Up to my knowledge, you can do it simply by averaging the complex powers ( the sending end and receiving end of branch i) and dividing the result by the RATE_A of the same branch that you have defined in your case file. In order to have the value in percentage you need to multiply the final result by 100. That all.
On Tue, Jul 30, 2013 at 11:45 AM, iman <[email protected]> wrote: > Dear all, > > In most graphical power system software we see branch capacity as a > constant .e.g line 2-4: 87% > > But if you run matpowerpf you would see for a certain branch the sending ( > here bus 2) and receiving bus (bus 4) have different S (complex power) than > bus 4 to bus 2.If anybody wants to calculate the percentage of line used > capacity which of these should he refer to(16.89 or 16.43)? > > Here is the example: > > Case 30 > > From Bus Injection To Bus > Injection > > P (MW) Q (MVAr) P (MW) Q > (MVAr) > > 16.07 5.21 > -15.89 -6.66 > > S=16.89 MVA S=16.43 > MVA > > Thanks > > >
