RE: difference between runpf() and runopf()

[Sarmad Hanif]

runpf runs the power flow --> finding voltage magnitude and angles for given 
values of P and Q (simplified explanation)
runopf runs the optimal power flow --> optimizing the power flowing in the grid 
to achieve a minimized generation cost (simplified explanation)
Check the matpower manual for more detail.

Losses can be calculated using both power flow and optimal power flow.
You can obtain losses using get_losses() function.
From: bounce-121663095-74036...@list.cornell.edu 
[mailto:bounce-121663095-74036...@list.cornell.edu] On Behalf Of Roshani Thapa
Sent: Tuesday, 18 July, 2017 10:34 AM
To: MATPOWER-L@cornell.edu
Subject: difference between runpf() and runopf()

What is the difference between runpf() and runopf()? i am using GA for an 
optimisation problem. i want to calculate the 24hours I2R loss(which is my 
fitness function) of a radial feeder using forecasted hourly load profile. Then 
Running matlab GA to minimise I2R loss will result a hourly switching schedule 
of feeder capacitors. which fxn do i need to call for power flow runpf() or 
runopf() to calculate loss inside fitness function?
--
With Regards,
Roshani Thapa
Electrical Engineer,
Chuhawat Niyantran Mahasakha,
Nepal Electricity Authority.

Re: DC Stated Estimation for calculation of Active Power Flow

[Saeed Ahmed]

​Sir,
Here i try to elaborate my question for your kind guidance

I want to solve a non linear (AC Power Flow ) Problem using DC
approximation (linear) method  which gives estimations of lines power flows
on AC power systems.It is  non-iterative and absolutely convergent but less
accurate than AC Load Flow (ACLF) solutions. DC approximation looks only at
active power flows and neglects reactive power flows

I want to simplify the nonlinear model of the AC system  to a linear form
through these assumptions
• Line resistances (active power losses) are negligible i.e. R<<  X.
• Voltage angle differences are assumed to be small i.e. sin(h) = h and
cos(h) = 1.
• Magnitudes of bus voltages are set to 1.0 per unit (flat voltage
profile).
• Tap settings are ignored.
 ​

Regards
Saeed Ahmed


On 17 July 2017 at 23:41, Ray Zimmerman  wrote:

