| 6. Parameters of the initial mode-1 |
8.1 |
|
| 6.1. Operation mode with nominal power. |
| Assume that the generator operates into an
infinite busbar |
| system. All values are in per-unit system (index
✱ is omitted). |
| Active stator resistance is neglected. |
| 6.1.1. Active generator current |
|
|
| 6.1.2. Total generator current |
|
|
| 6.1.3. Angle between the voltage vector on the TG
busses (Ua) and total current (Ia) |
| φ0 |
= |
arccos 0.9 |
= |
-25° (lagging) |
|
| 6.1.4. Reactive generator current |
| Ix0 |
= |
Ia0 |
· |
sinφ0 |
= |
1.11 |
· |
sin(-25°) |
= |
1.11 |
· |
(-0.42) |
= |
-0.47 |
|
| 6.1.5. Angle between axis q and voltage on
generator busses (δ-β). δ - angle
between |
| axis q and fixed axis, β - angle between voltage
vector and fixed axis. |