Hello sir,
IN my project i want to find out ATC by using CPF
(continuation power flow) method algorithm in IEEE 14 bus system using PSAT
Matlab toolbox.so i have question that Is it possible to code CPF mehod in
PSAT for finding out ATC.IF yes then HOW? IF not then WHICH are the other
option ?
Sincerly,
Dharmesh
dabhi
THANK YOU SIR
On Thu, Sep 5, 2013 at 11:51 AM, dharmesh dabhi
<[email protected]>wrote:
> Hello sir,
> IN my project i want to find out ATC by using CPF
> (continuation power flow) method algorithm in IEEE 14 bus system using PSAT
> Matlab toolbox.so i have question that Is it possible to code CPF mehod in
> PSAT for finding out ATC.IF yes then HOW? IF not then WHICH are the other
> option ?
>
>
> On Thu, Sep 5, 2013 at 10:11 AM, Shri <[email protected]> wrote:
>
>>
>> On Sep 4, 2013, at 12:44 PM, dharmesh dabhi wrote:
>>
>> HELLO,
>> I have two questions
>> .Q:1 How Continuous power flow (CPF) different from Newton raphson(
>> N.R) ?
>>
>> AC power flow solution is carried out with a Newton-Rhapson method for a
>> fixed generation/loading profile. Continuation power flow consists of a
>> series of AC power flows where the loading/generation is
>> increased/decreased at each step. Instead of simply increasing/decreasing
>> the loading/generation and solving repeated power flows, an extra equation
>> is appended to the original power flow equations in a continuation power
>> flow. This extra equation describes how the current step is related to its
>> previous one. This is done so because at near loading limit, the Jacobian
>> matrix becomes ill-conditioned and a simple power flow may diverge. The
>> extra equation helps in eliminating this ill-conditioning issue. You may
>> want to refer this classical paper on continuation power flow by Ajjarapu
>> and Christy
>> http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=141737&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel1%2F59%2F3807%2F00141737
>>
>>
>> Q:2 What are the problem facing in N.R Method for large number of
>> population size during calculation of 'ATC' ?
>>
>> I am assuming here by large population size you mean large number of
>> variables.
>>
>> The biggest bottleneck is factoring the Jacobian matrix repeatedly. This
>> paper might be of interest to you
>> http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=736300&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel4%2F59%2F15860%2F00736300
>>
>> What is the problem that you are trying to solve? How big is your system?
>>
>> Shri
>>
>>
>> Sincerly,
>> Dharmesh dabhi
>>
>>
>>
>