> You can solve the DC power flow using rundcpf(). And MATPOWER does not
> include a “WLS” function, so I’m not sure what you are referring to there.
>
> Ray
>
> > On Jul 17, 2017, at 9:34 AM, Saeed Ahmed 
> wrote:
> >
> > Hi every one
> >
> > I need help for solving DC power flow using WLS function. I have tried
> following and need guidance for developing it further.
> >
> > 
> 
> > cd = loadcase('case4gs');
> > casesystem = size(cd.bus, 1);
> > cd.bus(:,6) = zeros(length(cd.bus(:,6)), 1)
> > cd.branch((cd.branch(:,9) ~= 0),9) = zeros(size(cd.branch((cd.branch(:,9)
> ~= 0),9)));
> > pfres = runpf(cd);
> >
> > TCL MERGE ERROR ( 07/17/2017 10:41:24 ): "invalid command name
> "Importing""
> OutmailID: 121661759, List: 'matpower-l', MemberID: 78104594
> SCRIPT: "Importing line Data > linedata = cd.branch(:, 1:6); % Calling
> "linedata6.m" for Line Data... > linedata(:,6) = ones(size(linedata, 1),1);
> > fb = linedata(:,1); % From bus number... > tb = linedata(:,2); %
> To bus number... > r = linedata(:,3);  % Resistance, R... > x =
> linedata(:,4);  % Reactance, X... > b = linedata(:,5)./2;   % Ground
> Admittance, B/2... > a = linedata(:,6);  % Tap setting value.. %Assumed
> 1 >  > y = 1./(r + 1j*x); >  > nbus = max(max(fb),max(tb));% no. of
> buses... > nbranch = length(fb);   % no. of branches...¨ >  >"
>  Formation of Y-Bus(Admittance) Matrix
> > ybus = zeros(nbus,nbus);% Initialise YBus...
> >  % Formation of the Off-Diagonal Elements...
> >  for k=1:nbranch
> >  ybus(fb(k),tb(k)) = ybus(fb(k),tb(k))-y(k)/a(k);
> >  ybus(tb(k),fb(k)) = ybus(fb(k),tb(k));
> >  end
> >  % Formation of Diagonal Elements...
> >  for m =1:nbus
> >  for n =1:nbranch
> >  if fb(n) == m
> >  ybus(m,m) = ybus(m,m) + y(n)/(a(n)^2) + 1j*b(n);
> >  elseif tb(n) == m
> >  ybus(m,m) = ybus(m,m) + y(n) + 1j*b(n);
> >  end
> >  end
> >  end
> >  ybus
> >
> >  TCL MERGE ERROR ( 07/17/2017 10:41:24 ): "extra characters after
> close-quote"
> OutmailID: 121661759, List: 'matpower-l', MemberID: 78104594
> SCRIPT: "Formation of B-Bus >   >  Bp=-imag(ybus-diag(sum(ybus))); >
> Bpp=imag(ybus) > **
> ** >
>  > Regards > Saeed Ahmed >
> --Apple-Mail=_7E621648-30BB-424D-B739-B09FEBED71AC
> Content-Transfer-Encoding: quoted-printable Content-Type: text/html;
> charset="utf-8"   content="text/html charset=utf-8">You can solve the DC power flow using  face="Courier" class="">rundcpf(). And MATPOWER does not include a
> “WLS” function, so I’m not sure what you are referring to there. class=""> 
> Ray class="">On Jul 17, 2017, at 9:34 AM, Saeed Ahmed  href="mailto:saeed.ahme...@gmail.com; class="">saeed.ahme...@gmail.com
> wrote: dir="ltr" class="">Hi every one class="gmail_default" style="font-family: tahoma, sans-serif; font-size:
> small;">I need help for solving DC power
> flow using WLS function. I have tried following and need guidance for
> developing it further. class="gmail_default" style="font-family: tahoma, sans-serif; font-size:
> small;">
>  class="gmail_default">cd = loadcase('case4gs'); class="gmail_default">casesystem =
> size(cd.bus, 1);cd.bus(:,6) = zeros(length(cd.bus(:,6)),
> 1) class="">cd.branch((cd.branch(:,9) ~= 0),9) = 
> zeros(size(cd.branch((cd.branch(:,9)
> ~= 0),9)));pfres = runpf(cd); class="gmail_default"> class="">"
>  Importing line Data face="tahoma, sans-serif" class="">linedata = cd.branch(:, 1:6); % Calling
> "linedata6.m" for Line Data... face="tahoma, sans-serif" class="">linedata(:,6) = ones(size(linedata,
> 1),1);fb = linedata(:,1);   % From bus
> number...tb = linedata(:,2);   % To bus
> number...r = linedata(:,3);   % Resistance,
> R... class="">x = linedata(:,4);   % Reactance,
> X... class="">b = linedata(:,5)./2;  % Ground 

difference between runpf() and runopf()

[Roshani Thapa]

What is the difference between runpf() and runopf()? i am using GA for an
optimisation problem. i want to calculate the 24hours I2R loss(which is my
fitness function) of a radial feeder using forecasted hourly load profile.
Then Running matlab GA to minimise I2R loss will result a hourly switching
schedule of feeder capacitors. which fxn do i need to call for power flow
runpf() or runopf() to calculate loss inside fitness function?
-- 
With Regards,
Roshani Thapa
Electrical Engineer,
Chuhawat Niyantran Mahasakha,
Nepal Electricity Authority.

code

[Marwan Ahmed Al_asali]

I need this code   by matlab IEEE 68-Bus power system ...

