I’m not sure I understand the question … extract_islands() creates the mpc of
each island for you.
Ray
> On Dec 13, 2016, at 2:27 PM, Andrey Vieira <[email protected]> wrote:
>
>
> Thank you, Mr. Ray. How should I proceed with the insertion of the islands?
> For example in case 33 buses, I will extract the subsystems from bar 2 to 22
> (branches: 2-19 ; 19-20; 20-21 and 21-22). How would the mpc matrix be for
> such a situation?
>
>
> De: [email protected]
> <mailto:[email protected]>
> <[email protected]
> <mailto:[email protected]>> em nome de Ray Zimmerman
> <[email protected] <mailto:[email protected]>>
> Enviado: terça-feira, 13 de dezembro de 2016 13:48
> Para: MATPOWER discussion forum
> Assunto: Re: Operation of the load flow for isolated sections - MATPOWER
>
> If the isolated portions have adequate generation to operate as an island,
> then the only thing necessary is to make sure that each island has its own
> reference bus. In your case, however, I suppose there are de-energized
> sections. MATPOWER does not automatically handle the de-energized sections,
> so you will have to extract the section that is still live using
> extract_islands()
> <http://www.pserc.cornell.edu//matpower/docs/ref/matpower6.0b2/extract_islands.html>,
> then only run the power flow on that island.
>
> Ray
>
>
>> On Dec 12, 2016, at 2:33 PM, Andrey Vieira <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>>
>> Good afternoon people! By performing load flow tests in IEEE radials
>> feeders cases,
>> such as 33, 69, 84 bars, I noticed that the study does not work when I leave
>> isolated
>> sections (eg in the case 33 buses, runpf('case33'), opening section 3-23
>> causes error). Is there any
>> way in MATPOWER to perform load flow tests with isolated branches?
