Yes ... for a column k of the PTDF matrix, if you sum the rows corresponding to branches leaving bus k minus those corresponding to branches entering bus k the result should be 1. At least this is true for a PDTF based on a single slack bus, where bus k is not the slack bus.
-- Ray Zimmerman Senior Research Associate 419A Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Feb 13, 2012, at 12:07 PM, Trivik wrote: > Hi, > > Is there a pattern in the PTDF matrix such as outgoing or incoming links from > a node add up to 1.0 or -1.0? I have not completely figured out PTDFs > intuitively. I would be grateful for some inputs. > > cheers, > Trivik >