Re: DC Power Flow

[Marwan Ahmed Al_asali]

I need code to perform of TWO-AREA
 power SYSTEMS

On 17 July 2017 at 19:29, Saeed Ahmed  wrote:

> Respected Jose Luis Marín
>
> Thanks for you guidance. I will try to be more precise and specific here.
>
>
> Regards
> Saeed Ahmed
> PhD Student
> University of Ulsan, Republic of  Korea
>
> On 17 July 2017 at 22:30, Jose Luis Marín  wrote:
>
>> I don't mean to be disrespectful, but you should probably read this first:
>>
>>http://www.catb.org/esr/faqs/smart-questions.html
>>
>> Your question is way too broad and vague.
>>
>> --
>> Jose L. Marin
>> Grupo AIA
>>
>>
>>
>> 2017-07-17 15:21 GMT+02:00 Saeed Ahmed :
>>
>>> I need to perform DC State Estimation and calculate the Real Power Flow
>>> in the lines. Need help please.
>>>
>>>
>>>
>>>
>>> Regards
>>> Saeed Ahmed
>>>
>>>
>>
>

Re: DC Stated Estimation for calculation of Active Power Flow

[Ray Zimmerman]

You can solve the DC power flow using rundcpf(). And MATPOWER does not include 
a “WLS” function, so I’m not sure what you are referring to there.

Ray

> On Jul 17, 2017, at 9:34 AM, Saeed Ahmed  wrote:
> 
> Hi every one 
> 
> I need help for solving DC power flow using WLS function. I have tried 
> following and need guidance for developing it further.
> 
> 
> cd = loadcase('case4gs');
> casesystem = size(cd.bus, 1);
> cd.bus(:,6) = zeros(length(cd.bus(:,6)), 1)
> cd.branch((cd.branch(:,9) ~= 0),9) = zeros(size(cd.branch((cd.branch(:,9) ~= 
> 0),9)));
> pfres = runpf(cd);
> 
> TCL MERGE ERROR ( 07/17/2017 10:41:24 ): "invalid command name "Importing""
OutmailID: 121661759, List: 'matpower-l', MemberID: 75174736
SCRIPT: "Importing line Data > linedata = cd.branch(:, 1:6); % Calling 
"linedata6.m" for Line Data... > linedata(:,6) = ones(size(linedata, 1),1); > 
fb = linedata(:,1); % From bus number... > tb = linedata(:,2); % To bus 
number... > r = linedata(:,3);  % Resistance, R... > x = linedata(:,4); 
 % Reactance, X... > b = linedata(:,5)./2;   % Ground Admittance, B/2... > a = 
linedata(:,6);  % Tap setting value.. %Assumed 1 >  > y = 1./(r + 1j*x); >  
> nbus = max(max(fb),max(tb));% no. of buses... > nbranch = length(fb); 
  % no. of branches...¨ >  >"
 Formation of Y-Bus(Admittance) Matrix
> ybus = zeros(nbus,nbus);% Initialise YBus... 
>  % Formation of the Off-Diagonal Elements...
>  for k=1:nbranch
>  ybus(fb(k),tb(k)) = ybus(fb(k),tb(k))-y(k)/a(k);
>  ybus(tb(k),fb(k)) = ybus(fb(k),tb(k));
>  end
>  % Formation of Diagonal Elements...
>  for m =1:nbus
>  for n =1:nbranch
>  if fb(n) == m
>  ybus(m,m) = ybus(m,m) + y(n)/(a(n)^2) + 1j*b(n);
>  elseif tb(n) == m
>  ybus(m,m) = ybus(m,m) + y(n) + 1j*b(n);
>  end
>  end
>  end
>  ybus
>  
>  TCL MERGE ERROR ( 07/17/2017 10:41:24 ): "extra characters after close-quote"
OutmailID: 121661759, List: 'matpower-l', MemberID: 75174736
SCRIPT: "Formation of B-Bus >   >  Bp=-imag(ybus-diag(sum(ybus))); >  
Bpp=imag(ybus) > 

