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Consider a HVDC link whcih uses thyristor based line-cooutated converters as shown in the figure. For a power flow of 750 MW from System 1 to System2, the voltages at the two ends, and the current, are given by: V1 = 500kV, V2 = 485kV and I = 1.5kA. If the direction of power flow is to be reversed (that is, from System 2 to System1) without changing the electrical connections, then which one of the following combinations id feasible ?
If power is to be reversed
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- V1 = – 500kV, V2 = – 485kV and I = 1.5kA
- V1 = – 485kV, V2 = – 500kV and I = 1.5kA
- V1 = 500kV, V2 = 485kV and O = – 1.5kA
- V1 = – 500kV, V2 = – 485kV and I = – .5kA
Correct Option: B
| I = | ||
| R |
For power to be reversed
| I = | (+V) | |
| R |
V1 = – 485kV, V1 = – 500kV
I = 1.5kA
