Is it convex your cost function? The system converges with "pf"?

El lunes, 30 de junio de 2014, Fereshteh Moghateli <[email protected]>
escribió:

> excuse me, I have another question , I *have to* run opf from a 56 node
> distribution feeder that there isn't any generator or DG.  then I define
> mpc.gen only for node1(ref node) and define a cost function with one row
> for this node. but I don’t know why opf dosn’t converge? Is the problem
> coefficients of quadratic equation? If yes, how much is range of this
> coefficient in distribution feeder?
>
>
> On Mon, Jun 30, 2014 at 5:51 AM, Fereshteh Moghateli <
> [email protected]
> <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote:
>
>> no matter, i can run opf with newton's method.
>>
>>
>> On Mon, Jun 30, 2014 at 3:25 AM, Abhyankar, Shrirang G. <
>> [email protected] <javascript:_e(%7B%7D,'cvml','[email protected]');>
>> > wrote:
>>
>>> PF_MAX_IT_FD option sets the number of iterations for the 'fast
>>> decoupled' algorithm. Are you setting the PF_ALG option to select the fast
>>> decoupled AC power flow?
>>>
>>> Shri
>>>
>>> > On Jun 29, 2014, at 12:37 PM, "Fereshteh Moghateli" <
>>> [email protected]
>>> <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote:
>>> >
>>> > hi
>>> > how can increase number of iteration in matpower?when i use
>>> ''PF_MAX_IT_FD'' , number of iterations don't change.
>>>
>>>
>>>
>>
>

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