 >   > Regards > Saeed Ahmed >
--Apple-Mail=_7E621648-30BB-424D-B739-B09FEBED71AC Content-Transfer-Encoding: 
quoted-printable Content-Type: text/html;charset="utf-8"  You can solve the DC power flow using rundcpf(). And MATPOWER does not include a “WLS” 
function, so I’m not sure what you are referring to there.  RayOn 
Jul 17, 2017, at 9:34 AM, Saeed Ahmed mailto:saeed.ahme...@gmail.com; class="">saeed.ahme...@gmail.com 
wrote:Hi every oneI need help for solving DC power flow using WLS 
function. I have tried following and need guidance for developing it 
further.cd = loadcase('case4gs');casesystem = 
size(cd.bus, 1);cd.bus(:,6) = zeros(length(cd.bus(:,6)), 
1)cd.branch((cd.branch(:,9) ~= 0),9) = 
zeros(size(cd.branch((cd.branch(:,9) ~= 0),9)));pfres = 
runpf(cd);"
 Importing line Datalinedata = cd.branch(:, 1:6); % Calling "linedata6.m" for 
Line Data...linedata(:,6) = ones(size(linedata, 
1),1);fb = linedata(:,1);   % From bus 
number...tb = linedata(:,2);   % To bus 
number...r = linedata(:,3);   % Resistance, 
R...x = linedata(:,4);   % Reactance, 
X...b = linedata(:,5)./2;  % Ground Admittance, 
B/2...a = linedata(:,6);   % Tap setting value.. %Assumed 
1y = 1./(r + 1j*x);nbus = max(max(fb),max(tb));  % no. of 
buses...nbranch = length(fb);  % no. of 
branches...¨%% Formation of Y-Bus(Admittance) 
Matrixybus = zeros(nbus,nbus);% Initialise 
YBus...% Formation of the Off-Diagonal 
Elements...for k=1:nbranch  
ybus(fb(k),tb(k)) = ybus(fb(k),tb(k))-y(k)/a(k);  
ybus(tb(k),fb(k)) = ybus(fb(k),tb(k));end% Formation of Diagonal Elements...for m 
=1:nbus  for n =1:nbranch  
  if fb(n) == m  
ybus(m,m) = ybus(m,m) + y(n)/(a(n)^2) + 1j*b(n);  
  elseif tb(n) == m  
ybus(m,m) = ybus(m,m) + y(n) + 
1j*b(n);end  
endendybus%% Formation of B-BusBp=-imag(ybus-diag(sum(ybus)));Bpp=imag(ybus)RegardsSaeed Ahmed

Re: load2disp command

[Ray Zimmerman]

Did you check the help for the function (e.g. load2disp 
 in 
the online function reference)?

idx is simply a vector of bus indexes, in your case it should be simply be 
equal to 2 (a 1 x 1 vector).

   Ray




> On Jul 17, 2017, at 2:29 AM, Akash Tyagi  wrote:
> 
> Hello everyone,
> I am using load2disp command and I understand everything in that command 
> except the input index.
> Suppose I want to convert the fixed load to dispatchable load at bus 2 only.
> I tried by using the following command-
> clc
> clear
> close all;
> define_constants;
> mpc0=loadcase(case5a);
> idx1=mpc0.bus([2,3],PD);
> mpc1=load2disp(mpc0,'Akash',idx1);
> It is not working?
> Thanks in advance

Re: Get_losses

[Ray Zimmerman]

Actually, dloss_dV includes partials with respect to both voltage angle and 
voltage magnitude. But, yes, always check the help for the function in question 
by typing, for example, help get_losses, or by checking the online function 
reference Shri mentioned.

   Ray



> On Jul 15, 2017, at 11:48 AM, Abhyankar, Shrirang G.  wrote:
> 
> dloss_dv is the partial derivative of the losses w.r.t. voltage angle. It is 
> an optional output argument. If you do not need it then don’t use it.
>  
> FYI: MATPOWER has an online function reference 
>  where you can see the usage 
> of all of its functions. Suggest going through this first and then sending 
> questions to the list if something is not clear. Here’s the reference for the 
> get_losses 
>  
> function.
>  
> Shri
>  
> From:  > on behalf of Akash Tyagi 
> >
> Reply-To: MATPOWER discussion forum  >
> Date: Saturday, July 15, 2017 at 2:04 AM
> To: MATPOWER discussion forum  >
> Subject: Get_losses
>  
> Hello everyone, I am trying to use get_losses command and it's quite easy but 
> i am not getting one thing in that command,
> mpc=loadcase(case5);
> results=runpf(mpc);
> [loss,fchg,tchg,dloss_dv]=get_losses(results);
> what is 'dloss_dv' given means??

