There are many versions of "the" IEEE 30 bus system out there in the 
literature. MATPOWER includes two versions ...

   case30.m
   case_ieee30.m

See the help at the top of the files for the details on the source of the data 
for each.

-- 
Ray Zimmerman
Senior Research Associate
419A Warren Hall, Cornell University, Ithaca, NY 14853
phone: (607) 255-9645




On Apr 23, 2012, at 9:41 AM, iman wrote:

> Dear All,
> 
> As I have read in the Matpower mannual,Case 30 represents IEEE 30 bus 
> system.Looking at mpc.gen ,we see generators are located at 1, 2, 13,22,23,27.
> while in other IEEE 30 bus system the generators are located in different 
> places.For example in lejpt file (attachment ) generators are located at 1 2 
> 5 8 11 buses or in another file (hindawi) they are located at 1 2 5 11 13.
> 
> Where does the contradiction stem from?
> why while all of them are IEEE 30 bus system,their data is different?
> 
> Thank you
> Iman
> 
> <lejpt.academicdirect.org.gif><30 bus hindawi.jpg>

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