An approach to the initialization of dynamic induction motor models

Abstract

This paper proposes a steady state method as a solution to the problem of initializing the dynamic models of induction motors in transient stability studies. The results of the proposed method are compared to those obtained by two conventional initialization methods that are used in current production grade simulation programs, in a test power system that includes an industrial subsystem with a significant amount of induction motor loads. It is also shown in this paper that using a correct initialization method for these dynamic devices is important, because the choice of the method can modify the results of the dynamic time-domain simulation, and therefore the assessment of power system stability.