Thanks for the answer Robert. 

Actually I thought the same, but I heard there are custom modifications on 
Matpower to extend it for three phase simulation.
Anyone has any knowledge on that?

Kind Regards,
Theofilos

On 01/16/14, Robert Spiewak  <[email protected]> wrote:

> Yes and no.  
> 
> I tryied what you sugest but it did not work.  It is just too many 
> diferences.  I am doing it in steps now as I could not make Matpower to work 
> for me.
> 
> You need to have system description in a phase frame of reference and then 
> you need to modyfy code to calculate in a phase frame of reference.
> See Arrillaga/Arnold book for details.
> Radial systems are much cleaner/easier if you can just focus on them, but NR 
> and L methods are time consuming to develope and test.
> 
> Good luck!
> 
> Best Regards,
> 
> Robert Spiewak
> (Sent from Remote)
> 
> > On Jan 16, 2014, at 7:01, Theofilos Xanthos 
> > <[email protected]> wrote:
> > 
> > Dear all,
> > 
> > I would like to use Matpower for unbalanced three phase distribution 
> > systems, state estimation programming.  
> > 
> > Since Matpower only uses one phase equivalents, can any modification be 
> > done to a case file to represent a 
> > three phase unbalanced system. For example, have three 0,+120,-120 degrees 
> > reference bus nodes instead of one, and then solve 
> > the state estimation problem on 3 radial topologies interconnected by 
> > mutual coupling terms? 
> > I am quite an amateur in Matpower, just starting now to understand its 
> > mechanics.
> > 
> > Kind Regards,
> > Theofilos
> > 


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