I am not aware of any reason to assume that a nose curve should have any
particular shape … in particular, that it should decrease when moving toward
zero on the lower branch. Off the top-of-my head I can’t give a good intuitive
explanation of the difference between a nose-curve that does and another that
does not. Maybe someone else here has some intuition about that.
Ray
> On Nov 30, 2018, at 8:57 PM, pravin dangar <[email protected]> wrote:
>
>
> Pravin B. Dangar
> ME Sem-III
> Electrical Engineering Department
> Shantilal Shah Engineering College, Bhavnagar
> Gujarat
> Hello,
> P-V curve obtained from given code
> clc;
> clear all
> define_constants;
> mpopt = mpoption('out.all', 0, 'verbose', 2);
> mpopt = mpoption(mpopt, 'cpf.stop_at', 'FULL', 'cpf.step', 0.2);
> mpopt = mpoption(mpopt, 'cpf.plot.level', 2);
> mpcb = loadcase(case33bw); % load base case
> mpct = mpcb; % set up target case with
> mpct.gen(:, [PG QG]) = mpcb.gen(:, [PG QG]) * 1; % increased generation
> mpct.bus(:, [PD QD]) = mpcb.bus(:, [PD QD]) * 3.62; % and increased load
> results = runcpf(mpcb, mpct, mpopt);
>
> After a critical point, why they move upward instead of down side?
>
