A new modeling method based on the power — Power transfer function

Based on the essential theory of bond graph, a novel modeling method which is called power transfer function is presented in this paper. This method has so many advantages: with this method we can set up the systems´ model easily; and the power transfer model is more visual than the bond graph model; it is more convenient than the bond graph model when emulated by the simulink of Matlab; it is easier to calculate the system´s transfer function. This paper sets up the model to different power systems by both the bond graph and the power transfer function, the systems´ transfer function results and the Matlab simulink results prove this power transfer function is valid and advanced.