminal sliding mode control singularity and other shortcomings, a kind of aeroengine adaptive global fast non-singular Terminal sliding mode controller design method is proposed. A kind of fast and non-singular Terminal sliding mode surface is proposed, and the singularity of the traditional Terminal sliding mode control and the slow convergence of the balance point are solved.It is not necessary to know the upper bound of interference of the aeroengine by using the adaptive method to estimate the equivalent disturbance, The stability of Terminal sliding mode controller is analyzed by Lyapunov theory.The simulation results show that the designed Terminal sliding mode controller has good dynamic performance, the state output response is fast, the adjustment time is about 2s, no steady-state error, no overshoot, no singularity .