Using SimAutoWrapper with Python and PowerWorld

A one-day class for those familiar with Power World and with power system dynamics experience on any platform.

Register by email to rguttro@sandia.gov no later than May 15th, 2026.

For LANL employees:

• Due to badging restrictions, US Citizens only
• Sandia site access permissions will be managed after registration

Objectives

• Use Python SimAutoWrapper (via SimAuto) to conduct steady state and dynamic simulations
• Use Python to save transient results to hard drive and process the binary files to get results.  
• Find variable names for SimAuto objects
• Format, construct, and implement .aux files using the PowerWorld GUI and via SimAuto
• Add and modify grid new components to your model
• Read and modify Power World parameters and variables using Python
• Set up and run Power World using parallel processing

Prerequisites

• Experience running Power World and you have run dynamics on any platform (e.g. PSLF)
• Basic working knowledge of Python, Pandas, Numpy
• Bring your govt laptop with PowerWorld Version 24 and SimAuto,
• Transient Stability, Visual Studio Code installed
• Additional laptop setup required before class starts
• Check that saw.py is properly installed by running the ‘test code’

Class Materials

Additional class materials will be added two weeks prior to the course.

• Using SimAutoWrapper with Python and PowerWorld flyer

Contacts

For any questions, please reach out to our contacts:

Sandia National Laboratories contact; Ross Guttromson, rguttro@sandia.gov           

Los Alamos National Laboratory contact; Jose Tabarez, jtabarez@lanl.gov