Re: How to change objective function of DC opf

[Ray Zimmerman]

If you want to use social welfare as the objective function, simply convert all 
loads to dispatchable loads. In that case, cost minimization, which now 
includes minimizing the negative costs (i.e. positive benefits) of the loads is 
actually minimizing the negative of the social welfare (or maximizing social 
welfare). The objective function value will be the negative of the total 
welfare.

Ray


> On Jul 14, 2017, at 12:45 PM, myvog...@gmail.com wrote:
> 
> Hi all,
> I am using Matpower to run a DC opf, if I want to change the objecive 
> function of opf, such as changing it to social welfare instead of cost. Can 
> anyone tell me how I can do this change in Matpower? Thanks so much.
> 
> Best Regards
> Stephanie

Re: Objective Functions

[Ray Zimmerman]

There is support for user-defined costs of the form described in section 6.3.1 
of the User’s Manual 
, but this 
does not include arbitrary non-linear cost functions. The intention is to 
include that in an upcoming version.

   Ray



> On Jul 15, 2017, at 11:55 AM, Abhyankar, Shrirang G.  wrote:
> 
> MATPOWER supports two types of generator cost curves: quadratic and 
> piece-wise linear. I don’t think there is support for user-defined cost 
> curves, Ray would be able to provide a more definitive answer. So, I think 
> there is an no easy way to implement the objective you need. You’ll need to 
> modify the MATPOWER code in order to implement what you want and there may be 
> substantial coding you may need to do.
>  
> Shri
>  
> From:  > on behalf of Akash Tyagi 
> >
> Reply-To: MATPOWER discussion forum  >
> Date: Saturday, July 15, 2017 at 8:10 AM
> To: MATPOWER discussion forum  >
> Subject: Re: Objective Functions
>  
> Yeah, 
> Thanks so much sir.
> Do you have any idea of how of to add valve point effect in the mpc.gencost 
> data?
> Presently, our Objective function is mainly a*P^2+b*P+c.
> But if we want to include the valve point effect i.e. 
> a*P(i)^2+b*P(i)+c+abs(e(i)*sin(f(i)(Pmin(i)-P(i))).
> Can this be added in the MATPOWER??
>  
> On Sat, Jul 15, 2017 at 6:25 PM, Sarmad Hanif  > wrote:
> I would not say real power minimization, I think it is better to say active 
> power cost minimization.
> From: bounce-121659167-74036...@list.cornell.edu 
>  
> [mailto:bounce-121659167-74036...@list.cornell.edu 
> ] On Behalf Of Akash Tyagi
> Sent: Saturday, 15 July, 2017 8:51 PM
> 
> To: MATPOWER discussion forum
> Subject: Re: Objective Functions
>  
> Thanks a lot.
> It is working now.
> The last thing I want to ask is if we don't add reactive cost data to case, 
> then it is considering only the real power minimization??
>  
> On Sat, Jul 15, 2017 at 6:01 PM, Sarmad Hanif  > wrote:
> From Generator Cost Data table of the MATPOWER manual:
> “If gen has ng rows, then the first ng rows of gencost contain the costs for 
> active power produced by the
> corresponding generators. If gencost has 2ng rows, then rows ng + 1 through 
> 2ng contain the reactive
> power costs in the same format.”
>  
> Since there are only active power cost terms in the case file and you have 
> put all active power cost terms to zero, your cost function will evaluate to 
> zero.
> First add reactive power cost term rows and then specify their marginal 
> values to be able for MATPOWER to consider them.
> Hope it helps.
> Sarmad
>  
> From: bounce-121659136-74036...@list.cornell.edu 
>  
> [mailto:bounce-121659136-74036...@list.cornell.edu 
> ] On Behalf Of Akash Tyagi
> Sent: Saturday, 15 July, 2017 7:46 PM
> 
> To: MATPOWER discussion forum
> Subject: Re: Objective Functions
>  
> After putting the cost term of the real power to zero in the mpc.gencost 
> field, as attached the case below-
> Then after running the optimal power flow by using the following code-
> clc
> clear
> close all;
> define_constants;
> mpc=loadcase(newcase5);
> results=runopf(mpc);
> The objective function is coming zero.??
> I am not getting this??
>  
> On Sat, Jul 15, 2017 at 10:19 AM, Sarmad Hanif 
> > 
> wrote:
> Hi,
> Mr. Kardos already gave the references for you to explore the cost functions 
> in detail.
> A quick fix:
> If you just want to minimize reactive power, then just put cost terms of the 
> real power to zero in its approriate mpc.gencost field J
>  
> Btw, minimizing objective function can mean anything, as it depends on your 
> “function”. It cannot always mean considering only the reactive power, as you 
> mentioned in your previous email.
>  
> Thanks,
> Sarmad
>  
> From: bounce-121652404-74036...@list.cornell.edu 
>  
> [mailto:bounce-121652404-74036...@list.cornell.edu 
> ] On Behalf Of Akash Tyagi
> Sent: Wednesday, 12 July, 2017 4:59 PM
> To: MATPOWER discussion forum
> Subject: Re: Objective Functions
>  
> Hello,
> The obj_func mainly minimizes the cost including the real and reactive power.
> But I have to only minimize objective 

