Re: Jacobian at nose point

y because of the way MATLAB calculates the determinant (pivoted LU factorization) and the ill-conditioning of the Jacobian near the nose point. Shri From: nilesh patel <nk2...@rediffmail.com> Reply-To: MATPOWER discussion forum <matpowe...@list.cornell.edu> Date: Tuesday, Au

Jacobian at nose point

with mpct.gen(:,[PG QG]) = mpcb.gen(:,[PG QG])*1.35 mpct.bus(:,[PD QD]) = mpcb.bus(:,[PD QD])*1.35 results = runcpf(mpcb, mpct, mpopt); J=makeJac(results) %%% determinant of J det(J) ans =  -1.0471e+126 Could you please suggest me what necessary steps I should follow to get determinant zero? Thanking you. Nilesh Patel

Re: PV curve using CPF

ed. Note that the step size for CPF, for natural parameterization, is given in terms of increments of the scaling parameter lambda, where lambda = 0 represents the base case and lambda = 1 is the target case. Going from 100 MW base case (lambda = 0) to 200 MW target case (lambda

Re: PV curve using CPF

inuation steps would need a stepsize of 0.1. (mpoption(‘cpf.step’, 0.1).  Shri From: nilesh patel <nk2...@rediffmail.com> Reply-To: MATPOWER discussion forum <matpowe...@list.cornell.edu> Date: Thursday, August 13, 2015 at 5:45 AM To: "matpowe...@list.cornell.edu&quo

Re: PV curve using CPF

aña SL Grupo AIA On Wed, Aug 12, 2015 at 12:16 PM, nilesh patel <nk2...@rediffmail.com> wrote: Sir,If i want to increase load in continuation power flow by step of 1 MW, What should be the step size of Lamda. My system base case load is 5000 MW. As CPF accuracy depends on step-size. Th

Re: PV curve using CPF

On Mon, Aug 10, 2015 at 6:23 AM, nilesh patel <nk2...@rediffmail.com> wrote: Sir,When we run continuation power flow for particular system, we get p-v curve for selected bus. using this p-v curve, we can find Voltage stability Margin (in MW) on that bus by difference of operating point

Re: PV curve using CPF

n be transferred for a given transfer direction. So, lambda is also a measure of the nose point for the whole network.  Shri From: nilesh patel <nk2...@rediffmail.com> Reply-To: MATPOWER discussion forum <matpowe...@list.cornell.edu> Date: Friday, August 7, 2015 a

PV curve using CPF

CPF. Thanks. Nilesh Patel

error during powerflow run

did not converge in 10 iterations. Thanks. Nilesh Patel

Merging of lines..

or all actual lines to be taken? Thanking u.    Nilesh Patel

Dispatchable load

? Thanks. Nilesh Patel

querry in add constraints in extended opf

lly Failed Did not converge in 3 iterations. >>>>>  Did NOT converge (0.10 seconds)  <<<<< Where could be the problem?? Do needful in the matter. Thanks. Nilesh Patel

software for FACTS device for system analysis.

Can anyone suggest good simulator/software for FACTS devices for system analysis??? Thanks Nilesh patel India

Dispatchable load

. function.)2. Which changes should be made in Generator Cost Data format for the same. Thanks. Nilesh Patel S.P.C.E. Visnagar, India 9979249556