get load flow current results for closed bus-bus switches

[singerm73]

Hi,
I was wondering if there is an option to avoid the fusing of two buses if they are connected by a closed switch. If the buses get fused there are no current results for the switch in between those buses.

Is there a way of getting load flow results for closed bus-bus switches?

[Fabsit]

from what I know, this is currently not possible. We are working on projects where this will be needed as well.
for a simple, single switch, a solution would be to build the difference between branch powers on the two sides of the switch.

[vogt31337]

Hi, I was wondering if there is an option to avoid the fusing of two buses if they are connected by a closed switch. If the buses get fused there are no current results for the switch in between those buses.

Is there a way of getting load flow results for closed bus-bus switches?

No this is not possible. Switches pose a big problem. Since they are derived from a node breaker model, but powerflow can only be calculated for a bus branch model.
The only way, could be to use a small impedance instead of the switch, but in the past this was difficult and the results were not that good.

[ascheidl]

@vogt31337 is right, it can not be calculated within the loadflow.

However, we are currently working on a mapping of the current after the loadflow. This should be available within some weeks.