Open Access
Table 2
Parameters of 220 kV dual power transmission system and the proposed topology in this paper.
| Items | Specifications |
|---|---|
| Mains voltage of sending terminal/kV | 230 ∠ 0° |
| Mains voltage o receiving terminal/kV | 220 ∠ −15° |
| Sending terminal of power source internal resistance/Ω | 1.55 + j6.59 |
| Receiving terminal of power source internal resistance/Ω | 1.55 + j6.59 |
| Line impedance/Ω | 6.17 + j31.09 |
| Rated voltage of exciting unit/kV | 132.79:26.56:15.33 |
| Rated capacity of exciting unit/MVA | 24 × 3 |
| Percentage of no-load current of exciting unit | 2% |
| Percentage of short-circuit impedance between two windings of exciting unit | 8% |
| Ratio of exciting unit |
|
| Rated voltage of series unit/kV | 13.28:26.56 |
| Rated capacity of series unit/MVA | 12 × 3 |
| Percentage of no-load current of series unit | 2% |
| Percentage of short-circuit impedance of series unit | 8% |
| Ratio of series unit | 1:2 |
| Tap changer | 0, ±1, ±2, ±3, ±4, ±5 |
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