EMPS - multi area power-market simulator
EMPS (EFI's Multi-area Power-market Simulator) is a tool for forecasting and planning in electricity markets. It has been developed for optimization and simulation of hydrothermal power systems with a considerable share of hydro power. It takes into account transmission constraints and hydrological differences between major areas or regional subsystems.
ENKI - hydrological modelling framework
Enki is a hydrological modelling framework, originally designed as a R&D tool for building and evaluating distributed precipitation-runoff models. It is currently under operationalisation for everyday use in hydropower production. Enki is licensed as open source software under the GNU LGPL license, and is named after the Sumerian deity for water, intelligence and creation.
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.