The voltage limits are respected by the OPF, but the power flow is a simple power flow that does not include automatic adjustment of controls to attempt to satisfy voltage or other limits.
Ray > On May 17, 2017, at 6:28 AM, Akash Tyagi <[email protected]> wrote: > > I have one more query. > I have set the limit of voltage in the case. > If any voltage violates its limits after running the Power flow. > What is the need of putting the limit in the case, if it is exceeding its min > nad max mimit? > > On Wed, May 17, 2017 at 3:14 PM, Bone, Gorazd <[email protected] > <mailto:[email protected]>> wrote: > There are a few ways to calculate the taps/phases as far as I know, but I was > unable to find some method that is very distinguished and well established. > One of the method that I found is attached in the pdf, you can download the > pdf or google "Duško Nedič Tap adjustments". > > We are currently working on a method right now in our lab and, since we will > be using MatPower, will be able to provide it once its finished. > Od: [email protected] > <mailto:[email protected]> > [[email protected] > <mailto:[email protected]>] v imenu Akash Tyagi > [[email protected] <mailto:[email protected]>] > Poslano: 17. maj 2017 10:55 > > Za: MATPOWER discussion forum > Zadeva: Re: Setting the initial values for the variables? > > then how we can calculate the tap settings? > Is there any way to calculate the transformer tap settings? > > > On Wed, May 17, 2017 at 2:21 PM, Bone, Gorazd <[email protected] > <mailto:[email protected]>> wrote: > The tap settings are provided in the case data. Look at the mpc.branch. There > you provide all the branch data, including taps and phases of transformers. > > MatPower however does not calculate the taps, if this is what you're asking. > You must provide the taps. > > > Od: [email protected] > <mailto:[email protected]> > [[email protected] > <mailto:[email protected]>] v imenu Akash Tyagi > [[email protected] <mailto:[email protected]>] > Poslano: 17. maj 2017 10:44 > Za: MATPOWER discussion forum > Zadeva: Re: Setting the initial values for the variables? > > Hello everyone, > Is there any option in MATPOWER to set the transformer tap settings, and if > it is then how we can set the settings and after running power flow, how > these settings are extracted from the results? > Please help. > > On Wed, May 17, 2017 at 12:10 PM, Bone, Gorazd <[email protected] > <mailto:[email protected]>> wrote: > That's really simple. Thank you. > > > Od: [email protected] > <mailto:[email protected]> > [[email protected] > <mailto:[email protected]>] v imenu Ray Zimmerman > [[email protected] <mailto:[email protected]>] > Poslano: 16. maj 2017 21:10 > Za: MATPOWER discussion forum > Zadeva: Re: Setting the initial values for the variables? > > Since the results struct is a super-set of the input mpc, you can just use it > directly as input. > > E.g. > > r1 = runpf(mpc); > r2 = runpf(r1); > > When in doubt … just try it ;-) > > Ray > > >> On May 16, 2017, at 5:58 AM, Bone, Gorazd <[email protected] >> <mailto:[email protected]>> wrote: >> >> Hello >> >> I wonder if it is possible to input the initial conditions of one load flow >> calculation into another load flow calculation. >> In trying to develop a method that calculates the taps and phases of >> transformer, so I have to repeatedly perform Load Flow calculations one >> after another and iterate the changes in taps and phases. I believe it will >> be faster if I the results from one iteration are used as initial values in >> the concurrent iteration. I was wondering if there is a built in way to do >> that and if not, how can I do it. >> >> Regards, Gorazd > > > >
