Hi Jubeyer,
I see you are looking for largest IEEE test network with real machine model for your research work.
For power system research, one of the largest and most commonly used test systems with detailed modeling of synchronous generators and governors is the 'IEEE 118-bus' test system. This system is often used for stability and reliability analysis in power systems. However, the standard 'IEEE 118-bus' test case does not include detailed synchronous generator and governor models out-of-the-box.
You can start exploring with basic IEEE test cases and augment them with the detailed models for your research.
Please refer to the following reference to know more about:
- 'IEEE – 118 bus System': https://icseg.iti.illinois.edu/ieee-118-bus-system/
I hope this gives you some idea.
