AMPL package for power systems

  • Free software: MIT license

Installation

pip install amplpower

You can also install the in-development version with:

pip install https://github.com/salvapineda/amplpower/archive/main.zip

Documentation

https://amplpower.readthedocs.io/

Development

To run all the tests run:

tox

Note, to combine the coverage data from all the tox environments run:

Windows

 
set PYTEST_ADDOPTS=--cov-append
tox

Other

 
PYTEST_ADDOPTS=--cov-append tox

Changelog

0.0.45 (2026-05-07)

  • Allow for any slack bus and fix bug with signs

0.0.44 (2026-04-21)

  • Improved voltage angle reconstruction in AC OPF (acjabr):

    • Switched from using only np.arccos(cosft) to np.arctan2(sinft, cosft) for voltage angle calculation.

    • Now handles all angle quadrants and preserves correct sign and range.

    • More accurate voltage angle assignment in OPF results.

0.0.43 (2026-01-29)

  • Incorporate cartesian variables to Jabr mode

0.0.42 (2025-09-19)

  • Get Vr and Vi in buses results

0.0.41 (2025-07-10)

  • Slack bus in bustype 3

0.0.40 (2025-07-10)

  • Fix bug in initialization and is_feasible with shunt elements

0.0.39 (2025-07-08)

  • Add is_feasible method to check feasibility of a given solution

0.0.38 (2025-06-06)

  • Fix compute ptdf and lodf methods

0.0.37 (2025-06-06)

  • Add compute ptdf and lodf methods

0.0.36 (2025-06-05)

  • Modify BigM default calculation for DC OTS

0.0.34 (2025-06-03)

  • Add times to results

0.0.33 (2025-06-03)

  • Modification of set_switching function

0.0.32 (2025-06-03)

  • Modify presolve_eps option to 1e-10

0.0.31 (2025-06-03)

  • Remove minus infinity from variables in AMPL model

0.0.30 (2025-06-03)

  • Floor and ceil function for initial BigM values in OTS

0.0.29 (2025-06-02)

  • Bug with bound for power flows in OTS problem

0.0.28 (2025-05-22)

  • Upper and lower bound for power flows

0.0.27 (2025-05-20)

  • Remove cost definition from the model due to bad scaling in constraints

0.0.26 (2025-05-19)

  • Bug with try except in results

0.0.25 (2025-05-07)

  • Split solve_opf function

  • Add upper bound to total generation cost

  • Split creat model and solve model for clarity

  • Change result output

  • The AMPL model is now stored in self.ampl and can be modified by user

  • Add best bound to results if available

0.0.24 (2025-05-05)

  • No default options for solver

0.0.23 (2025-04-24)

  • Fix initialize generation leven when multiple units at the same bus

0.0.22 (2025-04-24)

  • Fix division by zero in generator violation calculation

  • Chage options input to the solver

0.0.20 (2025-04-11)

  • Add maximum violation of AC constraints to results.

0.0.19 (2025-04-09)

  • Bug bus mapping

0.0.18 (2025-04-08)

  • BigM for AC OTS are computed exploring all critical points

  • Compute bounds for real and imaginary parts of voltage

0.0.17 (2025-04-04)

  • Bug relatex to BR_X negative in some networks.

0.0.16 (2025-04-04)

  • Modification of default Bigm values for AC OTS.

0.0.15 (2025-04-04)

  • Bus mapping for some pglib networks

  • Compute Bigm for AC OTS only if needed

0.0.14 (2025-04-04)

  • Bug in solver status

0.0.13 (2025-04-04)

  • Bug options solver

0.0.12 (2025-04-04)

  • Modify option solver input

0.0.11 (2025-04-01)

  • Return results for any status

0.0.10 (2025-04-01)

  • Add formulations of OPF to docs

0.0.9 (2025-03-26)

  • Tightest computation of bigMs for AC OTS.

  • Tightest bounds for variables cosft and sinft.

  • Add violations of AC constraints to results.

  • Test use open-source solvers.

0.0.8 (2025-03-25)

  • Corrected voltage results for AC jabr relaxation (acjabr).

0.0.7 (2025-03-25)

  • Included default COST2 for generators (gencos) if not provided.

  • Corrected voltage results for AC rectangular (acrect).

0.0.6 (2025-03-21)

  • Added support for solving optimal power flow (OPF) problems: DC OPF, AC OPF (both rectangular and polar coordinates) and AC relaxation proposed by Jabr.

  • Added functionality for solving the optimal transmission switching (OTS) problem: Big-M and non-linear formulations. Option to include or exclude connectivity constraints for the OTS problem

0.0.0 (2025-03-14)

  • First release on PyPI.

Project links

Key dates

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  • Released:
Latest release

1 maintainer

PyPI data
Data sourced directly from PyPI's database.
Avatar for salvapineda from gravatar.com salvapineda

Credits

Author: Salvador Pineda Morente

License

MIT License (MIT)

Requires

Python >=3.9

Classifiers

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