Dear all I was using the Network Reduction Toolbox in the last MATPOWER release and found a problem reducing a big system, 1000 bus approx.
I fixed it by intuition, sorry I didn't get the reason of the bug. I tried to understand the code, but there where not much comments. What I did was compare the result from the original and reduce version, and they where almost the same. I attach my modified version of the function that work for me. Differences are in lines 111 to 116. Out of the list I can send the data to replicate the bug, let me know if toolbox developers or Mr. Zimmerman are interested. Best regards, Álvaro Jaramillo Duque
PartialSymLU.m
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