hi raythanks for your reply.I have one doubt. I am doing research on integration of solar energy. In that i need to size the solar generation. Also i am following the negative load approach. Power output of solar depends on the time of operation of PV array. So it may yield annual generation or daily generation. At each bus selected (In IEEE bus system) i have to subtract the solar generation from the load value. How to do this without knowing that the load at bus is daily or annual?kindly reply mefromambika
From: Ray Zimmerman <r...@cornell.edu> To: MATPOWER discussion forum <matpowe...@list.cornell.edu> Sent: Tuesday, 5 May 2015 11:52 PM Subject: Re: reg data i ieee In a power flow case, the load and generation values are steady state power values, not energy values. Daily or annual generation is energy. Ray On May 5, 2015, at 1:33 PM, ambi ka <rambi_2...@yahoo.co.in> wrote: hi rayIn power systems calculations we are using IEEE 30 bus system , IEEE 118 bus sytem, etc .In that bus data, the load at each bus refers to daily load or annual load. Also generation at each bus refers to daily or annual generation?kindly clarify my doubtfromambika