modelTwo_Areas_PSAT
11-bus 4-machine 2-area test system implemented with PSAT models
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
This example is composed by the 11-bus 4-machine 2-area system, where these two areas are connected via weak tie lines. This test system is ideal for studying dynamic stability, power interchange, oscillation damping, etc.
The system undergoes a three-phase-to-ground fault on Bus 8 at 1s, lasting for 50ms. Simulate the system for 10 seconds. Variables of interest are the ones related to inter-area modes. For example:
g1.order6_1.wg2.order6_1.wg3.order6_1.wg4.order6_1.w
which are variables that represent the generator's speed, in per unit. Note that generators 1 and 2 swing together, while swinging against generators 3 and 4. This is due to coherency between the area's group of generators.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | r | 0.0001 | |
| Real | x | 0.001 | |
| Real | b | 0.00175*0.5 |