Re: DC Power Flow

[Saeed Ahmed]

Respected Jose Luis Marín

Thanks for you guidance. I will try to be more precise and specific here.


Regards
Saeed Ahmed
PhD Student
University of Ulsan, Republic of  Korea

On 17 July 2017 at 22:30, Jose Luis Marín  wrote:

> I don't mean to be disrespectful, but you should probably read this first:
>
>http://www.catb.org/esr/faqs/smart-questions.html
>
> Your question is way too broad and vague.
>
> --
> Jose L. Marin
> Grupo AIA
>
>
>
> 2017-07-17 15:21 GMT+02:00 Saeed Ahmed :
>
>> I need to perform DC State Estimation and calculate the Real Power Flow
>> in the lines. Need help please.
>>
>>
>>
>>
>> Regards
>> Saeed Ahmed
>>
>>
>

DC Stated Estimation for calculation of Active Power Flow

[Saeed Ahmed]

Hi every one

I need help for solving DC power flow using WLS function. I have tried
following and need guidance for developing it further.


cd = loadcase('case4gs');
casesystem = size(cd.bus, 1);
cd.bus(:,6) = zeros(length(cd.bus(:,6)), 1)
cd.branch((cd.branch(:,9) ~= 0),9) = zeros(size(cd.branch((cd.branch(:,9)
~= 0),9)));
pfres = runpf(cd);

%% Importing line Data
linedata = cd.branch(:, 1:6); % Calling "linedata6.m" for Line Data...
linedata(:,6) = ones(size(linedata, 1),1);
fb = linedata(:,1); % From bus number...
tb = linedata(:,2); % To bus number...
r = linedata(:,3);  % Resistance, R...
x = linedata(:,4);  % Reactance, X...
b = linedata(:,5)./2;   % Ground Admittance, B/2...
a = linedata(:,6);  % Tap setting value.. %Assumed 1

y = 1./(r + 1j*x);

nbus = max(max(fb),max(tb));% no. of buses...
nbranch = length(fb);   % no. of branches...¨

%% Formation of Y-Bus(Admittance) Matrix
ybus = zeros(nbus,nbus);% Initialise YBus...
 % Formation of the Off-Diagonal Elements...
 for k=1:nbranch
 ybus(fb(k),tb(k)) = ybus(fb(k),tb(k))-y(k)/a(k);
 ybus(tb(k),fb(k)) = ybus(fb(k),tb(k));
 end
 % Formation of Diagonal Elements...
 for m =1:nbus
 for n =1:nbranch
 if fb(n) == m
 ybus(m,m) = ybus(m,m) + y(n)/(a(n)^2) + 1j*b(n);
 elseif tb(n) == m
 ybus(m,m) = ybus(m,m) + y(n) + 1j*b(n);
 end
 end
 end
 ybus

 %% Formation of B-Bus

 Bp=-imag(ybus-diag(sum(ybus)));
 Bpp=imag(ybus)


Regards
Saeed Ahmed

Re: leave

[Akash Tyagi]

Ok.
Thanks very much for clearing the confusion.

