Numerical Simulation of Active Tilting Control for Tilting Train

The mechanical-electrical coupled dynamic model of the tilting train and the mathematical model of the carbody tilting system are established in order to study the method to build tilting control signals and control strategies.The simulation program is developed and the carbody tilt is controlled by the method of online measurement of curving signals.The curved track information is obtained from the filtered signals of the gyroscope on the first bogie frame.The tilting control signals are based on the filtered lateral acceleration of the sensor on the first bogie frame.The controlling signals of the first car and the second car are forecasted from the filtered signals.The P digital controller and H_(∞) robust digital controller are designed for the tilting system.The control results of the two controllers are studied by the numerical method.It can be known from the numerical results that the two controllers both have satisfactory control effects.But the robust controller possesses better performance to restrain tilting angular acceleration in the presence of feedback disturbances or abrupt changes of control signals.The tilting angular acceleration will reduce when the P controller has a lower scale factor,but the tilting angle is not so good.