I think your problem is because bus 1 is the slack bus and the there cannot be 
limits placed on it in the standard pf.

Henry Louie
Electrical Engineering Department
University of Washington, Seattle Wa
206-543-6990

On Sat, 4 Aug 2007, ahmad safari wrote:

Hi

Import attached data and run power flow:

 [MVAbase, bus, gen, branch, success, et] = runpf(case9withnewpattern);

Now see variable gen:

 open gen;

and see generated power of bus 1, it is 259.19 MVA. But the Pmax of this bus
is 250;
Why?
don't the application check the Pmax?

Thanks.

AhSa



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