On Mon, Jul 17, 2017 at 7:01 PM, Bone, Gorazd 
wrote:

> Please allow me to clear up what is happening in my opinion.
>
> Manish Thapa is trying to leave the mailing list. This is unrelated to
> you, Akash.
>
> Regards
> --
> *Od:* bounce-121661287-78499...@list.cornell.edu [
> bounce-121661287-78499...@list.cornell.edu] v imenu Akash Tyagi [
> akashtyagi0...@gmail.com]
> *Poslano:* 17. julij 2017 14:36
> *Za:* MATPOWER discussion forum
> *Zadeva:* Re: leave
>
> Why would I leave this list?
>
> On Mon, Jul 17, 2017 at 6:03 PM, André Carvalho da Silva <
> andre.c.si...@inesctec.pt> wrote:
>
>> If you want to leave the list, just go to this page:
>> http://www.pserc.cornell.edu/matpower/mailinglists.html#discusslist and
>> type your email account under the ‘Leaving MATPOWER-L’ topic. Then hit the
>> “unsubscribe” button.
>>
>>
>>
>> *From:* bounce-121661244-76858...@list.cornell.edu [mailto:
>> bounce-121661244-76858...@list.cornell.edu] *On Behalf Of *Akash Tyagi
>> *Sent:* segunda-feira, 17 de julho de 2017 13:30
>> *To:* MATPOWER discussion forum 
>> *Subject:* Re: leave
>>
>>
>>
>> Why?
>>
>>
>>
>>
>>
>> On Mon, Jul 17, 2017 at 5:58 PM, Manish Thapa 
>> wrote:
>>
>> matpower discussion forum
>>
>>
>>
>> On Mon, Jul 17, 2017 at 1:40 PM, Akash Tyagi 
>> wrote:
>>
>> Leave what?
>>
>>
>>
>> On Mon, Jul 17, 2017 at 4:48 PM, Manish Thapa 
>> wrote:
>>
>> leave
>>
>>
>>
>>
>>
>>
>>
>
>

RE: leave

[Bone, Gorazd]

Please allow me to clear up what is happening in my opinion.

Manish Thapa is trying to leave the mailing list. This is unrelated to you, 
Akash.

Regards

Od: bounce-121661287-78499...@list.cornell.edu 
[bounce-121661287-78499...@list.cornell.edu] v imenu Akash Tyagi 
[akashtyagi0...@gmail.com]
Poslano: 17. julij 2017 14:36
Za: MATPOWER discussion forum
Zadeva: Re: leave

Why would I leave this list?

On Mon, Jul 17, 2017 at 6:03 PM, André Carvalho da Silva 
> wrote:
If you want to leave the list, just go to this page: 
http://www.pserc.cornell.edu/matpower/mailinglists.html#discusslist
 and type your email account under the ‘Leaving MATPOWER-L’ topic. Then hit the 
“unsubscribe” button.

From: 
bounce-121661244-76858...@list.cornell.edu
 
[mailto:bounce-121661244-76858...@list.cornell.edu]
 On Behalf Of Akash Tyagi
Sent: segunda-feira, 17 de julho de 2017 13:30
To: MATPOWER discussion forum 
>
Subject: Re: leave

Why?


On Mon, Jul 17, 2017 at 5:58 PM, Manish Thapa 
> wrote:
matpower discussion forum

On Mon, Jul 17, 2017 at 1:40 PM, Akash Tyagi 
> wrote:
Leave what?

