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STEPSS Documentation

A comprehensive power system simulation suite for static and dynamic analysis of electrical grids.

PFC, Power Flow

Newton-Raphson power flow computation in polar coordinates. Determines the initial operating point for dynamic simulations.

RAMSES, Dynamic Simulator

Time-domain simulation of power system dynamics under the phasor approximation. Supports Backward Euler, Trapezoidal, and BDF2 integration with OpenMP parallelism.

CODEGEN, Model Generator

Translates user-defined models into Fortran 2003 code for compilation and linking with RAMSES. Build models visually with CODEGEN Studio.

PyRAMSES, Python Interface

Python API for scripting simulations, extracting results, and integrating with the scientific Python ecosystem.