Hi, Ray.

Thank you for the suggestion




*Engr. AHMAD, Abubakar Sadiq**PhD Student*

*Electrical Engineering.*

*Bayero University, Kano. Nigeria.*

*OR*


*LecturerElectrical and Electronics Engineering,*

*Federal University of Technology,*

*P.M.B, 65, Minna.*
*Nigeria*.
*+2347068043665*

On Thu, May 11, 2017 at 1:56 PM, Ray Zimmerman <[email protected]> wrote:

> Thanks Ahmad for being willing to contribute, and thanks Shri for coaching
> him on the process.
>
> Ahmad, yes, each of the 2 events will need both an event function to
> detect the event, and a corresponding callback function to handle the
> event. In my opinion cpf_nose_event() and cps_nose_event_cb() are
> probably the simplest to use as templates.
>
> On another note, let’s move any further discussion of this implementation
> to the MATPOWER-DEV-L list
> <http://www.pserc.cornell.edu/matpower/mailinglists.html#devlist>.
>
> Thanks,
>
>     Ray
>
>
> On May 10, 2017, at 1:55 PM, Abhyankar, Shrirang G. <[email protected]>
> wrote:
>
> Thanks for agreeing to contribute your code. I believe it would be a great
> addition to MATPOWER’s CPF.
>
> It would be good if you can write separate functions for each event type.
> If its too much for you, then you can write one event function for now. We
> can work on splitting it later.
>
> Shri
>
> From: Ahmad Sadiq Abubakar <[email protected]>
> Reply-To: MATPOWER discussion forum <[email protected]>
> Date: Wednesday, May 10, 2017 at 12:15 PM
> To: MATPOWER discussion forum <[email protected]>
> Subject: Re: CPF termination
>
> Hi Shrirang,
> Thanks once again.
> Yes, I will be honoured to contribute my codes to matpower once it's ready.
> To implement my written event function for cpf termination, (e.g.
> cpf_Vlimit_event or cpf_Llimit_event) does each of these need a separate
> callback function?
>
> Alternatively, I thought of implementing this in similar manner as the
> cpf.enforce_q_lims. Kindly advice
>
> On May 10, 2017 5:25 PM, "Abhyankar, Shrirang G." <[email protected]> wrote:
>
>> Hi Ahmad,
>>   If you are referring to cpf_default_callback.m then NO, you do need to
>> modify it. The callback function(s) are basically “post-step” that do not
>> alter the cpf. They are meant to be used for tracking system states for
>> logging, visualization, or other similar needs.
>>
>> Would you be willing to contribute your code to MATPOWER? I can work with
>> you on cleaning up the code once it is ready.
>>
>> Thanks,
>> Shri
>>
>>
>> From: Ahmad Sadiq Abubakar <[email protected]>
>> Reply-To: MATPOWER discussion forum <[email protected]>
>> Date: Wednesday, May 10, 2017 at 7:44 AM
>> To: MATPOWER discussion forum <[email protected]>
>> Subject: Re: CPF termination
>>
>> Hi Shrirang,
>>
>> Thank you for the insight. I try to use cpf_target_lam_event as template,
>> do I also need to write a callback function for my Vlimts and Llimits
>> event? or modify the default callback function for cpf termination?
>>
>> Kindly excuse my too basic questions, I am novice in coding.
>>
>> In anticipation of your reply
>>
>>
>> On Apr 25, 2017 6:45 PM, "Abhyankar, Shrirang G." <[email protected]>
>> wrote:
>>
>>> Ahmad,
>>>   You need to implement an event function (see section 5.5 of the
>>> manual) for cpf with logic on how you want cpf to terminate. There are a
>>> few event functions currently implemented — nose point detection, target
>>> limit, active/reactive power limits — but there is no user-defined event
>>> function support yet. So, here’s what you’ll need to do:
>>>
>>> i) Use cpf_nose_event.m or cpf_target_lam_event as a template to write
>>> your own event function.
>>> I) Modify runcpf code to register your event function (see lines 173-190
>>> on how different event functions are registered).
>>>
>>> Let us know if you need more help.
>>>
>>> Shri
>>>
>>> From: Ahmad Sadiq Abubakar <[email protected]>
>>> Reply-To: MATPOWER discussion forum <[email protected]>
>>> Date: Tuesday, April 25, 2017 at 1:22 PM
>>> To: "[email protected]" <[email protected]>
>>> Subject: CPF termination
>>>
>>> Hi,
>>> I want to run cpf such that, it stops either at Vmax, Vmin, or ratedA,
>>> ratedB and ratedC. In other words, cpf termination should respect bus
>>> voltage limits and line thermal limit constraints.
>>>
>>> Kindly assist on how to implement the codes.
>>>
>>>
>

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