With a power flow (as opposed to OPF), the dispatch of each generator (except
slack, which is typically the substation in a distribution system), including
DGs is specified as an input. So if you want the DG dispatch to change as load
changes you will have to specify the dispatch changes explicitly.
Ray
> On Feb 9, 2019, at 5:36 AM, Aamir Nawaz <[email protected]> wrote:
>
> Dear Amir al hosseni,
> Thanks for your kind response. But i am sorry that you didnt understand my
> question. Please see distribution system cases like case33bw.m and try to add
> DGs to them. Most of load is take up by first generator while doing runpf.
> This makes other DGs to have static output power and only 1st generator
> output is changing to satisfy demand. You can change load to see change in
> 1st generator output. Please study this and i hope you will understand what i
> wanted to ask. Thanks.
>
>
> Regards,
> Aamir Nawaz
>
>
> On Saturday, February 2, 2019, 10:53:04 AM GMT+8, amir ali Hosseini
> <[email protected]> wrote:
>
>
> hi
> you shold read document MATPOWER
> but so
> Are you Mathpower add path to the Matlab?!if yes?! So!
> frist you shold chose the case . for example case 9 that means it has 9bus
> In command window typeing
> mpc=loadcase('case9');
> Results = runpf(mpc);
> It was simple isn't it?!
>
>
> On Fri, Feb 1, 2019, 19:07 Ray Zimmerman <[email protected]
> <mailto:[email protected]> wrote:
> If you have islands, each island must have it’s own slack bus.
>
> Ray
>
>
>> On Jan 27, 2019, at 1:12 AM, Aamir Nawaz <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Dear Dr. Ray,
>> Thanks for your kind response. I am still unable to understand how to
>> execute opf or pf for distribution system while adding some DGs on other
>> feeders than slack bus. Please share some example where DGs connected within
>> the distribution system is supplying power to load, particularly in case of
>> islanding. I hope you understood my problem and help me solve this. Thanks
>> again.
>>
>>
>> Regards,
>> Aamir Nawaz
>> On Friday, January 11, 2019, 6:49:00 AM GMT+8, Ray Zimmerman
>> <[email protected] <mailto:[email protected]>> wrote:
>>
>>
>> If you are running an OPF, it will take the least expensive generation it
>> can. Maybe check the relative costs?
>>
>> Ray
>>
>>> On Jan 3, 2019, at 10:46 PM, Aamir Nawaz <[email protected]
>>> <mailto:[email protected]>> wrote:
>>>
>>> Dear Dr. Ray,
>>> I want to execute IEEE 13 bus distribution system with distributed
>>> generations (DG, wind farm, pv etc). I have added generators but it always
>>> take power from generator at slack bus but not others. Please guide me how
>>> to add DG in distribution system at different nodes.
>>>
>>> Regards,
>>> Aamir Nawaz.
>>> <case13bw.m>
>>
>
