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提出了一种满足涡扇发动机不同进口畸变要求的控制规律.在涡扇发动机低进口畸变条件下通过提高增压比来提高性能,在高进口畸变条件下降低增压比并辅助导叶角调节以提高发动机裕度.根据不同的进口畸变条件下的裕度要求,提出了带边界缓冲区的差分进化算法(DEBZ),在包线内优化获取发动机增压比及导叶角控制规律.结合模型、控制器和控制规律完成涡扇发动机全包线仿真.仿真结果表明:采用该控制规律在畸变指数为2的条件下,涡扇发动机推力性能能够提高8%以上,而在畸变指数为8的条件下,涡扇发动机的可用裕度可以满足稳定要求,同时推力性能能够提高1%以上.
A control law is proposed to meet the requirements of turbofan engine with different inlet distortions.The turbocharger engine can improve the performance by increasing the turbocharger ratio under the condition of low inlet distortion and reduce the turbocharging ratio and assist the guide vane angle adjustment under the condition of high inlet distortion To improve the engine margin.According to the requirements of margin under different inlet distortion conditions, a differential evolution algorithm with boundary buffer (DEBZ) is proposed to optimize the control strategy of engine pressure ratio and guide vane angle in the envelope. Model, controller and control law of the turbofan engine.The simulation results show that under the condition of the distortion index of 2, the thrust performance of the turbofan engine can be improved by more than 8%, while the distortion index is 8 , Turbofan engine available margin to meet the stability requirements, while thrust performance can be increased by 1% or more.