Jonas Persson, EKC, KTH

SIMPOW is a power system simulator developed by ABB Power Systems in Västerås, Sweden. SIMPOW can be used for analysis of power system dynamics both through nonlinear time simulation and linear analysis. What makes SIMPOW unique is the possibility to run dynamic studies in fundamental frequency mode with phasors as in PSS/E and EUROSTAG but also in instantaneous value mode like EMTP or EMTDC. The time step is variable and automatically adjusted to how dramatically the power system behaves. The program features an extensive library of standard models, but also allows user-defined models.