Seven-bus three-machine test network package
This small 7-bus test system is implemented in Modelica for performing tests. Although the test range is limited, the network can be very useful for debugging, basic simulation and library training purposes.
The system was validated against historical data and the system is, originally, very stable. However, the present system is highly loaded, which makes it ideal for testing coherency of the generation units under certain disturbances, for example.
Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).
|Network||Seven-bus test system model, ready for simulation|
|Generators||Set of generation unit models|
|Data||Power flow data records for network initialization|
Seven-bus test system model, ready for simulation
This example model is a small synthetic power system that can be used for assessing classic transient stability of a power grid, when undergoing a three-phase-to-ground fault. The fault is applied on bus FTILL5, at 1 second and lasts for 200ms.
The system should be simulated during 10 seconds and the variables of interest are:
where interesting oscillatory behavior is observed, since the generators appear to be non-coherent, swinging against each others.
In addition to that, it is also interesting to check the following voltage variables:
Extends from Modelica.Icons.Example (Icon for runnable examples).Automatically generated Thu Oct 6 17:41:43 2022.