Which code are you referring to? MATPOWER specifies the parameters as R and X in the branch matrix. I can't remember if the code ever uses B to refer to a line susceptance anywhere.
-- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Aug 3, 2013, at 10:09 AM, Aftognosia Aftognosia <[email protected]> wrote: > DEar Dr Ray Zimmerman, > > In the ACOPF equations we have the line_coductance G and line susceptance B, > where G = r/(r^2+X^2) and B= - x / (r^2+x^2) > where r and x are the series resistance and reactance (pu) respectively. Some > other authors however, take B = x / (r^2 + x^2) > ie. without the minus symbol in the beginning. > > May I ask, which one is used in the matpower code ? > > > > > From: Ray Zimmerman <[email protected]> > To: MATPOWER discussion forum <[email protected]> > Sent: Thursday, August 1, 2013 2:19 PM > Subject: Re: Hessian > > See Table D-9 in the User's Manual. > > opf_hessfcn.m > > > -- > Ray Zimmerman > Senior Research Associate > B30 Warren Hall, Cornell University, Ithaca, NY 14853 > phone: (607) 255-9645 > > > > > > On Aug 1, 2013, at 6:18 AM, Kartik Pandya <[email protected]> wrote: > >> >> >> Dear Ray sir, >> Which .m file calculates Hessian matrix in case of ACOPF? >> >> Thank you > > >
