Novel Analysis Method Based on Extended Transfer Function for 3-phase System

Abstract

Usually, analysis of a conventional symmetrical 3-phase feed-back control system can be done using a single-phase conventional transfer function. However, analysis of 3-phase system having rotating coordinate transformations is difficult by the conventional transfer function. Because, the conventional transfer function cannot deal with the control system having the rotating coordinate transformation inserted in the feed-back loop. Therefore, in this paper, the authors propose a novel extended transfer function with the rotating coordinate transformations and analyze the system having a rotating coordinate transformations.