Samnett and Samlast
Samnett and Samlast are two separate programs which are integrated with the EMPS model. In addition to the modelling features in the EMPS model, Samnett and Samlast both perform detailed power flow analysis to compute losses and check for overloads on pre-defined lines or interconnections.
Vector Fitting is a robust numerical method for rational approximation in the frequency domain using poles and residues. It permits to calculate multi-port models directly from measured or computed frequency responses. The resulting approximation has guaranteed stable poles that are real or come in complex conjugate pairs, and the model can be directly converted into a state-space model.