基于RBF网络辨识的涡扇发动机双变量神经网络PID解耦控制

根据神经网络与PID算法相结合的思想,针对涡扇发动机双变量控制中变量之间的耦合问题,提出基于径向基函数神经网络(RBF)辨识的发动机双变量神经网络PID解耦控制,并给出控制系统的控制结构及原理.仿真结果表明,该方法控制精度高、跟踪性能强、鲁棒性良好,能够有效地减小各回路之间的耦合影响,并保证控制系统具有良好的稳态和动态性能,适合航空发动机控制.

Double variable PID decoupling control of turbofan engine based on RBF neural network identification

According to the concept of combining the neural network and PID in solving the problem of coupling in turbofan engine double-variable control system,double variable PID decoupling control method for turbofan engine based on RBF neural network identification was presented in this paper.The structure of engine decoupling control system,as well as its decoupling principle was given.Simulation of the control system was performed and excellent tracking performance and robustness were obtained.The simulation results show that the method can effectively reduce the coupling influence of each control loop and assure satisfactory transient performance,thus it is suitable for the aero-engine control.