Frequency domain transient stability simulation of power systems: implementation by supercomputer

Results of performing transient stability simulations of a power system using frequency-domain methods are reported, and comparisons are made with a standard time-domain simulation of the same events. Each simulation was run on both a VAX and a CRAY machine. Because of their inherent structure, it is necessary to implement time domain simulations by serial techniques that are not capable of effectively exploiting parallel and vector processing capabilities. Frequency domain techniques are more likely to give rise to vector and matrix operations which are amenable to parallel and vector processing, and they are generally less efficient in dealing with nonlinearities. The relative benefits of the simulation methods are evaluated