Power system dynamic stability analysis of electro-mechanical transmission

In order to analyze the power system dynamic stability of electro-mechanical transmission, a new method of variable time scale was proposed. The paper applied all the high power devices and battery as the excitation source, and support capacitor as a response to the power system. Based on these, a whole mathematical model of power system was constructed by using C language to design the simulation program. Then, the method of variable time scale, which has realized the power stability analysis in large time scale and the energy stability analysis in small time scale, was applied to analyze the dynamic stability of power system. The results optimize the selection of system equivalent capacitor, and provide the important theoretic reference to the harmonization of control technology and the drive control strategy in the vehicle.