An Accurate and Efficient Voltage Behind Reactance Induction Machine Model based on Shifted Frequency Analysis

Abstract

In this paper, an accurate and efficient voltage-behind-reactance induction machine model based on shifted frequency analysis for electromagnetic transients-type simulation is presented. The proposed machine model has a constant equivalent admittance matrix for direct machine-network interface hence expensive re-formulation and re-factorization of network admittance matrix for every integration time step is eliminated. Moreover, to achieve higher degree of accuracy an iterative procedure option is included. A number of case studies were conducted and results demonstrate the superiority of proposed model over traditional time domain models.