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The mvaflow array returned by pssarrays.accc_solution() appears to not always return flow direction calculated in the same way.

I'm monitoring ~2000 branches and performing ~1000 contingencies. For each contingency, there are 5-10 branches that show a flow direction change that isn't correct. Taking the contingency manually in the case shows that the flow direction did not change.

For example:

In the 'BASE CASE' contingency, branch 100-200-1 shows a mvaflow of -168.34.

In 'CONTINGENCY 1', branch 100-200-1 shows a mvaflow of 169.32.

Opening the case will show that the magnitude is correct in both cases, but the direction should be the same.

Is this a known issue with a solution?

The mvaflow array returned by pssarrays.accc_solution() appears to not always return flow direction calculated in the same way.

I'm monitoring ~2000 branches and performing ~1000 contingencies. For each contingency, there are 5-10 branches that show a flow direction change that isn't correct. Taking the contingency manually in the case shows that the flow direction did not change.

For example:

In the 'BASE CASE' contingency, branch 100-200-1 shows a mvaflow of -168.34.

In 'CONTINGENCY 1', branch 100-200-1 shows a mvaflow of 169.32.

Opening the case will show that the magnitude is correct in both cases, but the direction should be the same.

Is this a known issue with a solution?