Extended Noniterative Algorithm Using Multi-machine Two-Axis Model for Transient Stability Analysis

과도 안정도 해석을 위한 다기 계통 2축 모델을 이용한 확장 비반복 알고리즘

The Conventional time-domain simulation of transient stability requires iterative calculation procedures to consider the saliency of generator. Recently, a non-iterative algorithm has successfully developed to take into account the generator saliency exactly with the use of $E_q'$-model. This study proposes an extended non-iterative algorithm by adopting the two-axis generator model. Given internal voltages and rotor angles of the generators, network voltages and generator currents can be directly calculated by solving a linear algebraic equation, which enables us to reduce the computation time remarkably.