v1.0.0 — OpenIWPI initial release (Modelica & FMI Conference 2025)

v1.0.0 — OpenIWPI initial release (Modelica & FMI Conference 2025)

First public release of OpenIWPI — the Open-Instance Wave-Phasor Interface library — the open-source companion to the paper presented at the 16th International Modelica & FMI Conference (Lucerne, Sep 8–10, 2025).

OpenIWPI couples phasor-based (TS) and electromagnetic-transient (EMT) power-system models so converter-rich grids can be simulated — and linearized — as a single hybrid model in Modelica, without co-simulation.

What's included

• Wave-phasor interface and a hybrid bus that connect an OpenIPSL phasor node to MSL Electrical (EMT) pins.
• Utilities: Clarke and Park transformations, a resettable integrator, the Second-Order Generalized Integrator (SOGI), and the DSOGI-PLL.
• Example: Examples.SimpleCircuit, a two-bus case demonstrating recovery of the positive-sequence current phasor.

Dependencies

• OpenIPSL v3.1.0, Modelica Standard Library 4.0.0, Complex 4.0.0.
• Developed and tested with Dymola 2025x.

Known limitations

• Examples.ConverterCircuit is a placeholder pending integration; the STATCOM example it represents was presented in de Castro & Vanfretti, OSMSES 2022 (https://ieeexplore.ieee.org/document/9769157).

How to cite

Please cite the conference paper — see CITATION.cff and the README.

Released under the 3-Clause BSD License.