On Mon, Jul 17, 2017 at 4:48 PM, Manish Thapa 
> wrote:
leave

Re: DC Power Flow

[Jose Luis Marín]

I don't mean to be disrespectful, but you should probably read this first:

   http://www.catb.org/esr/faqs/smart-questions.html

Your question is way too broad and vague.

-- 
Jose L. Marin
Grupo AIA



2017-07-17 15:21 GMT+02:00 Saeed Ahmed :

> I need to perform DC State Estimation and calculate the Real Power Flow in
> the lines. Need help please.
>
>
>
>
> Regards
> Saeed Ahmed
>
>

DC Power Flow

[Saeed Ahmed]

I need to perform DC State Estimation and calculate the Real Power Flow in
the lines. Need help please.




Regards
Saeed Ahmed

Re: leave

[Akash Tyagi]

Why would I leave this list?

On Mon, Jul 17, 2017 at 6:03 PM, André Carvalho da Silva <
andre.c.si...@inesctec.pt> wrote:

> If you want to leave the list, just go to this page:
> http://www.pserc.cornell.edu/matpower/mailinglists.html#discusslist and
> type your email account under the ‘Leaving MATPOWER-L’ topic. Then hit the
> “unsubscribe” button.
>
>
>
> *From:* bounce-121661244-76858...@list.cornell.edu [mailto:
> bounce-121661244-76858...@list.cornell.edu] *On Behalf Of *Akash Tyagi
> *Sent:* segunda-feira, 17 de julho de 2017 13:30
> *To:* MATPOWER discussion forum 
> *Subject:* Re: leave
>
>
>
> Why?
>
>
>
>
>
> On Mon, Jul 17, 2017 at 5:58 PM, Manish Thapa 
> wrote:
>
> matpower discussion forum
>
>
>
> On Mon, Jul 17, 2017 at 1:40 PM, Akash Tyagi 
> wrote:
>
> Leave what?
>
>
>
> On Mon, Jul 17, 2017 at 4:48 PM, Manish Thapa 
> wrote:
>
> leave
>
>
>
>
>
>
>

RE: leave

[André Carvalho da Silva]

If you want to leave the list, just go to this page: 
http://www.pserc.cornell.edu/matpower/mailinglists.html#discusslist 
  and 
type your email account under the ‘Leaving MATPOWER-L’ topic. Then hit the 
“unsubscribe” button.

 

From: bounce-121661244-76858...@list.cornell.edu 
[mailto:bounce-121661244-76858...@list.cornell.edu] On Behalf Of Akash Tyagi
Sent: segunda-feira, 17 de julho de 2017 13:30
To: MATPOWER discussion forum 
Subject: Re: leave

 

Why?

 

 

On Mon, Jul 17, 2017 at 5:58 PM, Manish Thapa  > wrote:

matpower discussion forum

 

On Mon, Jul 17, 2017 at 1:40 PM, Akash Tyagi  > wrote:

Leave what?

 

On Mon, Jul 17, 2017 at 4:48 PM, Manish Thapa  > wrote:

leave

 

 

 

Re: leave

[Akash Tyagi]

Why?


On Mon, Jul 17, 2017 at 5:58 PM, Manish Thapa 
wrote:

> matpower discussion forum
>
> On Mon, Jul 17, 2017 at 1:40 PM, Akash Tyagi 
> wrote:
>
>> Leave what?
>>
>> On Mon, Jul 17, 2017 at 4:48 PM, Manish Thapa 
>> wrote:
>>
>>> leave
>>>
>>
>>
>

Re: leave

[Manish Thapa]

matpower discussion forum

On Mon, Jul 17, 2017 at 1:40 PM, Akash Tyagi 
wrote:

> Leave what?
>
> On Mon, Jul 17, 2017 at 4:48 PM, Manish Thapa 
> wrote:
>
>> leave
>>
>
>

Re: leave

[Akash Tyagi]

Leave what?

On Mon, Jul 17, 2017 at 4:48 PM, Manish Thapa 
wrote:

> leave
>

leave

[Manish Thapa]

leave