Active disturbance rejection control method of auxiliary power unit
The auxiliary power unit is often used to extract shaft power and air flow for power generation and bleed.In order to reduce the interference caused by this process to the turbine engine and improve the anti-interference performance of the original control system,the active disturbance rejection control method and its parametric design method were studied,so as to design the corresponding control parameters according to the linearization model in engineering applications,and numerical simulation of a factory model based on the traditional gain scheduling PI control method and active disturbance rejection control(ADRC)method was conducted.Results showed that,on the premise of keeping the basic performance similar to that of PI control,ADRC had good anti-power generation interference and air entrainment interference performance,and can recover to the original working state faster when the interference occurred.More specifically,the speed fluctuation of ADRC was reduced by 35%,and the speed adjustment time was shortened by 9%,revealing the superior potential for practical engineering applications.
auxiliary power unitcontrol systemPI controlactive disturbance rejection controlparametric design method