An integrated controller design for a small aero-engine

A nonlinear model and integrated controller are evolved for a small aero-engine which is based on the Price Induction company's DGEN 380 aero-engine. The mathematical model of DGEN380 aero-engine is built by a set of nonlinear dynamic equations that is validated. Based on the mathematical model, the integrated controller is designed by the advanced nonlinear sliding mode control method. This integrated controller can keep some certain thrust levels during steady state and maintain repeatable performance during transient operation from one requested thrust level to another that is different from the traditional aero-engine controller. The conventional controller is consist of the steady controller and transient controller whose structure is involved, and efficiency is low. However, the integrated controller is a steady controller, also is a transient controller. The integrated controller can offset the impact of the signal noise and harmonic disturbance at a certain power point. And the dynamic performance of the integrated controller is satisfactory at the transient process.