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The Gauss Seidel load flow method has following disadvantages. Tick the incorrect statement.
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- Unreliable convergence
- Slow convergence
- Choice of slack bus affects convergence
- A good initial guess for voltages is essential for convergence
Correct Option: D
The time required for a single it eration in G-S method is smaller with respect to NewtonRaphson method, but no. of iteration is quite large as it is proportional to the size of system. Also, convergence property also gets affected by the selection of slack bus.
1.
| = | = 2 × 0.01P1 + 30 = 0.02 P1 + 30 | |
| dP2 |
| = | = 2 × 0.05P2 + 10 = 0.01 P2 + 10 | |
| dP2 |
| = | = | ||
| dP1 | dP2 |
= 0.02P1 + 30 = 30 = 30 = 0.1 P2 + 10
2P1 + 3000 = 10P2 + 1000
2P1 + 2000 = 10P2
P1 + P2 = 200
P2 = 200
P1 = 0
| = | = 20 Rs/Mwh | |
| dP1 |
