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 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 Version: (e.g., SPS 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. 