REG: Switchable generators

2015-04-21 Thread nivedita arunachalam
Dear all,
  I am working with integration of solar energy to grid. I am
implementing it with negative loading concept. So to prevent reverse power
flow I included the following codings.

if(et11mpc.bus(42,PD))
   mpc.bus(42,PD)=mpc.bus(42,PD)-et11;
   else
   et11=0;
   end
  Where the et11 represents solar power generation.
Is this concept correct if the solar generation is less than PD then the
generator will be present if PD is less than solar generation then the
solar generator is removed from the system.
   Please guide me.
*Nivedita.*


Re: REG: Switchable generators

2015-04-21 Thread nivedita arunachalam
Dear Ray,
   No Ray, It was made as if solar generator generates more power than
actual load then that solar generation is not required. this may reduce the
solar power into the system but avoids reverse power flow due to negative
load.

*Nivedita.*

On Tue, Apr 21, 2015 at 8:59 PM, Ray Zimmerman r...@cornell.edu wrote:

 Shouldn’t the next to last line be …

 mpc.bus(42, PD) = 0;

 … instead of …

 et11 = 0;

 ?

Ray


 On Apr 21, 2015, at 3:41 AM, nivedita arunachalam 
 niveditaarunacha...@gmail.com wrote:

 Dear all,
   I am working with integration of solar energy to grid. I am
 implementing it with negative loading concept. So to prevent reverse power
 flow I included the following codings.

 if(et11mpc.bus(42,PD))
mpc.bus(42,PD)=mpc.bus(42,PD)-et11;
else
et11=0;
end
   Where the et11 represents solar power generation.
 Is this concept correct if the solar generation is less than PD then the
 generator will be present if PD is less than solar generation then the
 solar generator is removed from the system.
Please guide me.
 *Nivedita.*