Helicopter/engine comprehensive simulation model and turboshaft engine control method

The present invention discloses a comprehensive simulation model of helicopter / engine. The present invention is incorporated in the integrated simulation model of the existing helicopter / rotorcraft spin states of the engine rotor dynamics equations, it is possible to accurately simulate the dynamic changes Helicopter spin training process. Prior to the present invention also discloses a control method based on the turboshaft engine and a control system of the above model, the normal helicopter flight phase, into the spin stage, stable spin phase and spin recovery stage clutch is closed, the fuel flow rate employed to controlling the turboshaft engine controller univariate variables; after spin recovery stage clutch is engaged, in use the fuel flow rate and the vane angle control turboshaft engine as a two-variable controller variables. The present invention allows the turboshaft engine helicopter free turbine spin training process speed overshoot does not exceed 3%, and the dynamic fuel quality is greatly improved.