Need help with a simulation error, a solver crashing, or a modeling challenge?
To get the fastest and most accurate answers from the community and the SPS Software technical team, please follow this quick guide when posting your question.
Before you post
- Search first: Use the search bar (
) at the top right. Your specific error might have been solved recently! - Check the Examples: Have you looked at the File Exchange to see if there is a reference model similar to yours?
The “Perfect Question” Template
When creating a new topic, try to include the following information:
1. The Goal
What are you ultimately trying to achieve?
Example: “I am trying to simulate a grid-connected PV array and observe the transient response during a voltage dip.”
2. The Environment
Software versions matter. Please include:
- SPS Software Version: (e.g., SPS Software 25.2)
- MATLAB Version: (e.g., R2025b)
- Solver Settings: (e.g., Discrete, 50µs time step)
3. The Problem (Screenshots are King 
)
Don’t just say “it doesn’t work”. Show us!
- Paste a screenshot of the Error Message (the full text from the Diagnostic Viewer).
- Paste a screenshot of your Circuit Topology (the specific part giving you trouble).
4. What have you tried?
Briefly explain what you have already done to try and fix it.
Example: “I tried reducing the time step and changing the solver, but the oscillation persists.”
Help us help you! The more context you provide, the faster you get back to simulating. 