On May 8, 2013, at 6:47 AM, ahmad rezaee wrote: > Dear Dr Zimmerman > > 1. A power system may have more than one slack bus? Yes. > If it may have, just the phase angle of one of them can be zero. yes? No, all the slack buses can have non-zero phase angles. > 2. In matpower, at mpc.gen at the row corresponding to "slack bus" if we > change value of coloumn 2 (Pg), the powerflow results will change? No, Pg and Qg for the slack bus are calculated during the power flow.
Shri > > > Kind Regards > > Ahmad
