I got it. Thanks Mr. Zimmerman. On Thu, Jan 13, 2011 at 12:25 AM, Ray Zimmerman <[email protected]> wrote:
> I didn't have time to look at the paper, but my suggestion doesn't > necessarily assume a lossless line, just that the flow in the line (and the > losses in it) are specified as inputs and not dependent on the solution. > This may be good enough depending on your application. > > If you are looking at modifications to the Newton power flow, you'd find > that code in newtonpf.m. > > -- > Ray Zimmerman > Senior Research Associate > 211 Warren Hall, Cornell University, Ithaca, NY 14853 > phone: (607) 255-9645 > > > > On Jan 11, 2011, at 9:41 PM, jeramy mendoza wrote: > > That assumes that the link is lossless right? I saw a paper which modifies >>> the newton-rhapson iteration to include HVDC losses.My problem is how to >>> access in Matpower the bus voltages in each iteration,& consequently to use >>> it to determine the voltages in the rectifier & inverter bus. I'm ok with >>> the concepts, my problem is how to implement it in Matpower. The paper is >>> attached herewith. Thanks Mr. Zimmerman. >> >> . > > > On Wed, Jan 12, 2011 at 5:27 AM, Ray Zimmerman <[email protected]> wrote: > >> The easiest way to model the HVDC link is simply as a pair of injections, >> one positive and one negative, entered into the load columns in the bus >> matrix. >> >> -- >> Ray Zimmerman >> Senior Research Associate >> 211 Warren Hall, Cornell University, Ithaca, NY 14853 >> phone: (607) 255-9645 >> >> >> >> On Jan 4, 2011, at 4:37 AM, jeramy mendoza wrote: >> >> > All, >> > >> > Hi. Can Matpower do powerflow analysis on an AC-DC system with an HVDC >> link? If not, how can we modify it to take into account an HVDC link? >> Thanks. >> > >> > Jem >> >> >> >> > <ac-dc powerflow.rar> > > >
