Detecting Loop Flows with Python Script
Has anyone put any effort towards developing a python script to detect loop flows/circulating VARs in a large system? If not, how would you approach the problem?
For a simple case (parallel off-tap transformers connected to a single bus) it may not be that difficult, but can the algorithm be expanded to more general cases? I realize that the detection itself is not trivial and there are a number of papers on the subject.
It would be cool to see what the community could come up with!
Sample papers (might not be the best on the subject):
"Circulating MW and MVAR in power systems" Link to abstract (behind paywall)
"Fast Algorithms for Detecting Circular VAR Flows in Large Power-Flow Models" Link - pdf
"On Detecting and Removing Undesired Reactive Loop Flows" Link - google
I've had the same problem. One year an entire suite of base cases were plagued with the problem and it took days to sort out.
@JervisW what exactly is the problem that you faced? To be frank, I have till date not been able to identify loop flows as described in this post.
@amaity Our power system has a 500 kV ring circling around a 220 kV inner network. There are multiple connection points between the outer and inner rings. The circulating VARS were found going down one transformer, across the 220kV network then up another transformer and back to where it started!
How do you even go about finding that!?!
Yes, how did you identify them?