Hello everyone,
I am working on the radial distribution network.
CASE I - mpc=loadcase(case18);
mpopt=mpoption('pf.alg','PQSUM');
results=radial_pf(mpc,mpopt);
CASE II - mpc=loadcase(case18);
results=runpf(mpc);
When i am running the above two case and both are giving the same results
for power loss and voltage.
I want to know what is the difference between the above two case?
On Fri, Mar 24, 2017 at 10:37 AM, Akash Tyagi <akashtyagi0...@gmail.com>
wrote:
> Thanku very much sir.
>
> On Thu, Mar 23, 2017 at 10:18 PM, Marwan Ahmed Al_asali <
> ma734...@gmail.com> wrote:
>
>> Hello sir,
>> I just want to ask you for optimization by matlab
>>
>>
>> On 23 March 2017 at 21:56, Ray Zimmerman <r...@cornell.edu> wrote:
>>
>>> The savecase() function is used to create a MATPOWER case file from a
>>> case struct. For example, suppose you want to take an existing case file,
>>> say case30.m, and apply a set of changes to it using apply_changes()
>>> and save the result as a new MATPOWER case file called case30new.m. You
>>> could do it with the following code …
>>>
>>> mpc0 = loadcase('case30');
>>> mpc = apply_changes(label, mpc0, chgtab);
>>> savecase('case30new', mpc);
>>>
>>> Now you can use case30new as you would any of the included cases. E.g.
>>>
>>> r = runopf('case30new');
>>>
>>> Hope this helps,
>>>
>>> Ray
>>>
>>>
>>> On Mar 22, 2017, at 1:41 AM, Akash Tyagi <akashtyagi0...@gmail.com>
>>> wrote:
>>>
>>> Hello sir,
>>> I just want to ask you a silly question..
>>> I tried a lot, but i m not able to understand, hoe the savecase function
>>> work.?
>>> Can you please explain with an appropriate exapmle.?
>>>
>>> On Tue, Mar 21, 2017 at 9:29 PM, Ray Zimmerman <r...@cornell.edu> wrote:
>>>
>>>> At the moment, there is only the MATPOWER
>>>> <http://www.pserc.cornell.edu/matpower/docs/MATPOWER-manual-6.0.pdf>
>>>> and MOST User’s Manuals
>>>> <http://www.pserc.cornell.edu/matpower/docs/MOST-manual-1.0.pdf>, the
>>>> built-in help for each function (also available in the Online Function
>>>> Reference <http://www.pserc.cornell.edu/matpower/docs/ref/>), and
>>>> finally the code itself, especially the examples and tests.
>>>>
>>>> I realize this is sometimes still inadequate, and I welcome
>>>> contributions from others to improve the documentation.
>>>>
>>>> Were you able to get your load profile working as you expect? Section
>>>> 5.1.6 in the MOST User’s Manual should have the details, but you’ll also
>>>> need to be familiar with MATPOWER's apply_changes()
>>>> <http://www.pserc.cornell.edu/matpower/docs/ref/matpower6.0/apply_changes.html>
>>>> function, described in Section 9.3.5 of the MATPOWER User’s Manual.
>>>>
>>>> Feel free to continue to ask specific questions here. And once you
>>>> understand how it works, if you have suggestions for changes to the
>>>> documentation that would help point others in the right direction, that’d
>>>> be appreciated.
>>>>
>>>> Ray
>>>>
>>>>
>>>>
>>>> On Mar 21, 2017, at 7:48 AM, Akash Tyagi <akashtyagi0...@gmail.com>
>>>> wrote:
>>>>
>>>> Hello sir,
>>>> Is there any other reference book of MATPOWER, in which the detailed
>>>> information is given...?
>>>> Thanks.
