摘要：AbstractModern turbofan engines are presented with nonlinearity, strong couplings and disturbances. These features have brought challenges not only to obtain a precise model but to design control systems. Many modern control methods rely on accurate model information and PID is difficult to meet the increasingly high control requirements. Active disturbance rejection control (ADRC) is known for its excellent performance on self-decoupling, disturbance rejection, simplicity and low precision requirements for the model. For the couplings and disturbances of turbofan engines, a modified method, ADRC based on feedforward inverse system, is presented. The simulation shows that the modified method has superior dynamic performance than ADRC and SIMC-PID in setpoint tracking, disturbance rejection and decoupling ability. Moreover, the modified method is more robust than ADRC and SIMC-PID.
