You can find isolated buses using the find_islands() 
<http://www.pserc.cornell.edu/matpower/docs/ref/matpower6.0b1/find_islands.html>
 function. Isolated buses should be marked as such in the BUS_TYPE column of 
the bus matrix. It should not be necessary to explicitly take isolated 
generators off-line.

    Ray


> On Aug 2, 2016, at 10:56 AM, kin maxe <[email protected]> wrote:
> 
> Thanks for your reply. And one more question concerning the reliability 
> assessment, when I simulate certain contingency in which cases I have some 
> isolated buses, the OPF will stop work. I try several approach to solve but 
> all failed, do you have any suggestion?
> 
> 2016-08-02 16:41 GMT+02:00 Ray Zimmerman <[email protected] 
> <mailto:[email protected]>>:
> See the recent thread on this topic …
> 
> http://www.mail-archive.com/[email protected]/msg05303.html 
> <http://www.mail-archive.com/[email protected]/msg05303.html>
> 
>  — Ray
> 
> (not sure why, but it appears some messages are missing from the archive … 
> looking into it)
> 
>> On Aug 2, 2016, at 6:25 AM, kin maxe <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> Dear Matpower community,
>> 
>> I want to perform an OPF of load shedding in power system reliability 
>> analysis. But I got stuck with the cost function of OPF. How should I 
>> structure the cost matrix?
>> 
>> Best wishes,
>> Maxence Zhang
> 
> 

Reply via email to