Sienna-Platform

Sienna-Platform/PowerNetworkMatrices.jl

Methods to generate matrix representations of power systems matrices

Stars: 31
Forks: 22
Open beginner issues: 0
Indexed issues: 34
Avg merge: 1d 11h
Merged PRs (30d): 18

Dominant language: Julia
License: BSD-3-Clause
Last GitHub push: Aug 17, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

Open All

34 open issues indexed

`arc_subnetwork_axis` keeps pre-merge arc labels after a bus merge Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

Sienna-Platform/PowerNetworkMatrices.jl#369 · Opened Sep 14, 2026
Use StringTemplates in Arc Names Open

Performance

Sienna-Platform/PowerNetworkMatrices.jl#358 · 1 assignee · Opened Sep 3, 2026
`InterruptibleStandardLoad`: constant-Z dropped Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

Sienna-Platform/PowerNetworkMatrices.jl#349 · Opened Aug 25, 2026
`_partition_members_by_impedance_angle` is order-dependent Open

invalid

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Sienna-Platform/PowerNetworkMatrices.jl#342 · Opened Jul 31, 2026
CI performance tests: virtual MODF build Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Sienna-Platform/PowerNetworkMatrices.jl#332 · 2 comments · Opened Jun 18, 2026
Cleanup Documentation for Diataxis Open

Sienna-Platform/PowerNetworkMatrices.jl#292 · 1 comment · 2 assignees · Opened Apr 15, 2026
Add AbstractGraph interface via extension to PowerNetworkMatrix type? Open

help wanted Some time in the future

Difficulty 5/5 Over a week Newbie friendliness 35/100

Sienna-Platform/PowerNetworkMatrices.jl#265 · 1 comment · Opened Mar 6, 2026
Interface Uniformity for network reductions related objects Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

Sienna-Platform/PowerNetworkMatrices.jl#259 · Opened Feb 24, 2026
Add an option to build Ybus without taps. Open

Sienna-Platform/PowerNetworkMatrices.jl#254 · 2 assignees · Opened Feb 12, 2026
Distributed slack interface Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

Sienna-Platform/PowerNetworkMatrices.jl#240 · Opened Jan 6, 2026
Handle PhaseShiftingTransformers in Parallel Open

Sienna-Platform/PowerNetworkMatrices.jl#231 · 1 comment · 1 assignee · Opened Dec 30, 2025
Tutorials have errors in examples Open

bug documentation

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Sienna-Platform/PowerNetworkMatrices.jl#229 · Opened Dec 30, 2025
Y bus mismatch vs. PSS(e) on modified WECC 240 case Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Sienna-Platform/PowerNetworkMatrices.jl#215 · 1 comment · Opened Nov 14, 2025
Handle parallel branch reductions for branches with phase shift Open

Sienna-Platform/PowerNetworkMatrices.jl#201 · 1 comment · 1 assignee · Opened Nov 4, 2025
Ward Reduction which leads to parallel lines Open

Sienna-Platform/PowerNetworkMatrices.jl#197 · 1 comment · 1 assignee · Opened Nov 3, 2025
Incorporate Impedance Correction Tables in Ybus Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Sienna-Platform/PowerNetworkMatrices.jl#196 · Opened Nov 2, 2025
Performance improvements for Ward reduction of large systems Open

Sienna-Platform/PowerNetworkMatrices.jl#194 · 2 assignees · Opened Oct 29, 2025
Interface for building ArcAdmittanceMatrix from System Open

Sienna-Platform/PowerNetworkMatrices.jl#193 · 1 comment · 1 assignee · Opened Oct 28, 2025
Review Radial branch reduction PV-PQ bus handling Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

Sienna-Platform/PowerNetworkMatrices.jl#180 · 1 comment · Opened Aug 18, 2025
Implement option to reduce/or not reduce reactive power injection buses for D2 reduction Open

Sienna-Platform/PowerNetworkMatrices.jl#174 · 1 assignee · Opened Aug 7, 2025
Support indexing into PowerNetworkMatrix with vectors Open

Sienna-Platform/PowerNetworkMatrices.jl#158 · 1 assignee · Opened Jul 22, 2025
Support serialization/deserialization of NetworkReductionData Open

enhancement

Sienna-Platform/PowerNetworkMatrices.jl#152 · 1 assignee · Opened Jul 15, 2025
Improved testing for 3WT parsing and ybus validation for last 2% Open

Sienna-Platform/PowerNetworkMatrices.jl#138 · 2 comments · 1 assignee · Opened Jul 9, 2025
`IndexStyle(PowerNetworkMatrix)` errors Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

Sienna-Platform/PowerNetworkMatrices.jl#91 · Opened Oct 29, 2024
Check serialization for cases when using radial branches (with multiple subnetworks) result in a single bus in a subnetwork Open

bug

Sienna-Platform/PowerNetworkMatrices.jl#83 · 1 assignee · Opened Jun 10, 2024
PTDF matrix does not use lookup dictionary when retrieving a row of the matrix Open

documentation

Sienna-Platform/PowerNetworkMatrices.jl#79 · 3 comments · 1 assignee · Opened Apr 9, 2024
Implement alternative PTDF method Open

Performance Some time in the future

Difficulty 5/5 Over a week Newbie friendliness 25/100

Sienna-Platform/PowerNetworkMatrices.jl#78 · Opened Apr 6, 2024
Build Matrices considering sub-systems Open

Some time in the future

Sienna-Platform/PowerNetworkMatrices.jl#77 · 1 assignee · Opened Apr 2, 2024
Add corner case tests Open

Sienna-Platform/PowerNetworkMatrices.jl#71 · 1 assignee · Opened Jan 18, 2024
sparsify is very slow Open

enhancement

Sienna-Platform/PowerNetworkMatrices.jl#62 · 1 assignee · Opened Sep 29, 2023
Improve computation of virtual LODF matrix Open

Some time in the future

Difficulty 5/5 Over a week Newbie friendliness 25/100

Sienna-Platform/PowerNetworkMatrices.jl#42 · Opened May 2, 2023
Implement Rectangular Ybus model Open

Some time in the future

Sienna-Platform/PowerNetworkMatrices.jl#29 · 1 assignee · Opened Mar 28, 2023
Implement minimum line subset to be added Open

Some time in the future

Difficulty 5/5 Over a week Newbie friendliness 20/100

Sienna-Platform/PowerNetworkMatrices.jl#8 · Opened Feb 13, 2023
Selecting more than 1 column of PTDF matrix Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Sienna-Platform/PowerNetworkMatrices.jl#1 · 3 comments · 1 reaction · Opened Mar 16, 2021

A short digest of beginner-friendly GitHub issues.