>>>>
>>>> On Mon, Mar 20, 2017 at 9:00 PM, Ray Zimmerman <r...@cornell.edu>
>>>> wrote:
>>>>
>>>>> Sorry, that was supposed to be …
>>>>>
>>>>> loadprofile.values(:, 1, :) = [
>>>>> 100 120 110;
>>>>> 120 140 125;
>>>>> 150 150 135;
>>>>> 140 155 130;
>>>>> …
>>>>> ]
>>>>>
>>>>> On Mar 17, 2017, at 8:45 PM, 田其生 <921542...@qq.com> wrote:
>>>>>
>>>>> Dear Ray
>>>>> thanks for your help. I may know the direction about how to set
>>>>> the load profiles.yet，there may be something wrong in the example which
>>>>> provied in the e-mail. In the example,the dimension of
>>>>> loadprofile.values(:,
>>>>> 1, 1)(it is 1) doesn't match the dimension of load-martrix(it is 2).
>>>>> when I change the loadprofile.values(:, 1, 1) to loadprofile.values(:,
>>>>> :, 1) or loadprofile.values(:, :, 1 ,1)，although the dimension
>>>>> matched,the MOST alos will give me an eeror(loadmd: scenarios
>>>>> dimension of profiles(1).values (2) must be 1 or nj_max = 1).
>>>>> Is there anything I forget to set?
>>>>> the attachment is the program which i rewrited.
>>>>>
>>>>> thanks
>>>>> Tian
>>>>> March 18, 2017
>>>>>
>>>>>
>>>>> ------------------ 原始邮件 ------------------
>>>>> *发件人:* "Ray Zimmerman";<r...@cornell.edu>;
>>>>> *发送时间:* 2017年3月17日(星期五) 晚上11:05
>>>>> *收件人:* "MATPOWER Discussion List"<matpower-l@cornell.edu>;
>>>>> *主题:* Re: Question about how to set load-profile in dynamic optimal
>>>>> power fow
>>>>>
>>>>> The example in most_ex5_mpopf()
>>>>> <http://www.pserc.cornell.edu/matpower/docs/ref/matpower6.0/most/t/most_ex5_mpopf.html>
>>>>> uses
>>>>> the load profile from ex_load_profile()
>>>>> <http://www.pserc.cornell.edu/matpower/docs/ref/matpower6.0/most/t/ex_load_profile.html>
>>>>> which
>>>>> scales all loads at the same time (since rows is set to 0). If you
>>>>> want to scale loads individually, you need to set rows to a vector of
>>>>> bus indices and add columns for each to the values field. For
>>>>> example, a load profile with something like the following, would scale
>>>>> loads at buses 1, 3 and 5 according to the values in the 3 columns of the
>>>>> values field ...
>>>>>
>>>>> loadprofile = struct( ...
>>>>> 'type', 'mpcData', ...
>>>>> 'table', CT_TLOAD, ...
>>>>> 'rows', [1 3 5], ...
>>>>> 'col', CT_LOAD_ALL_PQ, ...
>>>>> 'chgtype', CT_REP, ...
>>>>> 'values', [] );
>>>>> loadprofile.values(:, 1, 1) = [
>>>>> 100 120 110;
>>>>> 120 140 125;
>>>>> 150 150 135;
>>>>> 140 155 130;
>>>>> ...
>>>>> ]
>>>>>
>>>>> You can also scale the load by areas, as opposed to by individual
>>>>> load, by setting table to 'CT TAREALOAD’.
>>>>>
>>>>> Hope this helps,
>>>>>
>>>>> Ray
>>>>>
>>>>>
>>>>> On Mar 14, 2017, at 9:57 PM, 田其生 <921542...@qq.com> wrote:
>>>>>
>>>>> Dear all
>>>>> I need help about dealing with the dynamic optimal power flow
>>>>> through most. if there are not only one bus load which are varying with
>>>>> time,how to set the load-profile (for example in ex_load_profile).It will
>>>>> be much better and clearer,if i get a simple example.
>>>>>
>>>>> thanks
>>>>>
>>>>> Qisheng Tian
>>>>>
>>>>> March 15, 2017
>>>>>
>>>>>
>>>>> <matlab.zip>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>
