Kundur Two-Area System Simulink Model (.slx) for MATLAB R2025b and Adding Distributed Generators

I am looking for a Simulink (.slx) file of the Kundur two-area power system model that is compatible with MATLAB/Simulink R2025b.

Specifically, I would like to know:

1. Where can I find or download a reliable Simulink implementation of Kundur’s two-area system (preferably already validated)?
2. If an existing model is from an older MATLAB version, what steps are required to make it compatible with R2025b?

Additionally, I want to extend the model by integrating distributed generators (DGs) into the system.

1. What is the recommended approach to add distributed generation units (e.g., inverter-based DGs or small synchronous generators) into the Kundur two-area system in Simulink?
2. Which Simulink/Simscape Electrical blocks should be used for modeling DGs?
3. Are there best practices for:

• Connecting DGs to existing buses
• Control strategies (e.g., PQ control, droop control)
• Maintaining system stability after integration

Any references, example models, or guidance would be greatly appreciated.

Answer 1

[Ritam]

I believe the model you are referring to is Kundur’s Two‑Area System example from the Simscape Electrical Specialized Power Systems (SPS) library.

I was able to find this example for MATLAB R2025a under Kundur's Two-Area System with PMU - MATLAB & Simulink documentation.

As discussed in a related MATLAB Answers Post, the rights to the SPS library have since been acquired by OPAL‑RT Technologies. If you are looking to use the model in MATLAB R2025b, one possible approach would be to upgrade or migrate the model to Simscape Electrical (physical) blocks, as outlined in this documentation.

For any further clarification or version‑specific guidance, you may consider reaching out to MathWorks Technical Support.

[Dimuthu Punsara]

I'm finding for MATLAB 2025b version. Your link is not working for MATLAB 2025b