The comparison between two control methods about simulation of traction load

Abstract

This paper proposed an enhanced solution, which adopted ways of changing methods for controlling current on inverter side, adding practical current after enabling D-Q transform and adopting triangular carrier control instead of hysteresis control, for simulating traction loads based on PWM converter. Simulation result figured that increasingly close loops on inverter side and reduction on the risk of instability may be caused by exceeded switch frequency, comparing with existing solution using hysteresis and direct current control, can be achieved in the advantages of solution proposed in this paper. Therefore, energy saving and better traction load simulating have been implemented. © 2012 Springer-Verlag GmbH.